source: functions.c @ caac19d

Last change on this file since caac19d was 67b959c, checked in by Jason Gross <jgross@mit.edu>, 10 years ago
Added a delete-and-expunge command. This command is analogous to the delete command, except that it also expunges only the {current,given} message. It also takes an optional --quiet parameter, because I plan to use it internally and don't want spew on success. Perhaps there's a better way to accomplish this... I couldn't figure out how the existing delete command is supposed to work internally. The logic behind the delete-and-expunge command is as follows: We always update both the message list and the display. So model the command that will do much of the work, owl_function_delete_and_expunge_message, off of owl_function_expunge. owl_function_delete_and_expunge_message takes one argument, which is the position of the item in the message list. It deletes it from the message list with a new function owl_messagelist_delete_and_expunge_element. This calls delete on the underlying owl_list, so the errors (if any) on an index that is too big might be unhelpful. owl_function_delete_and_expunge_cur and owl_function_delete_and_expunge_by_id both get the index of the relevant message (and a function owl_messagelist_get_index_by_id is added to messagelist.c to help the latter). They owl_function_error if no such message exists, and conditionally owl_function_makemsg on success.
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File size: 96.6 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 Owl software and any\n"
147    "     accompanying software that uses the Owl 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_strdup_printf("%s/zcrypt", owl_get_bindir());
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(zcrypt, 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 Owl");
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
1435      n=owl_message_get_notice(m);
1436
1437      if (!owl_message_is_pseudo(m)) {
1438        owl_fmtext_append_normal(&fm, "  Kind      : ");
1439        if (n->z_kind==UNSAFE) {
1440          owl_fmtext_append_normal(&fm, "UNSAFE\n");
1441        } else if (n->z_kind==UNACKED) {
1442          owl_fmtext_append_normal(&fm, "UNACKED\n");
1443        } else if (n->z_kind==ACKED) {
1444          owl_fmtext_append_normal(&fm, "ACKED\n");
1445        } else if (n->z_kind==HMACK) {
1446          owl_fmtext_append_normal(&fm, "HMACK\n");
1447        } else if (n->z_kind==HMCTL) {
1448          owl_fmtext_append_normal(&fm, "HMCTL\n");
1449        } else if (n->z_kind==SERVACK) {
1450          owl_fmtext_append_normal(&fm, "SERVACK\n");
1451        } else if (n->z_kind==SERVNAK) {
1452          owl_fmtext_append_normal(&fm, "SERVNACK\n");
1453        } else if (n->z_kind==CLIENTACK) {
1454          owl_fmtext_append_normal(&fm, "CLIENTACK\n");
1455        } else if (n->z_kind==STAT) {
1456          owl_fmtext_append_normal(&fm, "STAT\n");
1457        } else {
1458          owl_fmtext_append_normal(&fm, "ILLEGAL VALUE\n");
1459        }
1460      }
1461      owl_fmtext_appendf_normal(&fm, "  Host      : %s\n", owl_message_get_hostname(m));
1462
1463      if (!owl_message_is_pseudo(m)) {
1464        owl_fmtext_append_normal(&fm, "\n");
1465        owl_fmtext_appendf_normal(&fm, "  Port      : %i\n", ntohs(n->z_port));
1466        owl_fmtext_appendf_normal(&fm, "  Auth      : %s\n", owl_zephyr_get_authstr(n));
1467
1468        /* FIXME make these more descriptive */
1469        owl_fmtext_appendf_normal(&fm, "  Checkd Ath: %i\n", n->z_checked_auth);
1470        owl_fmtext_appendf_normal(&fm, "  Multi notc: %s\n", n->z_multinotice);
1471        owl_fmtext_appendf_normal(&fm, "  Num other : %i\n", n->z_num_other_fields);
1472        owl_fmtext_appendf_normal(&fm, "  Msg Len   : %i\n", n->z_message_len);
1473
1474        fields=owl_zephyr_get_num_fields(n);
1475        owl_fmtext_appendf_normal(&fm, "  Fields    : %i\n", fields);
1476
1477        for (i = 0; i < fields; i++) {
1478          tmpbuff = owl_zephyr_get_field_as_utf8(n, i + 1);
1479
1480          g_strdelimit(tmpbuff, "\n", '~');
1481          g_strdelimit(tmpbuff, "\r", '!');
1482
1483          owl_fmtext_appendf_normal(&fm, "  Field %i   : %s\n", i + 1, tmpbuff);
1484          g_free(tmpbuff);
1485        }
1486        owl_fmtext_appendf_normal(&fm, "  Default Fm: %s\n", n->z_default_format);
1487      }
1488
1489    }
1490#endif
1491  }
1492
1493  owl_fmtext_append_bold(&fm, "\nOwl Message Attributes:\n");
1494  owl_message_attributes_tofmtext(m, &attrfm);
1495  owl_fmtext_append_fmtext(&fm, &attrfm);
1496 
1497  owl_function_popless_fmtext(&fm);
1498  owl_fmtext_cleanup(&fm);
1499  owl_fmtext_cleanup(&attrfm);
1500}
1501
1502/* print the current message in a popup window.
1503 * Use the 'default' style regardless of whatever
1504 * style the user may be using
1505 */
1506void owl_function_curmsg_to_popwin(void)
1507{
1508  const owl_view *v;
1509  const owl_message *m;
1510  const owl_style *s;
1511  owl_fmtext fm;
1512
1513  v=owl_global_get_current_view(&g);
1514  s=owl_global_get_style_by_name(&g, "default");
1515
1516  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
1517
1518  if (!m || owl_view_get_size(v)==0) {
1519    owl_function_error("No current message");
1520    return;
1521  }
1522
1523  owl_fmtext_init_null(&fm);
1524  owl_style_get_formattext(s, &fm, m);
1525
1526  owl_function_popless_fmtext(&fm);
1527  owl_fmtext_cleanup(&fm);
1528}
1529
1530void owl_function_page_curmsg(int step)
1531{
1532  /* scroll down or up within the current message IF the message is truncated */
1533
1534  int offset, curmsg, lines;
1535  const owl_view *v;
1536  owl_message *m;
1537
1538  offset=owl_global_get_curmsg_vert_offset(&g);
1539  v=owl_global_get_current_view(&g);
1540  curmsg=owl_global_get_curmsg(&g);
1541  m=owl_view_get_element(v, curmsg);
1542  if (!m || owl_view_get_size(v)==0) return;
1543  lines=owl_message_get_numlines(m);
1544
1545  if (offset==0) {
1546    /* Bail if the curmsg isn't the last one displayed */
1547    if (curmsg != owl_mainwin_get_last_msg(owl_global_get_mainwin(&g))) {
1548      owl_function_makemsg("The entire message is already displayed");
1549      return;
1550    }
1551   
1552    /* Bail if we're not truncated */
1553    if (!owl_mainwin_is_curmsg_truncated(owl_global_get_mainwin(&g))) {
1554      owl_function_makemsg("The entire message is already displayed");
1555      return;
1556    }
1557  }
1558 
1559 
1560  /* don't scroll past the last line */
1561  if (step>0) {
1562    if (offset+step > lines-1) {
1563      owl_global_set_curmsg_vert_offset(&g, lines-1);
1564    } else {
1565      owl_global_set_curmsg_vert_offset(&g, offset+step);
1566    }
1567  }
1568
1569  /* would we be before the beginning of the message? */
1570  if (step<0) {
1571    if (offset+step<0) {
1572      owl_global_set_curmsg_vert_offset(&g, 0);
1573    } else {
1574      owl_global_set_curmsg_vert_offset(&g, offset+step);
1575    }
1576  }
1577 
1578  /* redisplay */
1579  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1580}
1581
1582void owl_function_resize_typwin(int newsize)
1583{
1584  owl_global_set_typwin_lines(&g, newsize);
1585  owl_mainpanel_layout_contents(&g.mainpanel);
1586}
1587
1588void owl_function_mainwin_pagedown(void)
1589{
1590  int i;
1591
1592  i=owl_mainwin_get_last_msg(owl_global_get_mainwin(&g));
1593  if (i<0) return;
1594  if (owl_mainwin_is_last_msg_truncated(owl_global_get_mainwin(&g))
1595      && (owl_global_get_curmsg(&g) < i)
1596      && (i>0)) {
1597    i--;
1598  }
1599  owl_global_set_curmsg(&g, i);
1600  owl_function_nextmsg();
1601}
1602
1603void owl_function_mainwin_pageup(void)
1604{
1605  owl_global_set_curmsg(&g, owl_global_get_topmsg(&g));
1606  owl_function_prevmsg();
1607}
1608
1609void owl_function_getsubs(void)
1610{
1611  char *buff;
1612
1613  buff=owl_zephyr_getsubs();
1614
1615  if (buff) {
1616    owl_function_popless_text(buff);
1617  } else {
1618    owl_function_popless_text("Error getting subscriptions");
1619  }
1620           
1621  g_free(buff);
1622}
1623
1624void owl_function_printallvars(void)
1625{
1626  const char *name;
1627  char *var;
1628  GPtrArray *varnames;
1629  int i;
1630  GString *str   = g_string_new("");
1631
1632  g_string_append_printf(str, "%-20s = %s\n", "VARIABLE", "VALUE");
1633  g_string_append_printf(str, "%-20s   %s\n",  "--------", "-----");
1634  varnames = owl_variable_dict_get_names(owl_global_get_vardict(&g));
1635  for (i = 0; i < varnames->len; i++) {
1636    name = varnames->pdata[i];
1637    if (name && name[0]!='_') {
1638      g_string_append_printf(str, "\n%-20s = ", name);
1639      var = owl_variable_get_tostring(owl_global_get_vardict(&g), name);
1640      if (var) {
1641        g_string_append(str, var);
1642        g_free(var);
1643      }
1644    }
1645  }
1646  g_string_append(str, "\n");
1647  owl_ptr_array_free(varnames, g_free);
1648
1649  owl_function_popless_text(str->str);
1650  g_string_free(str, true);
1651}
1652
1653void owl_function_show_variables(void)
1654{
1655  GPtrArray *varnames;
1656  owl_fmtext fm; 
1657  int i;
1658  const char *varname;
1659
1660  owl_fmtext_init_null(&fm);
1661  owl_fmtext_append_bold(&fm, 
1662      "Variables: (use 'show variable <name>' for details)\n");
1663  varnames = owl_variable_dict_get_names(owl_global_get_vardict(&g));
1664  for (i = 0; i < varnames->len; i++) {
1665    varname = varnames->pdata[i];
1666    if (varname && varname[0]!='_') {
1667      owl_variable_describe(owl_global_get_vardict(&g), varname, &fm);
1668    }
1669  }
1670  owl_ptr_array_free(varnames, g_free);
1671  owl_function_popless_fmtext(&fm);
1672  owl_fmtext_cleanup(&fm);
1673}
1674
1675void owl_function_show_variable(const char *name)
1676{
1677  owl_fmtext fm; 
1678
1679  owl_fmtext_init_null(&fm);
1680  owl_variable_get_help(owl_global_get_vardict(&g), name, &fm);
1681  owl_function_popless_fmtext(&fm);
1682  owl_fmtext_cleanup(&fm);
1683}
1684
1685void owl_function_delete_and_expunge_by_id(int id, bool exclaim_success)
1686{
1687  const owl_messagelist *ml = owl_global_get_msglist(&g);
1688  int msg = owl_messagelist_get_index_by_id(ml, id);
1689  if (msg < 0) {
1690    owl_function_error("No message with id %d: unable to delete", id);
1691  } else {
1692    owl_function_delete_and_expunge_message(msg);
1693    if (exclaim_success)
1694      owl_function_makemsg("Message deleted and expunged");
1695  }
1696}
1697
1698/* note: this applies to global message list, not to view.
1699 * If flag is 1, deletes.  If flag is 0, undeletes. */
1700void owl_function_delete_by_id(int id, int flag)
1701{
1702  const owl_messagelist *ml;
1703  owl_message *m;
1704  ml = owl_global_get_msglist(&g);
1705  m = owl_messagelist_get_by_id(ml, id);
1706  if (m) {
1707    if (flag == 1) {
1708      owl_message_mark_delete(m);
1709    } else if (flag == 0) {
1710      owl_message_unmark_delete(m);
1711    }
1712    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1713  } else {
1714    owl_function_error("No message with id %d: unable to mark for (un)delete",id);
1715  }
1716}
1717
1718void owl_function_delete_automsgs(void)
1719{
1720  /* mark for deletion all messages in the current view that match the
1721   * 'trash' filter */
1722
1723  int i, j, count;
1724  owl_message *m;
1725  const owl_view *v;
1726  const owl_filter *f;
1727
1728  /* get the trash filter */
1729  f=owl_global_get_filter(&g, "trash");
1730  if (!f) {
1731    owl_function_error("No trash filter defined");
1732    return;
1733  }
1734
1735  v=owl_global_get_current_view(&g);
1736
1737  count=0;
1738  j=owl_view_get_size(v);
1739  for (i=0; i<j; i++) {
1740    m=owl_view_get_element(v, i);
1741    if (owl_filter_message_match(f, m)) {
1742      count++;
1743      owl_message_mark_delete(m);
1744    }
1745  }
1746  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1747  owl_function_makemsg("%i messages marked for deletion", count);
1748}
1749
1750void owl_function_status(void)
1751{
1752  char buff[MAXPATHLEN+1];
1753  time_t start;
1754  int up, days, hours, minutes;
1755  owl_fmtext fm;
1756
1757  owl_fmtext_init_null(&fm);
1758
1759  start=owl_global_get_starttime(&g);
1760
1761  owl_fmtext_append_normal(&fm, "General Information:\n");
1762
1763  owl_fmtext_append_normal(&fm, "  Version: ");
1764  owl_fmtext_append_normal(&fm, OWL_VERSION_STRING);
1765  owl_fmtext_append_normal(&fm, "\n");
1766
1767  owl_fmtext_append_normal(&fm, "  Startup Arguments: ");
1768  owl_fmtext_append_normal(&fm, owl_global_get_startupargs(&g));
1769  owl_fmtext_append_normal(&fm, "\n");
1770
1771  owl_fmtext_append_normal(&fm, "  Current Directory: ");
1772  if(getcwd(buff, MAXPATHLEN) == NULL) {
1773    owl_fmtext_append_normal(&fm, "<Error in getcwd>");
1774  } else {
1775    owl_fmtext_append_normal(&fm, buff);
1776  }
1777  owl_fmtext_append_normal(&fm, "\n");
1778
1779  owl_fmtext_appendf_normal(&fm, "  Startup Time: %s", ctime(&start));
1780
1781  up=owl_global_get_runtime(&g);
1782  days=up/86400;
1783  up-=days*86400;
1784  hours=up/3600;
1785  up-=hours*3600;
1786  minutes=up/60;
1787  up-=minutes*60;
1788  owl_fmtext_appendf_normal(&fm, "  Run Time: %i days %2.2i:%2.2i:%2.2i\n", days, hours, minutes, up);
1789
1790  owl_fmtext_append_normal(&fm, "\nProtocol Options:\n");
1791  owl_fmtext_append_normal(&fm, "  Zephyr included    : ");
1792  if (owl_global_is_havezephyr(&g)) {
1793    owl_fmtext_append_normal(&fm, "yes\n");
1794  } else {
1795    owl_fmtext_append_normal(&fm, "no\n");
1796  }
1797  owl_fmtext_append_normal(&fm, "  AIM included       : yes\n");
1798  owl_fmtext_append_normal(&fm, "  Loopback included  : yes\n");
1799
1800
1801  owl_fmtext_append_normal(&fm, "\nBuild Options:\n");
1802  owl_fmtext_append_normal(&fm, "  Stderr redirection : ");
1803#if OWL_STDERR_REDIR
1804  owl_fmtext_append_normal(&fm, "yes\n");
1805#else
1806  owl_fmtext_append_normal(&fm, "no\n");
1807#endif
1808 
1809
1810  owl_fmtext_append_normal(&fm, "\nAIM Status:\n");
1811  owl_fmtext_append_normal(&fm, "  Logged in: ");
1812  if (owl_global_is_aimloggedin(&g)) {
1813    owl_fmtext_append_normal(&fm, owl_global_get_aim_screenname(&g));
1814    owl_fmtext_append_normal(&fm, "\n");
1815  } else {
1816    owl_fmtext_append_normal(&fm, "(not logged in)\n");
1817  }
1818
1819  owl_fmtext_append_normal(&fm, "  Processing events: ");
1820  if (owl_global_is_doaimevents(&g)) {
1821    owl_fmtext_append_normal(&fm, "yes\n");
1822  } else {
1823    owl_fmtext_append_normal(&fm, "no\n");
1824  }
1825
1826  owl_function_popless_fmtext(&fm);
1827  owl_fmtext_cleanup(&fm);
1828}
1829
1830void owl_function_show_term(void)
1831{
1832  owl_fmtext fm;
1833
1834  owl_fmtext_init_null(&fm);
1835  owl_fmtext_appendf_normal(&fm, "Terminal Lines: %i\nTerminal Columns: %i\n",
1836          owl_global_get_lines(&g),
1837          owl_global_get_cols(&g));
1838
1839  if (has_colors()) {
1840    owl_fmtext_append_normal(&fm, "Color: Yes\n");
1841    owl_fmtext_appendf_normal(&fm, "Number of color pairs: %i\n", owl_util_get_colorpairs());
1842    owl_fmtext_appendf_normal(&fm, "Can change colors: %s\n", can_change_color() ? "yes" : "no");
1843  } else {
1844    owl_fmtext_append_normal(&fm, "Color: No\n");
1845  }
1846
1847  owl_function_popless_fmtext(&fm);
1848  owl_fmtext_cleanup(&fm);
1849}
1850
1851/* if type = 0 then normal reply.
1852 * if type = 1 then it's a reply to sender
1853 * if enter = 0 then allow the command to be edited
1854 * if enter = 1 then don't wait for editing
1855 */
1856void owl_function_reply(int type, int enter)
1857{
1858  char *buff=NULL;
1859  const owl_message *m;
1860  const owl_filter *f;
1861 
1862  if (owl_view_get_size(owl_global_get_current_view(&g))==0) {
1863    owl_function_error("No message selected");
1864  } else {
1865    char *cmd;
1866   
1867    m=owl_view_get_element(owl_global_get_current_view(&g), owl_global_get_curmsg(&g));
1868    if (!m) {
1869      owl_function_error("No message selected");
1870      return;
1871    }
1872
1873    /* first check if we catch the reply-lockout filter */
1874    f=owl_global_get_filter(&g, "reply-lockout");
1875    if (f) {
1876      if (owl_filter_message_match(f, m)) {
1877        owl_function_error("Sorry, replies to this message have been disabled by the reply-lockout filter");
1878        return;
1879      }
1880    }
1881
1882    /* then check if it's a question and just bring up the command prompt */
1883    if (owl_message_is_question(m)) {
1884      owl_function_start_command("");
1885      return;
1886    }
1887
1888    if((type == 0 &&
1889        (cmd=owl_perlconfig_message_call_method(m, "replycmd", 0, NULL))) ||
1890       (type == 1 &&
1891        (cmd=owl_perlconfig_message_call_method(m, "replysendercmd", 0, NULL)))) {
1892      buff = cmd;
1893    }
1894
1895    if(!buff) {
1896        owl_function_error("I don't know how to reply to that message.");
1897        return;
1898    }
1899
1900    if (enter) {
1901      owl_history *hist = owl_global_get_cmd_history(&g);
1902      owl_history_store(hist, buff, false);
1903      owl_function_command_norv(buff);
1904    } else {
1905      owl_function_start_command(buff);
1906    }
1907    g_free(buff);
1908  }
1909}
1910
1911void owl_function_zlocate(int argc, const char *const *argv, int auth)
1912{
1913  owl_fmtext fm;
1914  char *ptr;
1915  char *result;
1916  int i;
1917
1918  owl_fmtext_init_null(&fm);
1919
1920  for (i=0; i<argc; i++) {
1921    ptr = long_zuser(argv[i]);
1922    result = owl_zephyr_zlocate(ptr, auth);
1923    owl_fmtext_append_normal(&fm, result);
1924    g_free(result);
1925    g_free(ptr);
1926  }
1927
1928  owl_function_popless_fmtext(&fm);
1929  owl_fmtext_cleanup(&fm);
1930}
1931
1932void owl_callback_command(owl_editwin *e)
1933{
1934  char *rv;
1935  const char *line = owl_editwin_get_text(e);
1936
1937  rv = owl_function_command(line);
1938   if (rv) {
1939    owl_function_makemsg("%s", rv);
1940    g_free(rv);
1941  }
1942}
1943
1944void owl_function_start_command(const char *line)
1945{
1946  owl_editwin *tw;
1947  owl_context *ctx;
1948
1949  tw = owl_global_set_typwin_active(&g, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));
1950
1951  owl_editwin_set_locktext(tw, "command: ");
1952
1953  owl_editwin_insert_string(tw, line);
1954
1955  ctx = owl_editcontext_new(OWL_CTX_EDITLINE, tw, "editline",
1956                            owl_global_deactivate_editcontext, &g);
1957  owl_global_push_context_obj(&g, ctx);
1958  owl_editwin_set_callback(tw, owl_callback_command);
1959}
1960
1961CALLER_OWN owl_editwin *owl_function_start_question(const char *line)
1962{
1963  owl_editwin *tw;
1964  owl_context *ctx;
1965
1966  tw = owl_global_set_typwin_active(&g, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));
1967
1968  owl_editwin_set_locktext(tw, line);
1969
1970  ctx = owl_editcontext_new(OWL_CTX_EDITRESPONSE, tw, "editresponse",
1971                            owl_global_deactivate_editcontext, &g);
1972  owl_global_push_context_obj(&g, ctx);
1973  return tw;
1974}
1975
1976CALLER_OWN owl_editwin *owl_function_start_password(const char *line)
1977{
1978  owl_editwin *tw;
1979  owl_context *ctx;
1980
1981  tw = owl_global_set_typwin_active(&g, OWL_EDITWIN_STYLE_ONELINE, NULL);
1982
1983  owl_editwin_set_echochar(tw, '*');
1984
1985  owl_editwin_set_locktext(tw, line);
1986
1987  ctx = owl_editcontext_new(OWL_CTX_EDITRESPONSE, tw, "editresponse",
1988                            owl_global_deactivate_editcontext, &g);
1989  owl_global_push_context_obj(&g, ctx);
1990  return tw;
1991}
1992
1993CALLER_OWN char *owl_function_exec(int argc, const char *const *argv, const char *buff, int type)
1994{
1995  /* if type == 1 display in a popup
1996   * if type == 2 display an admin messages
1997   * if type == 0 return output
1998   * else display in a popup
1999   */
2000  const char *redirect = " 2>&1 < /dev/null";
2001  char *newbuff;
2002  char *out;
2003  FILE *p;
2004
2005#if OWL_STDERR_REDIR
2006  redirect = " < /dev/null";
2007#endif
2008
2009  if (argc<2) {
2010    owl_function_error("Wrong number of arguments to the exec command");
2011    return NULL;
2012  }
2013
2014  buff = skiptokens(buff, 1);
2015  newbuff = g_strdup_printf("exec%s; %s", redirect, buff);
2016
2017  if (type == OWL_OUTPUT_POPUP) {
2018    owl_popexec_new(newbuff);
2019  } else {
2020    p = popen(newbuff, "r");
2021    out = owl_slurp(p);
2022    pclose(p);
2023   
2024    if (type == OWL_OUTPUT_RETURN) {
2025      g_free(newbuff);
2026      return out;
2027    } else if (type == OWL_OUTPUT_ADMINMSG) {
2028      owl_function_adminmsg(buff, out);
2029    }
2030    g_free(out);
2031  }
2032  g_free(newbuff);
2033  return NULL;
2034}
2035
2036CALLER_OWN char *owl_function_perl(int argc, const char *const *argv, const char *buff, int type)
2037{
2038  /* if type == 1 display in a popup
2039   * if type == 2 display an admin messages
2040   * if type == 0 return output
2041   * else display in a popup
2042   */
2043  char *perlout;
2044
2045  if (argc<2) {
2046    owl_function_error("Wrong number of arguments to perl command");
2047    return NULL;
2048  }
2049
2050  /* consume first token (argv[0]) */
2051  buff = skiptokens(buff, 1);
2052
2053  perlout = owl_perlconfig_execute(buff);
2054  if (perlout) { 
2055    if (type == OWL_OUTPUT_POPUP) {
2056      owl_function_popless_text(perlout);
2057    } else if (type == OWL_OUTPUT_ADMINMSG) {
2058      owl_function_adminmsg(buff, perlout);
2059    } else if (type == OWL_OUTPUT_RETURN) {
2060      return perlout;
2061    }
2062    g_free(perlout);
2063  }
2064  return NULL;
2065}
2066
2067/* Change the filter associated with the current view.
2068 * This also figures out which message in the new filter
2069 * should have the pointer.
2070 */
2071void owl_function_change_currentview_filter(const char *filtname)
2072{
2073  owl_view *v;
2074  owl_filter *f;
2075  int curid=-1, newpos, curmsg;
2076  const owl_message *curm=NULL;
2077
2078  v=owl_global_get_current_view(&g);
2079
2080  curmsg=owl_global_get_curmsg(&g);
2081  if (curmsg==-1) {
2082    owl_function_debugmsg("Hit the curmsg==-1 case in change_view");
2083  } else {
2084    curm=owl_view_get_element(v, curmsg);
2085    if (curm) {
2086      curid=owl_message_get_id(curm);
2087      owl_view_save_curmsgid(v, curid);
2088    }
2089  }
2090
2091  f=owl_global_get_filter(&g, filtname);
2092  if (!f) {
2093    owl_function_error("Unknown filter %s", filtname);
2094    return;
2095  }
2096
2097  owl_view_new_filter(v, f);
2098
2099  /* Figure out what to set the current message to.
2100   * - If the view we're leaving has messages in it, go to the closest message
2101   *   to the last message pointed to in that view.
2102   * - If the view we're leaving is empty, try to restore the position
2103   *   from the last time we were in the new view.  */
2104  if (curm) {
2105    newpos = owl_view_get_nearest_to_msgid(v, curid);
2106  } else {
2107    newpos = owl_view_get_nearest_to_saved(v);
2108  }
2109
2110  owl_global_set_curmsg(&g, newpos);
2111  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
2112  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2113  owl_global_set_direction_downwards(&g);
2114}
2115
2116/* Create a new filter, or replace an existing one
2117 * with a new definition.
2118 */
2119void owl_function_create_filter(int argc, const char *const *argv)
2120{
2121  owl_filter *f;
2122  const owl_view *v;
2123  int inuse = 0;
2124
2125  if (argc < 2) {
2126    owl_function_error("Wrong number of arguments to filter command");
2127    return;
2128  }
2129
2130  owl_function_debugmsg("owl_function_create_filter: starting to create filter named %s", argv[1]);
2131
2132  v=owl_global_get_current_view(&g);
2133
2134  /* don't touch the all filter */
2135  if (!strcmp(argv[1], "all")) {
2136    owl_function_error("You may not change the 'all' filter.");
2137    return;
2138  }
2139
2140  /* deal with the case of trying change the filter color */
2141  if (argc==4 && !strcmp(argv[2], "-c")) {
2142    f=owl_global_get_filter(&g, argv[1]);
2143    if (!f) {
2144      owl_function_error("The filter '%s' does not exist.", argv[1]);
2145      return;
2146    }
2147    if (owl_util_string_to_color(argv[3])==OWL_COLOR_INVALID) {
2148      owl_function_error("The color '%s' is not available.", argv[3]);
2149      return;
2150    }
2151    owl_filter_set_fgcolor(f, owl_util_string_to_color(argv[3]));
2152    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2153    return;
2154  }
2155  if (argc==4 && !strcmp(argv[2], "-b")) {
2156    f=owl_global_get_filter(&g, argv[1]);
2157    if (!f) {
2158      owl_function_error("The filter '%s' does not exist.", argv[1]);
2159      return;
2160    }
2161    if (owl_util_string_to_color(argv[3])==OWL_COLOR_INVALID) {
2162      owl_function_error("The color '%s' is not available.", argv[3]);
2163      return;
2164    }
2165    owl_filter_set_bgcolor(f, owl_util_string_to_color(argv[3]));
2166    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2167    return;
2168  }
2169
2170  /* create the filter and check for errors */
2171  f = owl_filter_new(argv[1], argc-2, argv+2);
2172  if (f == NULL) {
2173    owl_function_error("Invalid filter");
2174    return;
2175  }
2176
2177  /* if the named filter is in use by the current view, remember it */
2178  if (!strcmp(owl_view_get_filtname(v), argv[1])) {
2179    inuse=1;
2180  }
2181
2182  /* if the named filter already exists, nuke it */
2183  if (owl_global_get_filter(&g, argv[1])) {
2184    owl_global_remove_filter(&g, argv[1]);
2185  }
2186
2187  /* add the filter */
2188  owl_global_add_filter(&g, f);
2189
2190  /* if it was in use by the current view then update */
2191  if (inuse) {
2192    owl_function_change_currentview_filter(argv[1]);
2193  }
2194  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2195}
2196
2197/* If 'filtername' does not start with 'not-' create a filter named
2198 * 'not-<filtername>' defined as "not filter <filtername>".  If the
2199 * filter 'not-<filtername>' already exists, do not overwrite it.  If
2200 * 'filtername' begins with 'not-' and a filter 'filtername' already
2201 * exists, then do nothing.  If the filter 'filtername' does not
2202 * exist, create it and define it as 'not filter <filtername>'
2203 *
2204 * Returns the name of the negated filter, which the caller must free.
2205 */
2206CALLER_OWN char *owl_function_create_negative_filter(const char *filtername)
2207{
2208  char *newname;
2209  const owl_filter *tmpfilt;
2210  const char *argv[5];
2211
2212  owl_function_debugmsg("owl_function_create_negative_filter");
2213 
2214  if (!strncmp(filtername, "not-", 4)) {
2215    newname=g_strdup(filtername+4);
2216  } else {
2217    newname=g_strdup_printf("not-%s", filtername);
2218  }
2219
2220  tmpfilt=owl_global_get_filter(&g, newname);
2221  if (!tmpfilt) {
2222    argv[0]="filter"; /* anything is fine here */
2223    argv[1]=newname;
2224    argv[2]="not";
2225    argv[3]="filter";
2226    argv[4]=filtername;
2227    owl_function_create_filter(5, argv);
2228  }
2229
2230  owl_function_debugmsg("owl_function_create_negative_filter: returning with %s", newname);
2231  return(newname);
2232}
2233
2234void owl_function_show_filters(void)
2235{
2236  const owl_filter *f;
2237  GList *fl;
2238  owl_fmtext fm;
2239
2240  owl_fmtext_init_null(&fm);
2241
2242  owl_fmtext_append_bold(&fm, "Filters:\n");
2243
2244  for (fl = g.filterlist; fl; fl = g_list_next(fl)) {
2245    f = fl->data;
2246    owl_fmtext_append_normal(&fm, "   ");
2247    owl_fmtext_append_normal_color(&fm, owl_filter_get_name(f),
2248                                   owl_filter_get_fgcolor(f),
2249                                   owl_filter_get_bgcolor(f));
2250    owl_fmtext_append_normal(&fm, "\n");
2251  }
2252  owl_function_popless_fmtext(&fm);
2253  owl_fmtext_cleanup(&fm);
2254}
2255
2256void owl_function_show_filter(const char *name)
2257{
2258  const owl_filter *f;
2259  char *buff, *tmp;
2260
2261  f=owl_global_get_filter(&g, name);
2262  if (!f) {
2263    owl_function_error("There is no filter named %s", name);
2264    return;
2265  }
2266  tmp = owl_filter_print(f);
2267  buff = g_strdup_printf("%s: %s", owl_filter_get_name(f), tmp);
2268  owl_function_popless_text(buff);
2269  g_free(buff);
2270  g_free(tmp);
2271}
2272
2273void owl_function_show_zpunts(void)
2274{
2275  const owl_filter *f;
2276  const GPtrArray *fl;
2277  char *tmp;
2278  owl_fmtext fm;
2279  int i;
2280
2281  owl_fmtext_init_null(&fm);
2282
2283  fl=owl_global_get_puntlist(&g);
2284  owl_fmtext_append_bold(&fm, "Active zpunt filters:\n");
2285
2286  for (i = 0; i < fl->len; i++) {
2287    f = fl->pdata[i];
2288    owl_fmtext_appendf_normal(&fm, "[% 2d] ", i+1);
2289    tmp = owl_filter_print(f);
2290    owl_fmtext_append_normal(&fm, tmp);
2291    g_free(tmp);
2292  }
2293  owl_function_popless_fmtext(&fm);
2294  owl_fmtext_cleanup(&fm);
2295}
2296
2297/* Create a filter for a class, instance if one doesn't exist.  If
2298 * instance is NULL then catch all messgaes in the class.  Returns the
2299 * name of the filter or null.  The caller must free this name.
2300 * If 'related' is nonzero, encompass unclasses and .d classes as well.
2301 */
2302CALLER_OWN char *owl_function_classinstfilt(const char *c, const char *i, int related) 
2303{
2304  owl_filter *f;
2305  char *filtname;
2306  char *tmpclass, *tmpinstance = NULL;
2307  char *class, *instance = NULL;
2308  GString *buf;
2309
2310  if (related) {
2311    class = owl_util_baseclass(c);
2312    if (i) {
2313      instance = owl_util_baseclass(i);
2314    }
2315  } else {
2316    class = g_strdup(c);
2317    if (i) {
2318      instance = g_strdup(i);
2319    }
2320  }
2321
2322  /* name for the filter */
2323  if (!instance) {
2324    filtname = g_strdup_printf("%sclass-%s", related ? "related-" : "", class);
2325  } else {
2326    filtname = g_strdup_printf("%sclass-%s-instance-%s", related ? "related-" : "", class, instance);
2327  }
2328  /* downcase it */
2329  {
2330    char *temp = g_utf8_strdown(filtname, -1);
2331    if (temp) {
2332      g_free(filtname);
2333      filtname = temp;
2334    }
2335  }
2336 
2337  /* if it already exists then go with it.  This lets users override */
2338  if (owl_global_get_filter(&g, filtname)) {
2339    goto done;
2340  }
2341
2342  /* create the new filter */
2343  tmpclass=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2344  if (instance) {
2345    tmpinstance=owl_text_quote(instance, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2346  }
2347
2348  buf = g_string_new("");
2349  owl_string_appendf_quoted(buf,
2350                            related ? "class ^(un)*%q(\\.d)*$" : "class ^%q$",
2351                            tmpclass);
2352
2353  if (tmpinstance) {
2354    owl_string_appendf_quoted(buf,
2355                              related ?
2356                              " and ( instance ^(un)*%q(\\.d)*$ )" :
2357                              " and instance ^%q$",
2358                              tmpinstance);
2359  }
2360  g_free(tmpclass);
2361  g_free(tmpinstance);
2362
2363  f = owl_filter_new_fromstring(filtname, buf->str);
2364  g_string_free(buf, true);
2365  if (f == NULL) {
2366    /* Couldn't make a filter for some reason. Return NULL. */
2367    owl_function_error("Error creating filter '%s'", filtname);
2368    g_free(filtname);
2369    filtname = NULL;
2370    goto done;
2371  }
2372
2373  /* add it to the global list */
2374  owl_global_add_filter(&g, f);
2375
2376done:
2377  g_free(class);
2378  g_free(instance);
2379  return(filtname);
2380}
2381
2382/* Create a filter for personal zephyrs to or from the specified
2383 * zephyr user.  Includes login/logout notifications for the user.
2384 * The name of the filter will be 'user-<shortuser>'.  If a filter already
2385 * exists with this name, no new filter will be created.  This allows
2386 * the configuration to override this function.  Returns the name of
2387 * the filter, which the caller must free.
2388 */
2389CALLER_OWN char *owl_function_zuserfilt(const char *longuser)
2390{
2391  owl_filter *f;
2392  char *argbuff, *esclonguser, *shortuser, *filtname;
2393
2394  /* name for the filter */
2395  shortuser = short_zuser(longuser);
2396  filtname = g_strdup_printf("user-%s", shortuser);
2397  g_free(shortuser);
2398
2399  /* if it already exists then go with it.  This lets users override */
2400  if (owl_global_get_filter(&g, filtname)) {
2401    return filtname;
2402  }
2403
2404  /* create the new-internal filter */
2405  esclonguser = owl_text_quote(longuser, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2406
2407  argbuff=owl_string_build_quoted("( type ^zephyr$ and filter personal and "
2408      "( ( direction ^in$ and sender ^%q$ ) or ( direction ^out$ and "
2409      "recipient ^%q$ ) ) ) or ( ( class ^login$ ) and ( sender ^%q$ ) )",
2410      esclonguser, esclonguser, esclonguser);
2411  g_free(esclonguser);
2412
2413  f = owl_filter_new_fromstring(filtname, argbuff);
2414  g_free(argbuff);
2415
2416  if (f == NULL) {
2417    /* Couldn't make a filter for some reason. Return NULL. */
2418    owl_function_error("Error creating filter '%s'", filtname);
2419    g_free(filtname);
2420    return NULL;
2421  }
2422
2423  /* add it to the global list */
2424  owl_global_add_filter(&g, f);
2425
2426  return(filtname);
2427}
2428
2429/* Create a filter for AIM IM messages to or from the specified
2430 * screenname.  The name of the filter will be 'aimuser-<user>'.  If a
2431 * filter already exists with this name, no new filter will be
2432 * created.  This allows the configuration to override this function.
2433 * Returns the name of the filter, which the caller must free.
2434 */
2435CALLER_OWN char *owl_function_aimuserfilt(const char *user)
2436{
2437  owl_filter *f;
2438  char *argbuff, *filtname;
2439  char *escuser;
2440
2441  /* name for the filter */
2442  filtname=g_strdup_printf("aimuser-%s", user);
2443
2444  /* if it already exists then go with it.  This lets users override */
2445  if (owl_global_get_filter(&g, filtname)) {
2446    return(g_strdup(filtname));
2447  }
2448
2449  /* create the new-internal filter */
2450  escuser = owl_text_quote(user, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2451
2452  argbuff = g_strdup_printf(
2453      "( type ^aim$ and ( ( sender ^%1$s$ and recipient ^%2$s$ ) or "
2454      "( sender ^%2$s$ and recipient ^%1$s$ ) ) )",
2455      escuser, owl_global_get_aim_screenname_for_filters(&g));
2456  g_free(escuser);
2457
2458  f = owl_filter_new_fromstring(filtname, argbuff);
2459  g_free(argbuff);
2460
2461  if (f == NULL) {
2462    owl_function_error("Error creating filter '%s'", filtname);
2463    g_free(filtname);
2464    return NULL;
2465  }
2466
2467  /* add it to the global list */
2468  owl_global_add_filter(&g, f);
2469
2470  return(filtname);
2471}
2472
2473CALLER_OWN char *owl_function_typefilt(const char *type)
2474{
2475  owl_filter *f;
2476  char *argbuff, *filtname, *esctype;
2477
2478  /* name for the filter */
2479  filtname=g_strdup_printf("type-%s", type);
2480
2481  /* if it already exists then go with it.  This lets users override */
2482  if (owl_global_get_filter(&g, filtname)) {
2483    return filtname;
2484  }
2485
2486  /* create the new-internal filter */
2487  esctype = owl_text_quote(type, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2488
2489  argbuff = owl_string_build_quoted("type ^%q$", esctype);
2490  g_free(esctype);
2491
2492  f = owl_filter_new_fromstring(filtname, argbuff);
2493  g_free(argbuff);
2494
2495  if (f == NULL) {
2496    owl_function_error("Error creating filter '%s'", filtname);
2497    g_free(filtname);
2498    return NULL;
2499  }
2500
2501  /* add it to the global list */
2502  owl_global_add_filter(&g, f);
2503
2504  return filtname;
2505}
2506
2507/* If flag is 1, marks for deletion.  If flag is 0,
2508 * unmarks for deletion. */
2509void owl_function_delete_curview_msgs(int flag)
2510{
2511  const owl_view *v;
2512  int i, j;
2513
2514  v=owl_global_get_current_view(&g);
2515  j=owl_view_get_size(v);
2516  for (i=0; i<j; i++) {
2517    if (flag == 1) {
2518      owl_message_mark_delete(owl_view_get_element(v, i));
2519    } else if (flag == 0) {
2520      owl_message_unmark_delete(owl_view_get_element(v, i));
2521    }
2522  }
2523
2524  owl_function_makemsg("%i messages marked for %sdeletion", j, flag?"":"un");
2525
2526  owl_mainwin_redisplay(owl_global_get_mainwin(&g)); 
2527}
2528
2529static CALLER_OWN char *owl_function_smartfilter_cc(const owl_message *m)
2530{
2531  const char *ccs;
2532  char *ccs_quoted;
2533  char *filtname;
2534  owl_filter *f;
2535  GString *buf;
2536
2537  ccs = owl_message_get_attribute_value(m, "zephyr_ccs");
2538
2539  filtname = g_strdup_printf("conversation-%s", ccs);
2540  g_strdelimit(filtname, " ", '-');
2541
2542  if (owl_global_get_filter(&g, filtname)) {
2543    return filtname;
2544  }
2545
2546  buf = g_string_new("type ^zephyr$ and filter personal and "
2547                     "zephyr_ccs ^");
2548  ccs_quoted = owl_text_quote(ccs, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2549  owl_string_append_quoted_arg(buf, ccs_quoted);
2550  g_string_append_c(buf, '$');
2551  g_free(ccs_quoted);
2552
2553  f = owl_filter_new_fromstring(filtname, buf->str);
2554  g_string_free(buf, true);
2555
2556  if (f == NULL) {
2557    owl_function_error("Error creating filter '%s'", filtname);
2558    g_free(filtname);
2559    return NULL;
2560  }
2561
2562  owl_global_add_filter(&g, f);
2563
2564  return filtname;
2565}
2566
2567/* Create a filter based on the current message.  Returns the name of
2568 * a filter or null.  The caller must free this name.
2569 *
2570 * if the curmsg is a personal zephyr return a filter name
2571 *    to the zephyr conversation with that user.
2572 * If the curmsg is a zephyr class message, instance foo, recip *,
2573 *    return a filter name to the class, inst.
2574 * If the curmsg is a zephyr class message and type==0 then
2575 *    return a filter name for just the class.
2576 * If the curmsg is a zephyr class message and type==1 then
2577 *    return a filter name for the class and instance.
2578 * If the curmsg is a personal AIM message returna  filter
2579 *    name to the AIM conversation with that user
2580 */
2581CALLER_OWN char *owl_function_smartfilter(int type, int invert_related)
2582{
2583  const owl_view *v;
2584  const owl_message *m;
2585  char *filtname = NULL;
2586  const char *argv[2], *zperson;
2587  int related = owl_global_is_narrow_related(&g) ^ invert_related;
2588
2589  v=owl_global_get_current_view(&g);
2590  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
2591
2592  if (!m || owl_view_get_size(v)==0) {
2593    owl_function_error("No message selected\n");
2594    return(NULL);
2595  }
2596
2597  /* very simple handling of admin messages for now */
2598  if (owl_message_is_type_admin(m)) {
2599    return(owl_function_typefilt("admin"));
2600  }
2601
2602  /* very simple handling of loopback messages for now */
2603  if (owl_message_is_type_loopback(m)) {
2604    return(owl_function_typefilt("loopback"));
2605  }
2606
2607  /* aim messages */
2608  if (owl_message_is_type_aim(m)) {
2609    if (owl_message_is_direction_in(m)) {
2610      filtname=owl_function_aimuserfilt(owl_message_get_sender(m));
2611    } else if (owl_message_is_direction_out(m)) {
2612      filtname=owl_function_aimuserfilt(owl_message_get_recipient(m));
2613    }
2614    return(filtname);
2615  }
2616
2617  /* narrow personal and login messages to the sender or recip as appropriate */
2618  if (owl_message_is_type_zephyr(m)) {
2619    if (owl_message_is_personal(m) || owl_message_is_loginout(m)) {
2620      if (owl_message_get_attribute_value(m, "zephyr_ccs") != NULL) {
2621        return owl_function_smartfilter_cc(m);
2622      }
2623
2624      if (owl_message_is_direction_in(m)) {
2625        zperson = owl_message_get_sender(m);
2626      } else {
2627        zperson = owl_message_get_recipient(m);
2628      }
2629      filtname = owl_function_zuserfilt(zperson);
2630      return filtname;
2631    }
2632
2633    /* narrow class MESSAGE, instance foo, recip * messages to class, inst */
2634    if (!strcasecmp(owl_message_get_class(m), "message")) {
2635      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m), related);
2636      return(filtname);
2637    }
2638
2639    /* otherwise narrow to the class */
2640    if (type==0) {
2641      filtname=owl_function_classinstfilt(owl_message_get_class(m), NULL, related);
2642    } else if (type==1) {
2643      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m), related);
2644    }
2645    return(filtname);
2646  }
2647
2648  /* pass it off to perl */
2649  argv[0] = type ? "1" : "0";
2650  argv[1] = related ? "1" : "0";
2651  return owl_perlconfig_message_call_method(m, "smartfilter", 2, argv);
2652}
2653
2654void owl_function_smartzpunt(int type)
2655{
2656  /* Starts a zpunt command based on the current class,instance pair.
2657   * If type=0, uses just class.  If type=1, uses instance as well. */
2658  const owl_view *v;
2659  const owl_message *m;
2660  const char *mclass, *minst;
2661  GString *buf;
2662 
2663  v=owl_global_get_current_view(&g);
2664  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
2665
2666  if (!m || owl_view_get_size(v)==0) {
2667    owl_function_error("No message selected\n");
2668    return;
2669  }
2670
2671  /* for now we skip admin messages. */
2672  if (owl_message_is_type_admin(m)
2673      || owl_message_is_loginout(m)
2674      || !owl_message_is_type_zephyr(m)) {
2675    owl_function_error("smartzpunt doesn't support this message type.");
2676    return;
2677  }
2678
2679  mclass = owl_message_get_class(m);
2680  minst = owl_message_get_instance(m);
2681  if (!mclass || !*mclass || *mclass==' '
2682      || (!strcasecmp(mclass, "message") && !strcasecmp(minst, "personal"))
2683      || (type && (!minst || !*minst|| *minst==' '))) {
2684    owl_function_error("smartzpunt can't safely do this for <%s,%s>",
2685                         mclass, minst);
2686  } else {
2687    buf = g_string_new("start-command zpunt ");
2688    owl_string_append_quoted_arg(buf, mclass);
2689    if (type) {
2690      g_string_append_c(buf, ' ');
2691      owl_string_append_quoted_arg(buf, minst);
2692    } else {
2693      g_string_append(buf, " *");
2694    }
2695    owl_function_command_norv(buf->str);
2696    g_string_free(buf, true);
2697  }
2698}
2699
2700/* Set the color of the current view's filter to
2701 * be 'color'
2702 */
2703void owl_function_color_current_filter(const char *fgcolor, const char *bgcolor)
2704{
2705  const char *name;
2706
2707  name=owl_view_get_filtname(owl_global_get_current_view(&g));
2708  owl_function_color_filter(name, fgcolor, bgcolor);
2709}
2710
2711/* Set the color of the filter 'filter' to be 'color'.  If the color
2712 * name does not exist, return -1, if the filter does not exist or is
2713 * the "all" filter, return -2.  Return 0 on success
2714 */
2715int owl_function_color_filter(const char *filtname, const char *fgcolor, const char *bgcolor)
2716{
2717  owl_filter *f;
2718
2719  f=owl_global_get_filter(&g, filtname);
2720  if (!f) {
2721    owl_function_error("Unknown filter");
2722    return(-2);
2723  }
2724
2725  /* don't touch the all filter */
2726  if (!strcmp(filtname, "all")) {
2727    owl_function_error("You may not change the 'all' filter.");
2728    return(-2);
2729  }
2730
2731  if (owl_util_string_to_color(fgcolor)==OWL_COLOR_INVALID) {
2732    owl_function_error("No color named '%s' avilable.", fgcolor);
2733    return(-1);
2734  }
2735
2736
2737  if (bgcolor != NULL) {
2738    if (owl_util_string_to_color(bgcolor)==OWL_COLOR_INVALID) {
2739      owl_function_error("No color named '%s' avilable.", bgcolor);
2740      return(-1);
2741    }
2742    owl_filter_set_bgcolor(f, owl_util_string_to_color(bgcolor));
2743  }
2744  owl_filter_set_fgcolor(f, owl_util_string_to_color(fgcolor));
2745 
2746  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2747  return(0);
2748}
2749
2750void owl_function_show_colors(void)
2751{
2752  owl_fmtext fm;
2753  int i; 
2754 
2755  owl_fmtext_init_null(&fm);
2756  owl_fmtext_append_normal(&fm,"default:  ");
2757  owl_fmtext_append_normal_color(&fm, "default\n", OWL_COLOR_DEFAULT, OWL_COLOR_DEFAULT);
2758
2759  owl_fmtext_append_normal(&fm,"black:    ");
2760  owl_fmtext_append_normal_color(&fm, "black\n", OWL_COLOR_BLACK, OWL_COLOR_DEFAULT);
2761
2762  owl_fmtext_append_normal(&fm,"red:      ");
2763  owl_fmtext_append_normal_color(&fm, "red\n", OWL_COLOR_RED, OWL_COLOR_DEFAULT);
2764
2765  owl_fmtext_append_normal(&fm,"green:    ");
2766  owl_fmtext_append_normal_color(&fm, "green\n", OWL_COLOR_GREEN, OWL_COLOR_DEFAULT);
2767
2768  owl_fmtext_append_normal(&fm,"yellow:   ");
2769  owl_fmtext_append_normal_color(&fm, "yellow\n", OWL_COLOR_YELLOW, OWL_COLOR_DEFAULT);
2770
2771  owl_fmtext_append_normal(&fm,"blue:     ");
2772  owl_fmtext_append_normal_color(&fm, "blue\n", OWL_COLOR_BLUE, OWL_COLOR_DEFAULT);
2773
2774  owl_fmtext_append_normal(&fm,"magenta:  ");
2775  owl_fmtext_append_normal_color(&fm, "magenta\n", OWL_COLOR_MAGENTA, OWL_COLOR_DEFAULT);
2776
2777  owl_fmtext_append_normal(&fm,"cyan:     ");
2778  owl_fmtext_append_normal_color(&fm, "cyan\n", OWL_COLOR_CYAN, OWL_COLOR_DEFAULT);
2779
2780  owl_fmtext_append_normal(&fm,"white:    ");
2781  owl_fmtext_append_normal_color(&fm, "white\n", OWL_COLOR_WHITE, OWL_COLOR_DEFAULT);
2782
2783  for(i = 8; i < COLORS; ++i) {
2784    char* str1 = g_strdup_printf("%4i:     ",i);
2785    char* str2 = g_strdup_printf("%i\n",i);
2786    owl_fmtext_append_normal(&fm,str1);
2787    owl_fmtext_append_normal_color(&fm, str2, i, OWL_COLOR_DEFAULT);
2788    g_free(str1);
2789     g_free(str2);
2790  }
2791 
2792  owl_function_popless_fmtext(&fm);
2793  owl_fmtext_cleanup(&fm);
2794}
2795
2796/* add the given class, inst, recip to the punt list for filtering.
2797 *   if direction==0 then punt
2798 *   if direction==1 then unpunt
2799 */
2800void owl_function_zpunt(const char *class, const char *inst, const char *recip, int direction)
2801{
2802  GPtrArray *argv;
2803  char *quoted;
2804
2805  argv = g_ptr_array_new();
2806  if (!strcmp(class, "*")) {
2807    g_ptr_array_add(argv, g_strdup("class"));
2808    g_ptr_array_add(argv, g_strdup(".*"));
2809  } else {
2810    quoted=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2811    g_ptr_array_add(argv, g_strdup("class"));
2812    g_ptr_array_add(argv, g_strdup_printf("^(un)*%s(\\.d)*$", quoted));
2813    g_free(quoted);
2814  }
2815  if (!strcmp(inst, "*")) {
2816    g_ptr_array_add(argv, g_strdup("and"));
2817    g_ptr_array_add(argv, g_strdup("instance"));
2818    g_ptr_array_add(argv, g_strdup(".*"));
2819  } else {
2820    quoted=owl_text_quote(inst, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2821    g_ptr_array_add(argv, g_strdup("and"));
2822    g_ptr_array_add(argv, g_strdup("instance"));
2823    g_ptr_array_add(argv, g_strdup_printf("^(un)*%s(\\.d)*$", quoted));
2824    g_free(quoted);
2825  }
2826  if (!strcmp(recip, "*")) {
2827    /* nothing */
2828  } else {
2829    if(!strcmp(recip, "%me%")) {
2830      recip = owl_zephyr_get_sender();
2831    }
2832    quoted=owl_text_quote(recip, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2833    g_ptr_array_add(argv, g_strdup("and"));
2834    g_ptr_array_add(argv, g_strdup("recipient"));
2835    g_ptr_array_add(argv, g_strdup_printf("^%s$", quoted));
2836    g_free(quoted);
2837  }
2838
2839  owl_function_punt(argv->len, (const char *const*) argv->pdata, direction);
2840  owl_ptr_array_free(argv, g_free);
2841}
2842
2843void owl_function_punt(int argc, const char *const *argv, int direction)
2844{
2845  owl_filter *f;
2846  GPtrArray *fl;
2847  int i;
2848  fl=owl_global_get_puntlist(&g);
2849
2850  /* first, create the filter */
2851  f = owl_filter_new("punt-filter", argc, argv);
2852  if (f == NULL) {
2853    owl_function_error("Error creating filter for zpunt");
2854    return;
2855  }
2856
2857  /* Check for an identical filter */
2858  for (i = 0; i < fl->len; i++) {
2859    if (owl_filter_equiv(f, fl->pdata[i])) {
2860      owl_function_debugmsg("found an equivalent punt filter");
2861      /* if we're punting, then just silently bow out on this duplicate */
2862      if (direction==0) {
2863        owl_filter_delete(f);
2864        return;
2865      }
2866
2867      /* if we're unpunting, then remove this filter from the puntlist */
2868      if (direction==1) {
2869        owl_filter_delete(g_ptr_array_remove_index(fl, i));
2870        owl_filter_delete(f);
2871        return;
2872      }
2873    }
2874  }
2875
2876  if (direction == 0) {
2877    owl_function_debugmsg("punting");
2878    /* If we're punting, add the filter to the global punt list */
2879    g_ptr_array_add(fl, f);
2880  } else if (direction == 1) {
2881    owl_function_makemsg("No matching punt filter");
2882 }
2883}
2884
2885void owl_function_show_keymaps(void)
2886{
2887  GPtrArray *l;
2888  owl_fmtext fm;
2889  const owl_keymap *km;
2890  const owl_keyhandler *kh;
2891  int i;
2892  const char *kmname;
2893
2894  kh = owl_global_get_keyhandler(&g);
2895  owl_fmtext_init_null(&fm);
2896  owl_fmtext_append_bold(&fm, "Keymaps:   ");
2897  owl_fmtext_append_normal(&fm, "(use 'show keymap <name>' for details)\n");
2898  l = owl_keyhandler_get_keymap_names(kh);
2899  owl_fmtext_append_list(&fm, l, "\n", owl_function_keymap_summary);
2900  owl_fmtext_append_normal(&fm, "\n");
2901
2902  for (i = 0; i < l->len; i++) {
2903    kmname = l->pdata[i];
2904    km = owl_keyhandler_get_keymap(kh, kmname);
2905    owl_fmtext_append_bold(&fm, "\n\n----------------------------------------------------------------------------------------------------\n\n");
2906    owl_keymap_get_details(km, &fm, 0);
2907  }
2908  owl_fmtext_append_normal(&fm, "\n");
2909 
2910  owl_function_popless_fmtext(&fm);
2911  owl_ptr_array_free(l, g_free);
2912  owl_fmtext_cleanup(&fm);
2913}
2914
2915CALLER_OWN char *owl_function_keymap_summary(const char *name)
2916{
2917  const owl_keymap *km
2918    = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
2919  if (km) return owl_keymap_summary(km);
2920  else return(NULL);
2921}
2922
2923/* TODO: implement for real */
2924void owl_function_show_keymap(const char *name)
2925{
2926  owl_fmtext fm;
2927  const owl_keymap *km;
2928
2929  owl_fmtext_init_null(&fm);
2930  km = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
2931  if (km) {
2932    owl_keymap_get_details(km, &fm, 1);
2933  } else {
2934    owl_fmtext_append_normal(&fm, "No such keymap...\n");
2935  } 
2936  owl_function_popless_fmtext(&fm);
2937  owl_fmtext_cleanup(&fm);
2938}
2939
2940void owl_function_help_for_command(const char *cmdname)
2941{
2942  owl_fmtext fm;
2943
2944  owl_fmtext_init_null(&fm);
2945  owl_cmd_get_help(owl_global_get_cmddict(&g), cmdname, &fm);
2946  owl_function_popless_fmtext(&fm); 
2947  owl_fmtext_cleanup(&fm);
2948}
2949
2950void owl_function_set_search(const char *string)
2951{
2952  owl_regex re;
2953
2954  if (string && owl_regex_create_quoted(&re, string) == 0) {
2955    owl_global_set_search_re(&g, &re);
2956    owl_regex_cleanup(&re);
2957  } else {
2958    owl_global_set_search_re(&g, NULL);
2959  }
2960}
2961
2962void owl_function_search_helper(int consider_current, int direction)
2963{
2964  /* move to a message that contains the string.  If direction is
2965   * OWL_DIRECTION_DOWNWARDS then search fowards, if direction is
2966   * OWL_DIRECTION_UPWARDS then search backwards.
2967   *
2968   * If consider_current is true then it will stay on the
2969   * current message if it contains the string.
2970   */
2971
2972  const owl_view *v;
2973  int viewsize, i, curmsg, start;
2974  owl_message *m;
2975
2976  v=owl_global_get_current_view(&g);
2977  viewsize=owl_view_get_size(v);
2978  curmsg=owl_global_get_curmsg(&g);
2979 
2980  if (viewsize==0) {
2981    owl_function_makemsg("No messages present");
2982    return;
2983  }
2984
2985  if (consider_current) {
2986    start=curmsg;
2987  } else if (direction==OWL_DIRECTION_DOWNWARDS) {
2988    start=curmsg+1;
2989  } else {
2990    start=curmsg-1;
2991  }
2992
2993  /* bounds check */
2994  if (start>=viewsize || start<0) {
2995    owl_function_makemsg("No further matches found");
2996    return;
2997  }
2998
2999  for (i=start; i<viewsize && i>=0;) {
3000    m=owl_view_get_element(v, i);
3001    if (owl_message_search(m, owl_global_get_search_re(&g))) {
3002      owl_global_set_curmsg(&g, i);
3003      owl_function_calculate_topmsg(direction);
3004      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3005      if (direction==OWL_DIRECTION_DOWNWARDS) {
3006        owl_global_set_direction_downwards(&g);
3007      } else {
3008        owl_global_set_direction_upwards(&g);
3009      }
3010      return;
3011    }
3012    if (direction==OWL_DIRECTION_DOWNWARDS) {
3013      i++;
3014    } else {
3015      i--;
3016    }
3017    if (owl_global_take_interrupt(&g)) {
3018      owl_function_makemsg("Search interrupted!");
3019      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3020      return;
3021    }
3022  }
3023  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3024  owl_function_makemsg("No matches found");
3025}
3026
3027/* strips formatting from ztext and returns the unformatted text.
3028 * caller is responsible for freeing. */
3029CALLER_OWN char *owl_function_ztext_stylestrip(const char *zt)
3030{
3031  owl_fmtext fm;
3032  char *plaintext;
3033
3034  owl_fmtext_init_null(&fm);
3035  owl_fmtext_append_ztext(&fm, zt);
3036  plaintext = owl_fmtext_print_plain(&fm);
3037  owl_fmtext_cleanup(&fm);
3038  return(plaintext);
3039}
3040
3041/* Popup a buddylisting.  If filename is NULL use the default .anyone */
3042void owl_function_buddylist(int aim, int zephyr, const char *filename)
3043{
3044  int i, j, idle;
3045  int interrupted = 0;
3046  owl_fmtext fm;
3047  const owl_buddylist *bl;
3048  const owl_buddy *b;
3049  char *timestr;
3050#ifdef HAVE_LIBZEPHYR
3051  int x;
3052  GPtrArray *anyone;
3053  const char *user;
3054  char *tmp;
3055  ZLocations_t location[200];
3056  int numlocs, ret;
3057#endif
3058
3059  owl_fmtext_init_null(&fm);
3060
3061  /* AIM first */
3062  if (aim && owl_global_is_aimloggedin(&g)) {
3063    bl=owl_global_get_buddylist(&g);
3064
3065    owl_fmtext_append_bold(&fm, "AIM users logged in:\n");
3066    /* we're assuming AIM for now */
3067    j=owl_buddylist_get_size(bl);
3068    for (i=0; i<j; i++) {
3069      b=owl_buddylist_get_buddy_n(bl, i);
3070      idle=owl_buddy_get_idle_time(b);
3071      if (idle!=0) {
3072        timestr=owl_util_minutes_to_timestr(idle);
3073      } else {
3074        timestr=g_strdup("");
3075      }
3076      owl_fmtext_appendf_normal(&fm, "  %-20.20s %-12.12s\n", owl_buddy_get_name(b), timestr);
3077      g_free(timestr);
3078    }
3079  }
3080
3081#ifdef HAVE_LIBZEPHYR
3082  if (zephyr) {
3083    if(!owl_global_is_havezephyr(&g)) {
3084      owl_function_error("Zephyr currently not available.");
3085    } else {
3086      owl_fmtext_append_bold(&fm, "Zephyr users logged in:\n");
3087      anyone = owl_zephyr_get_anyone_list(filename);
3088      if (anyone == NULL) {
3089        if (errno == ENOENT) {
3090          owl_fmtext_append_normal(&fm, " You have not added any zephyr buddies.  Use the\n");
3091          owl_fmtext_append_normal(&fm, " command ':addbuddy zephyr ");
3092          owl_fmtext_append_bold(  &fm, "<username>");
3093          owl_fmtext_append_normal(&fm, "'.\n");
3094        } else {
3095          owl_fmtext_append_normal(&fm, " Could not read zephyr buddies from the .anyone file.\n");
3096        }
3097      } else {
3098        for (i = 0; i < anyone->len; i++) {
3099          user = anyone->pdata[i];
3100          ret=ZLocateUser(zstr(user), &numlocs, ZAUTH);
3101
3102          if (owl_global_take_interrupt(&g)) {
3103            interrupted = 1;
3104            owl_function_makemsg("Interrupted!");
3105            break;
3106          }
3107
3108          if (ret!=ZERR_NONE) {
3109            owl_function_error("Error getting location for %s", user);
3110            continue;
3111          }
3112
3113          numlocs=200;
3114          ret=ZGetLocations(location, &numlocs);
3115          if (ret==0) {
3116            for (x=0; x<numlocs; x++) {
3117              tmp=short_zuser(user);
3118              owl_fmtext_appendf_normal(&fm, "  %-10.10s %-24.24s %-12.12s  %20.20s\n",
3119                                        tmp,
3120                                        location[x].host,
3121                                        location[x].tty,
3122                                        location[x].time);
3123              g_free(tmp);
3124            }
3125            if (numlocs>=200) {
3126              owl_fmtext_append_normal(&fm, "  Too many locations found for this user, truncating.\n");
3127            }
3128          }
3129        }
3130      }
3131      owl_ptr_array_free(anyone, g_free);
3132    }
3133  }
3134#endif
3135
3136  if (aim && zephyr) {
3137    if (owl_perlconfig_is_function("BarnOwl::Hooks::_get_blist")) {
3138      char * perlblist = owl_perlconfig_execute("BarnOwl::Hooks::_get_blist()");
3139      if (perlblist) {
3140        owl_fmtext_append_ztext(&fm, perlblist);
3141        g_free(perlblist);
3142      }
3143    }
3144  }
3145
3146  if(!interrupted) {
3147    owl_function_popless_fmtext(&fm);
3148  }
3149  owl_fmtext_cleanup(&fm);
3150}
3151
3152/* Dump messages in the current view to the file 'filename'. */
3153void owl_function_dump(const char *filename) 
3154{
3155  int i, j;
3156  owl_message *m;
3157  const owl_view *v;
3158  FILE *file;
3159  char *plaintext;
3160
3161  v=owl_global_get_current_view(&g);
3162
3163  /* in the future make it ask yes/no */
3164  /*
3165  ret=stat(filename, &sbuf);
3166  if (!ret) {
3167    ret=owl_function_askyesno("File exists, continue? [Y/n]");
3168    if (!ret) return;
3169  }
3170  */
3171
3172  file=fopen(filename, "w");
3173  if (!file) {
3174    owl_function_error("Error opening file");
3175    return;
3176  }
3177
3178  j=owl_view_get_size(v);
3179  for (i=0; i<j; i++) {
3180    m=owl_view_get_element(v, i);
3181    plaintext = owl_strip_format_chars(owl_message_get_text(m));
3182    if (plaintext) {
3183      fputs(plaintext, file);
3184      g_free(plaintext);
3185    }
3186  }
3187  fclose(file);
3188  owl_function_makemsg("Messages dumped to %s", filename);
3189}
3190
3191void owl_function_do_newmsgproc(void)
3192{
3193  if (owl_global_get_newmsgproc(&g) && strcmp(owl_global_get_newmsgproc(&g), "")) {
3194    /* if there's a process out there, we need to check on it */
3195    if (owl_global_get_newmsgproc_pid(&g)) {
3196      owl_function_debugmsg("Checking on newmsgproc pid==%i", owl_global_get_newmsgproc_pid(&g));
3197      owl_function_debugmsg("Waitpid return is %i", waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG));
3198      waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG);
3199      if (waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG)==-1) {
3200        /* it exited */
3201        owl_global_set_newmsgproc_pid(&g, 0);
3202        owl_function_debugmsg("newmsgproc exited");
3203      } else {
3204        owl_function_debugmsg("newmsgproc did not exit");
3205      }
3206    }
3207   
3208    /* if it exited, spawn a new one */
3209    if (owl_global_get_newmsgproc_pid(&g)==0) {
3210      int myargc;
3211      char **argv = owl_parseline(owl_global_get_newmsgproc(&g), &myargc);
3212      if (myargc < 0) {
3213        owl_function_debugmsg("Could not parse newmsgproc '%s': unbalanced quotes?",
3214                              owl_global_get_newmsgproc(&g));
3215      } else if (myargc > 0) {
3216        /* Spawn the child. */
3217        pid_t pid;
3218        GError *error = NULL;
3219        owl_function_debugmsg("About to exec \"%s\" with %d arguments", argv[0], myargc);
3220        if (g_spawn_async(NULL, argv, NULL,
3221                          G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD,
3222                          NULL, NULL, &pid, &error)) {
3223          owl_global_set_newmsgproc_pid(&g, pid);
3224          owl_function_debugmsg("I'm the parent and I started a new newmsgproc with pid %i", pid);
3225        } else {
3226          owl_function_debugmsg("Cannot run newmsgproc '%s': %s",
3227                                owl_global_get_newmsgproc(&g), error->message);
3228          g_error_free(error);
3229        }
3230      }
3231      g_strfreev(argv);
3232    }
3233  }
3234}
3235
3236/* print the xterm escape sequence to raise the window */
3237void owl_function_xterm_raise(void)
3238{
3239  printf("\033[5t");
3240}
3241
3242/* print the xterm escape sequence to deiconify the window */
3243void owl_function_xterm_deiconify(void)
3244{
3245  printf("\033[1t");
3246}
3247
3248/* Add the specified command to the startup file.  Eventually this
3249 * should be clever, and rewriting settings that will obviosly
3250 * override earlier settings with 'set' 'bindkey' and 'alias'
3251 * commands.  For now though we just remove any line that would
3252 * duplicate this one and then append this line to the end of
3253 * startupfile.
3254 */
3255void owl_function_addstartup(const char *buff)
3256{
3257  FILE *file;
3258  const char *filename;
3259
3260  filename=owl_global_get_startupfile(&g);
3261
3262  /* delete earlier copies, if the file exists */
3263  if (g_file_test(filename, G_FILE_TEST_EXISTS))
3264    owl_util_file_deleteline(filename, buff, 1);
3265
3266  file=fopen(filename, "a");
3267  if (!file) {
3268    owl_function_error("Error opening startupfile for new command");
3269    return;
3270  }
3271
3272  /* add this line */
3273  fprintf(file, "%s\n", buff);
3274
3275  fclose(file);
3276}
3277
3278/* Remove the specified command from the startup file. */
3279void owl_function_delstartup(const char *buff)
3280{
3281  const char *filename;
3282  filename=owl_global_get_startupfile(&g);
3283  owl_util_file_deleteline(filename, buff, 1);
3284}
3285
3286/* Execute owl commands from the given filename.  If the filename
3287 * is NULL, use the default owl startup commands file.
3288 */
3289void owl_function_source(const char *filename)
3290{
3291  char *path;
3292  FILE *file;
3293  char *s = NULL;
3294  int fail_silent = 0;
3295
3296  if (!filename) {
3297    fail_silent = 1;
3298    path = g_strdup(owl_global_get_startupfile(&g));
3299  } else {
3300    path = owl_util_makepath(filename);
3301  }
3302  file = fopen(path, "r");
3303  g_free(path);
3304  if (!file) {
3305    if (!fail_silent) {
3306      owl_function_error("Error opening file: %s", filename);
3307    }
3308    return;
3309  }
3310  while (owl_getline_chomp(&s, file)) {
3311    if (s[0] == '\0' || s[0] == '#')
3312      continue;
3313    owl_function_command_norv(s);
3314  }
3315
3316  g_free(s);
3317  fclose(file);
3318}
3319
3320void owl_function_change_style(owl_view *v, const char *stylename)
3321{
3322  const owl_style *s;
3323
3324  s=owl_global_get_style_by_name(&g, stylename);
3325  if (!s) {
3326    owl_function_error("No style named %s", stylename);
3327    return;
3328  }
3329  owl_view_set_style(v, s);
3330  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
3331  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
3332  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3333}
3334
3335void owl_function_toggleoneline(void)
3336{
3337  owl_view *v;
3338  const owl_style *s;
3339
3340  v=owl_global_get_current_view(&g);
3341  s=owl_view_get_style(v);
3342
3343  if (!owl_style_matches_name(s, "oneline")) {
3344    owl_function_change_style(v, "oneline");
3345  } else {
3346    owl_function_change_style(v, owl_global_get_default_style(&g));
3347  }
3348
3349  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
3350  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
3351  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3352}
3353
3354void G_GNUC_PRINTF(1, 2) owl_function_error(const char *fmt, ...)
3355{
3356  static int in_error = 0;
3357  va_list ap;
3358  char *buff;
3359  const char *nl;
3360
3361  if (++in_error > 2) {
3362    /* More than two nested errors, bail immediately. */
3363    in_error--;
3364    return;
3365  }
3366
3367  va_start(ap, fmt);
3368  buff = g_strdup_vprintf(fmt, ap);
3369  va_end(ap);
3370
3371  owl_function_debugmsg("ERROR: %s", buff);
3372  owl_function_log_err(buff);
3373
3374  nl = strchr(buff, '\n');
3375
3376  /*
3377    Showing admin messages triggers a lot of code. If we have a
3378    recursive error call, that's the most likely candidate, so
3379    suppress the call in that case, to try to avoid infinite looping.
3380  */
3381
3382  if(nl && *(nl + 1) && in_error == 1) {
3383    /* Multiline error */
3384    owl_function_adminmsg("ERROR", buff);
3385  } else {
3386    owl_function_makemsg("[Error] %s", buff);
3387  }
3388
3389  g_free(buff);
3390
3391  in_error--;
3392}
3393
3394void owl_function_log_err(const char *string)
3395{
3396  char *date;
3397  time_t now;
3398  char *buff;
3399
3400  now=time(NULL);
3401  date=g_strdup(ctime(&now));
3402  date[strlen(date)-1]='\0';
3403
3404  buff = g_strdup_printf("%s %s", date, string);
3405
3406  owl_errqueue_append_err(owl_global_get_errqueue(&g), buff);
3407
3408  g_free(buff);
3409  g_free(date);
3410}
3411
3412void owl_function_showerrs(void)
3413{
3414  owl_fmtext fm;
3415
3416  owl_fmtext_init_null(&fm);
3417  owl_fmtext_append_normal(&fm, "Errors:\n\n");
3418  owl_errqueue_to_fmtext(owl_global_get_errqueue(&g), &fm);
3419  owl_function_popless_fmtext(&fm);
3420}
3421
3422void G_GNUC_PRINTF(1, 2) owl_function_makemsg(const char *fmt, ...)
3423{
3424  va_list ap;
3425  char *str;
3426
3427  va_start(ap, fmt);
3428  str = g_strdup_vprintf(fmt, ap);
3429  va_end(ap);
3430
3431  owl_function_debugmsg("makemsg: %s", str);
3432  owl_msgwin_set_text_nocopy(&g.msgwin, str);
3433}
3434
3435/* get locations for everyone in .anyone.  If 'notify' is '1' then
3436 * send a pseudo login or logout message for everyone not in sync with
3437 * the global zephyr buddy list.  The list is updated regardless of
3438 * the status of 'notify'.
3439 */
3440void owl_function_zephyr_buddy_check(int notify)
3441{
3442#ifdef HAVE_LIBZEPHYR
3443  int i;
3444  GPtrArray *anyone;
3445  GList **zaldlist;
3446  GList *zaldptr;
3447  ZAsyncLocateData_t *zald;
3448  const char *user;
3449
3450  if (!owl_global_is_havezephyr(&g)) return;
3451  owl_global_set_pseudologin_notify(&g, notify);
3452  zaldlist = owl_global_get_zaldlist(&g);
3453
3454  /* Clear the existing ZALDs first. */
3455  zaldptr = g_list_first(*zaldlist);
3456  while (zaldptr) {
3457    ZFreeALD(zaldptr->data);
3458    g_free(zaldptr->data);
3459    zaldptr = g_list_next(zaldptr);
3460  }
3461  g_list_free(*zaldlist);
3462  *zaldlist = NULL;
3463
3464  anyone = owl_zephyr_get_anyone_list(NULL);
3465  for (i = 0; i < anyone->len; i++) {
3466    user = anyone->pdata[i];
3467    zald = g_new(ZAsyncLocateData_t, 1);
3468    if (ZRequestLocations(zstr(user), zald, UNACKED, ZAUTH) == ZERR_NONE) {
3469      *zaldlist = g_list_append(*zaldlist, zald);
3470    } else {
3471      g_free(zald);
3472    }
3473  }
3474
3475  owl_ptr_array_free(anyone, g_free);
3476#endif
3477}
3478
3479void owl_function_aimsearch_results(const char *email, GPtrArray *namelist)
3480{
3481  owl_fmtext fm;
3482  int i;
3483
3484  owl_fmtext_init_null(&fm);
3485  owl_fmtext_append_normal(&fm, "AIM screennames associated with ");
3486  owl_fmtext_append_normal(&fm, email);
3487  owl_fmtext_append_normal(&fm, ":\n");
3488
3489  for (i = 0; i < namelist->len; i++) {
3490    owl_fmtext_append_normal(&fm, "  ");
3491    owl_fmtext_append_normal(&fm, namelist->pdata[i]);
3492    owl_fmtext_append_normal(&fm, "\n");
3493  }
3494
3495  owl_function_popless_fmtext(&fm);
3496  owl_fmtext_cleanup(&fm);
3497}
3498
3499int owl_function_get_color_count(void)
3500{
3501     return COLORS;
3502}
3503
3504void _owl_function_mark_message(const owl_message *m)
3505{
3506  if (m) {
3507    owl_global_set_markedmsgid(&g, owl_message_get_id(m));
3508    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3509  }
3510}
3511
3512void owl_function_mark_message(void)
3513{
3514  const owl_message *m;
3515  const owl_view *v;
3516
3517  v=owl_global_get_current_view(&g);
3518
3519  /* bail if there's no current message */
3520  if (owl_view_get_size(v) < 1) {
3521    owl_function_error("No messages to mark");
3522    return;
3523  }
3524
3525  /* mark the message */
3526  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
3527  _owl_function_mark_message(m);
3528  owl_function_makemsg("Mark set");
3529}
3530
3531void owl_function_swap_cur_marked(void)
3532{
3533  int marked_id;
3534  const owl_message *m;
3535  const owl_view *v;
3536
3537  marked_id=owl_global_get_markedmsgid(&g);
3538  if (marked_id == -1) {
3539    owl_function_error("Mark not set.");
3540    return;
3541  }
3542
3543  v=owl_global_get_current_view(&g);
3544  /* bail if there's no current message */
3545  if (owl_view_get_size(v) < 1) {
3546    return;
3547  }
3548
3549  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
3550  _owl_function_mark_message(m);
3551  owl_global_set_curmsg(&g, owl_view_get_nearest_to_msgid(v, marked_id));
3552  owl_function_calculate_topmsg(OWL_DIRECTION_NONE);
3553  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3554  owl_global_set_direction_downwards(&g);
3555}
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