source: functions.c @ 737b8f1

release-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 737b8f1 was dca3b27, checked in by Karl Ramm <kcr@1ts.org>, 12 years ago
Make owl_zephyr_zlocate return a dynamically allocated result (and cleanup it and owl_function_zlocate)
  • Property mode set to 100644
File size: 98.6 KB
Line 
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
15char *owl_function_command(const char *cmdbuff)
16{
17  owl_function_debugmsg("executing command: %s", cmdbuff);
18  return owl_cmddict_execute(owl_global_get_cmddict(&g), 
19                             owl_global_get_context(&g), cmdbuff);
20}
21
22char *owl_function_command_argv(const char *const *argv, int argc)
23{
24  return owl_cmddict_execute_argv(owl_global_get_cmddict(&g),
25                                  owl_global_get_context(&g),
26                                  argv, argc);
27}
28
29void owl_function_command_norv(const char *cmdbuff)
30{
31  char *rv;
32  rv=owl_function_command(cmdbuff);
33  if (rv) owl_free(rv);
34}
35
36void owl_function_command_alias(const char *alias_from, const char *alias_to)
37{
38  owl_cmddict_add_alias(owl_global_get_cmddict(&g), alias_from, alias_to);
39}
40
41const owl_cmd *owl_function_get_cmd(const char *name)
42{
43  return owl_cmddict_find(owl_global_get_cmddict(&g), name);
44}
45
46void owl_function_show_commands(void)
47{
48  owl_list l;
49  owl_fmtext fm;
50
51  owl_fmtext_init_null(&fm);
52  owl_fmtext_append_bold(&fm, "Commands:  ");
53  owl_fmtext_append_normal(&fm, "(use 'show command <name>' for details)\n");
54  owl_cmddict_get_names(owl_global_get_cmddict(&g), &l);
55  owl_fmtext_append_list(&fm, &l, "\n", owl_function_cmd_describe);
56  owl_fmtext_append_normal(&fm, "\n");
57  owl_function_popless_fmtext(&fm);
58  owl_cmddict_namelist_free(&l);
59  owl_fmtext_free(&fm);
60}
61
62void owl_function_show_view(const char *viewname)
63{
64  const owl_view *v;
65  owl_fmtext fm;
66
67  /* we only have the one view right now */
68  v=owl_global_get_current_view(&g);
69  if (viewname && strcmp(viewname, owl_view_get_name(v))) {
70    owl_function_error("No view named '%s'", viewname);
71    return;
72  }
73
74  owl_fmtext_init_null(&fm);
75  owl_view_to_fmtext(v, &fm);
76  owl_function_popless_fmtext(&fm);
77  owl_fmtext_free(&fm);
78}
79
80void owl_function_show_styles(void) {
81  owl_list l;
82  owl_fmtext fm;
83
84  owl_fmtext_init_null(&fm);
85  owl_fmtext_append_bold(&fm, "Styles:\n");
86  owl_global_get_style_names(&g, &l);
87  owl_fmtext_append_list(&fm, &l, "\n", owl_function_style_describe);
88  owl_fmtext_append_normal(&fm, "\n");
89  owl_function_popless_fmtext(&fm);
90  owl_list_free_all(&l, owl_free);
91  owl_fmtext_free(&fm);
92}
93
94char *owl_function_style_describe(const char *name) {
95  const char *desc;
96  char *s;
97  const owl_style *style;
98  style = owl_global_get_style_by_name(&g, name);
99  if (style) {
100    desc = owl_style_get_description(style);
101  } else {
102    desc = "???";
103  }
104  s = owl_sprintf("%-20s - %s%s", name, 
105                  0==owl_style_validate(style)?"":"[INVALID] ",
106                  desc);
107  return s;
108}
109
110char *owl_function_cmd_describe(const char *name)
111{
112  const owl_cmd *cmd = owl_cmddict_find(owl_global_get_cmddict(&g), name);
113  if (cmd) return owl_cmd_describe(cmd);
114  else return(NULL);
115}
116
117void owl_function_show_command(const char *name)
118{
119  owl_function_help_for_command(name);
120}
121
122void owl_function_show_license(void)
123{
124  const char *text;
125
126  text=""
127    "barnowl version " OWL_VERSION_STRING "\n"
128    "Copyright (c) 2006-2009 The BarnOwl Developers. All rights reserved.\n"
129    "Copyright (c) 2004 James Kretchmar. All rights reserved.\n"
130    "\n"
131    "Redistribution and use in source and binary forms, with or without\n"
132    "modification, are permitted provided that the following conditions are\n"
133    "met:\n"
134    "\n"
135    "   * Redistributions of source code must retain the above copyright\n"
136    "     notice, this list of conditions and the following disclaimer.\n"
137    "\n"
138    "   * Redistributions in binary form must reproduce the above copyright\n"
139    "     notice, this list of conditions and the following disclaimer in\n"
140    "     the documentation and/or other materials provided with the\n"
141    "     distribution.\n"
142    "\n"
143    "   * Redistributions in any form must be accompanied by information on\n"
144    "     how to obtain complete source code for the Owl software and any\n"
145    "     accompanying software that uses the Owl software. The source code\n"
146    "     must either be included in the distribution or be available for no\n"
147    "     more than the cost of distribution plus a nominal fee, and must be\n"
148    "     freely redistributable under reasonable conditions. For an\n"
149    "     executable file, complete source code means the source code for\n"
150    "     all modules it contains. It does not include source code for\n"
151    "     modules or files that typically accompany the major components of\n"
152    "     the operating system on which the executable file runs.\n"
153    "\n"
154    "THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR\n"
155    "IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n"
156    "WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR\n"
157    "NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE\n"
158    "LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n"
159    "CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n"
160    "SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n"
161    "BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n"
162    "WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n"
163    "OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n"
164    "IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n";
165  owl_function_popless_text(text);
166}
167
168void owl_function_show_quickstart(void)
169{
170    const char *message =
171    "Move between messages with the arrow keys, and press 'r' to reply.\n"
172    "For more info, press 'h' or visit http://barnowl.mit.edu/\n\n"
173#ifdef HAVE_LIBZEPHYR
174    "@b(Zephyr:)\n"
175    "To send a message to a user, type ':zwrite @b(username)'. You can also\n"
176    "press 'z' and then type the username. To subscribe to a class, type\n"
177    "':sub @b(class)', and then type ':zwrite -c @b(class)' to send.\n\n"
178#endif
179    "@b(AIM:)\n"
180    "Log in to AIM with ':aimlogin @b(screenname)'. Use ':aimwrite @b(screenname)',\n"
181    "or 'a' and then the screen name, to send someone a message.\n\n"
182    ;
183
184    if (owl_perlconfig_is_function("BarnOwl::Hooks::_get_quickstart")) {
185        char *perlquickstart = owl_perlconfig_execute("BarnOwl::Hooks::_get_quickstart()");
186        if (perlquickstart) {
187            char *result = owl_sprintf("%s%s", message, perlquickstart);
188            owl_function_adminmsg("BarnOwl Quickstart", result);
189            owl_free(result);
190            owl_free(perlquickstart);
191            return;
192        }
193    }
194    owl_function_adminmsg("BarnOwl Quickstart", message);
195}
196
197
198/* Create an admin message, append it to the global list of messages
199 * and redisplay if necessary.
200 */
201void owl_function_adminmsg(const char *header, const char *body)
202{
203  owl_message *m;
204
205  m=owl_malloc(sizeof(owl_message));
206  owl_message_create_admin(m, header, body);
207 
208  /* add it to the global list and current view */
209  owl_messagelist_append_element(owl_global_get_msglist(&g), m);
210  owl_view_consider_message(owl_global_get_current_view(&g), m);
211
212  /* do followlast if necessary */
213  if (owl_global_should_followlast(&g)) owl_function_lastmsg_noredisplay();
214
215  /* redisplay etc. */
216  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
217  if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
218    owl_popwin_refresh(owl_global_get_popwin(&g));
219  }
220  wnoutrefresh(owl_global_get_curs_recwin(&g));
221  owl_global_set_needrefresh(&g);
222}
223
224/* Create an outgoing zephyr message and return a pointer to it.  Does
225 * not put it on the global queue, use owl_global_messagequeue_addmsg() for
226 * that.
227 */
228owl_message *owl_function_make_outgoing_zephyr(const char *body, const char *zwriteline, const char *zsig)
229{
230  owl_message *m;
231  owl_zwrite zw;
232
233  owl_zwrite_create_from_line(&zw, zwriteline);
234  owl_zwrite_set_zsig(&zw, zsig);
235
236  /* create the message */
237  m=owl_malloc(sizeof(owl_message));
238 
239  owl_message_create_from_zwrite(m, &zw, body);
240  owl_zwrite_free(&zw);
241
242  return(m);
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 */
250owl_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=owl_malloc(sizeof(owl_message));
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 */
271owl_message *owl_function_make_outgoing_loopback(const char *body)
272{
273  owl_message *m;
274
275  /* create the message */
276  m=owl_malloc(sizeof(owl_message));
277  owl_message_create_loopback(m, body);
278  owl_message_set_direction_out(m);
279
280  return(m);
281}
282
283void owl_function_zwrite_setup(const char *line)
284{
285  owl_editwin *e;
286  char buff[1024];
287  owl_zwrite z;
288  int ret;
289
290  /* check the arguments */
291  ret=owl_zwrite_create_from_line(&z, line);
292  if (ret) {
293    owl_function_error("Error in zwrite arguments");
294    owl_zwrite_free(&z);
295    return;
296  }
297
298  /* send a ping if necessary */
299  if (owl_global_is_txping(&g)) {
300    owl_zwrite_send_ping(&z);
301  }
302  owl_zwrite_free(&z);
303
304  /* create and setup the editwin */
305  e=owl_global_get_typwin(&g);
306  owl_editwin_new_style(e, OWL_EDITWIN_STYLE_MULTILINE, owl_global_get_msg_history(&g));
307
308  if (!owl_global_get_lockout_ctrld(&g)) {
309    owl_function_makemsg("Type your zephyr below.  End with ^D or a dot on a line by itself.  ^C will quit.");
310  } else {
311    owl_function_makemsg("Type your zephyr below.  End with a dot on a line by itself.  ^C will quit.");
312  }
313
314  owl_editwin_clear(e);
315  owl_editwin_set_dotsend(e);
316  strcpy(buff, "----> ");
317  strncat(buff, line, 1016);
318  strcat(buff, "\n");
319  owl_editwin_set_locktext(e, buff);
320
321  /* make it active */
322  owl_global_set_typwin_active(&g);
323
324  owl_global_set_buffercommand(&g, line);
325  owl_global_set_buffercallback(&g, &owl_callback_zwrite);
326}
327
328void owl_function_aimwrite_setup(const char *line)
329{
330  owl_editwin *e;
331  char buff[1024];
332
333  /* check the arguments */
334
335  /* create and setup the editwin */
336  e=owl_global_get_typwin(&g);
337  owl_editwin_new_style(e, OWL_EDITWIN_STYLE_MULTILINE, owl_global_get_msg_history(&g));
338
339  if (!owl_global_get_lockout_ctrld(&g)) {
340    owl_function_makemsg("Type your message below.  End with ^D or a dot on a line by itself.  ^C will quit.");
341  } else {
342    owl_function_makemsg("Type your message below.  End with a dot on a line by itself.  ^C will quit.");
343  }
344
345  owl_editwin_clear(e);
346  owl_editwin_set_dotsend(e);
347  strcpy(buff, "----> ");
348  strcat(buff, line);
349  strcat(buff, "\n");
350  owl_editwin_set_locktext(e, buff);
351
352  /* make it active */
353  owl_global_set_typwin_active(&g);
354
355  owl_global_set_buffercommand(&g, line);
356  owl_global_set_buffercallback(&g, &owl_callback_aimwrite);
357}
358
359void owl_function_loopwrite_setup(void)
360{
361  owl_editwin *e;
362
363  /* create and setup the editwin */
364  e=owl_global_get_typwin(&g);
365  owl_editwin_new_style(e, OWL_EDITWIN_STYLE_MULTILINE, owl_global_get_msg_history(&g));
366
367  if (!owl_global_get_lockout_ctrld(&g)) {
368    owl_function_makemsg("Type your message below.  End with ^D or a dot on a line by itself.  ^C will quit.");
369  } else {
370    owl_function_makemsg("Type your message below.  End with a dot on a line by itself.  ^C will quit.");
371  }
372
373  owl_editwin_clear(e);
374  owl_editwin_set_dotsend(e);
375  owl_editwin_set_locktext(e, "----> loopwrite\n");
376
377  /* make it active */
378  owl_global_set_typwin_active(&g);
379
380  owl_global_set_buffercommand(&g, "loopwrite");
381  owl_global_set_buffercallback(&g, &owl_callback_loopwrite);
382}
383
384void owl_callback_zwrite(owl_editwin *e) {
385  owl_function_zwrite(owl_editwin_get_command(e),
386                      owl_editwin_get_text(e));
387}
388
389/* send, log and display an outgoing zephyr.  If 'msg' is NULL
390 * the message is expected to be set from the zwrite line itself
391 */
392void owl_function_zwrite(const char *line, const char *msg)
393{
394  owl_zwrite z;
395  const char *mymsg;
396  owl_message *m;
397
398  if(!strncmp(line, "zcrypt", strlen("zcrypt"))) {
399    owl_function_zcrypt(line, msg);
400    return;
401  }
402
403  /* create the zwrite and send the message */
404  owl_zwrite_create_from_line(&z, line);
405  owl_zwrite_populate_zsig(&z);
406  if (msg) {
407    owl_zwrite_set_message(&z, msg);
408  }
409  owl_zwrite_send_message(&z);
410  owl_function_makemsg("Waiting for ack...");
411
412  /* If it's personal */
413  if (owl_zwrite_is_personal(&z)) {
414    /* create the outgoing message */
415    mymsg=owl_zwrite_get_message(&z);
416    m=owl_function_make_outgoing_zephyr(mymsg, line, owl_zwrite_get_zsig(&z));
417
418    if (m) {
419      owl_global_messagequeue_addmsg(&g, m);
420    } else {
421      owl_function_error("Could not create outgoing zephyr message");
422    }
423  }
424
425  /* free the zwrite */
426  owl_zwrite_free(&z);
427}
428
429/* send, log and display an outgoing zcrypt zephyr.  If 'msg' is NULL
430 * the message is expected to be set from the zwrite line itself
431 */
432void owl_function_zcrypt(const char *line, const char *msg)
433{
434  owl_zwrite z;
435  const char *mymsg;
436  char *cryptmsg;
437  owl_message *m;
438#ifdef OWL_ENABLE_ZCRYPT
439  int ret;
440#endif
441
442  /* create the zwrite and send the message */
443  owl_zwrite_create_from_line(&z, line);
444  owl_zwrite_populate_zsig(&z);
445  if (msg) {
446    owl_zwrite_set_message(&z, msg);
447  }
448
449  mymsg=owl_zwrite_get_message(&z);
450#ifdef OWL_ENABLE_ZCRYPT
451  /* Allocate enough space for the crypted message. For each byte of
452   * the message, the encoded cyphertext will have two bytes. Block
453   * size is 8 bytes of input, or 16 bytes of output, so make sure we
454   * have at least one block worth of space allocated. If the message
455   * is empty, no blocks are sent, but we still allocate one
456   * block. The additional 16 bytes also provide space for the null
457   * terminator, as we will never use all of it for cyphertext.
458   */
459  cryptmsg=owl_malloc((strlen(mymsg)*2)+16);
460  ret=owl_zcrypt_encrypt(cryptmsg, mymsg, owl_zwrite_get_class(&z), owl_zwrite_get_instance(&z));
461  if (ret) {
462    owl_function_error("Error in zcrypt, possibly no key found.  Message not sent.");
463    owl_function_beep();
464    owl_free(cryptmsg);
465    owl_zwrite_free(&z);
466    return;
467  }
468#else
469  cryptmsg=owl_strdup(mymsg);
470#endif
471
472  owl_zwrite_set_message(&z, cryptmsg);
473  owl_zwrite_set_opcode(&z, "crypt");
474   
475  owl_zwrite_send_message(&z);
476  owl_function_makemsg("Waiting for ack...");
477
478  /* If it's personal */
479  if (owl_zwrite_is_personal(&z)) {
480    /* create the outgoing message */
481    mymsg=owl_zwrite_get_message(&z);
482    m=owl_function_make_outgoing_zephyr(mymsg, line, owl_zwrite_get_zsig(&z));
483    if (m) {
484      owl_global_messagequeue_addmsg(&g, m);
485    } else {
486      owl_function_error("Could not create outgoing zephyr message");
487    }
488  }
489
490  /* free the zwrite */
491  owl_free(cryptmsg);
492  owl_zwrite_free(&z);
493}
494
495void owl_callback_aimwrite(owl_editwin *e) {
496  owl_function_aimwrite(owl_editwin_get_command(e),
497                        owl_editwin_get_text(e));
498}
499
500void owl_function_aimwrite(const char *line, const char *msg)
501{
502  int ret;
503  const char *to;
504  char *format_msg;
505  owl_message *m;
506
507  to = line + 9;
508
509  /* make a formatted copy of the message */
510  format_msg=owl_strdup(msg);
511  owl_text_wordunwrap(format_msg);
512 
513  /* send the message */
514  ret=owl_aim_send_im(to, format_msg);
515  if (!ret) {
516    owl_function_makemsg("AIM message sent.");
517  } else {
518    owl_function_error("Could not send AIM message.");
519  }
520
521  /* create the outgoing message */
522  m=owl_function_make_outgoing_aim(msg, to);
523
524  if (m) {
525    owl_global_messagequeue_addmsg(&g, m);
526  } else {
527    owl_function_error("Could not create outgoing AIM message");
528  }
529
530  owl_free(format_msg);
531}
532
533void owl_function_send_aimawymsg(const char *to, const char *msg)
534{
535  int ret;
536  char *format_msg;
537  owl_message *m;
538
539  /* make a formatted copy of the message */
540  format_msg=owl_strdup(msg);
541  owl_text_wordunwrap(format_msg);
542 
543  /* send the message */
544  ret=owl_aim_send_awaymsg(to, format_msg);
545  if (!ret) {
546    /* owl_function_makemsg("AIM message sent."); */
547  } else {
548    owl_function_error("Could not send AIM message.");
549  }
550
551  /* create the message */
552  m=owl_function_make_outgoing_aim(msg, to);
553  if (m) {
554    owl_global_messagequeue_addmsg(&g, m);
555  } else {
556    owl_function_error("Could not create AIM message");
557  }
558  owl_free(format_msg);
559}
560
561void owl_callback_loopwrite(owl_editwin *e) {
562  owl_function_loopwrite(owl_editwin_get_text(e));
563}
564
565void owl_function_loopwrite(const char *msg)
566{
567  owl_message *min, *mout;
568
569  /* create a message and put it on the message queue.  This simulates
570   * an incoming message */
571  min=owl_malloc(sizeof(owl_message));
572  mout=owl_function_make_outgoing_loopback(msg);
573
574  if (owl_global_is_displayoutgoing(&g)) {
575    owl_global_messagequeue_addmsg(&g, mout);
576  } else {
577    owl_message_free(mout);
578  }
579
580  owl_message_create_loopback(min, msg);
581  owl_message_set_direction_in(min);
582  owl_global_messagequeue_addmsg(&g, min);
583
584  /* fake a makemsg */
585  owl_function_makemsg("loopback message sent");
586}
587
588/* If filter is non-null, looks for the next message matching
589 * that filter.  If skip_deleted, skips any deleted messages.
590 * If last_if_none, will stop at the last message in the view
591 * if no matching messages are found.  */
592void owl_function_nextmsg_full(const char *filter, int skip_deleted, int last_if_none)
593{
594  int curmsg, i, viewsize, found;
595  const owl_view *v;
596  const owl_filter *f = NULL;
597  const owl_message *m;
598
599  v=owl_global_get_current_view(&g);
600
601  if (filter) {
602    f=owl_global_get_filter(&g, filter);
603    if (!f) {
604      owl_function_error("No %s filter defined", filter);
605      return;
606    }
607  }
608
609  curmsg=owl_global_get_curmsg(&g);
610  viewsize=owl_view_get_size(v);
611  found=0;
612
613  /* just check to make sure we're in bounds... */
614  if (curmsg>viewsize-1) curmsg=viewsize-1;
615  if (curmsg<0) curmsg=0;
616
617  for (i=curmsg+1; i<viewsize; i++) {
618    m=owl_view_get_element(v, i);
619    if (skip_deleted && owl_message_is_delete(m)) continue;
620    if (f && !owl_filter_message_match(f, m)) continue;
621    found = 1;
622    break;
623  }
624
625  if (i>owl_view_get_size(v)-1) i=owl_view_get_size(v)-1;
626  if (i<0) i=0;
627
628  if (!found) {
629    owl_function_makemsg("already at last%s message%s%s%s",
630                         skip_deleted?" non-deleted":"",
631                         filter?" in ":"", filter?filter:"",
632                         owl_mainwin_is_curmsg_truncated(owl_global_get_mainwin(&g)) ?
633                         ", press Enter to scroll" : "");
634    /* if (!skip_deleted) owl_function_beep(); */
635  }
636
637  if (last_if_none || found) {
638    owl_global_set_curmsg(&g, i);
639    owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
640    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
641    owl_global_set_direction_downwards(&g);
642  }
643}
644
645void owl_function_prevmsg_full(const char *filter, int skip_deleted, int first_if_none)
646{
647  int curmsg, i, found;
648  const owl_view *v;
649  const owl_filter *f = NULL;
650  const owl_message *m;
651
652  v=owl_global_get_current_view(&g);
653
654  if (filter) {
655    f=owl_global_get_filter(&g, filter);
656    if (!f) {
657      owl_function_error("No %s filter defined", filter);
658      return;
659    }
660  }
661
662  curmsg=owl_global_get_curmsg(&g);
663  found=0;
664
665  /* just check to make sure we're in bounds... */
666  if (curmsg<0) curmsg=0;
667
668  for (i=curmsg-1; i>=0; i--) {
669    m=owl_view_get_element(v, i);
670    if (skip_deleted && owl_message_is_delete(m)) continue;
671    if (f && !owl_filter_message_match(f, m)) continue;
672    found = 1;
673    break;
674  }
675
676  if (i<0) i=0;
677
678  if (!found) {
679    owl_function_makemsg("already at first%s message%s%s",
680                         skip_deleted?" non-deleted":"",
681                         filter?" in ":"", filter?filter:"");
682    /* if (!skip_deleted) owl_function_beep(); */
683  }
684
685  if (first_if_none || found) {
686    owl_global_set_curmsg(&g, i);
687    owl_function_calculate_topmsg(OWL_DIRECTION_UPWARDS);
688    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
689    owl_global_set_direction_upwards(&g);
690  }
691}
692
693void owl_function_nextmsg(void)
694{
695  owl_function_nextmsg_full(NULL, 0, 1);
696}
697
698void owl_function_prevmsg(void)
699{
700  owl_function_prevmsg_full(NULL, 0, 1);
701}
702
703void owl_function_nextmsg_notdeleted(void)
704{
705  owl_function_nextmsg_full(NULL, 1, 1);
706}
707
708void owl_function_prevmsg_notdeleted(void)
709{
710  owl_function_prevmsg_full(NULL, 1, 1);
711}
712
713/* if move_after is 1, moves after the delete */
714void owl_function_deletecur(int move_after)
715{
716  int curmsg;
717  owl_view *v;
718
719  v=owl_global_get_current_view(&g);
720
721  /* bail if there's no current message */
722  if (owl_view_get_size(v) < 1) {
723    owl_function_error("No current message to delete");
724    return;
725  }
726
727  /* mark the message for deletion */
728  curmsg=owl_global_get_curmsg(&g);
729  owl_view_delete_element(v, curmsg);
730
731  if (move_after) {
732    /* move the poiner in the appropriate direction
733     * to the next undeleted msg */
734    if (owl_global_get_direction(&g)==OWL_DIRECTION_UPWARDS) {
735      owl_function_prevmsg_notdeleted();
736    } else {
737      owl_function_nextmsg_notdeleted();
738    }
739  }
740}
741
742void owl_function_undeletecur(int move_after)
743{
744  int curmsg;
745  owl_view *v;
746
747  v=owl_global_get_current_view(&g);
748 
749  if (owl_view_get_size(v) < 1) {
750    owl_function_error("No current message to undelete");
751    return;
752  }
753  curmsg=owl_global_get_curmsg(&g);
754
755  owl_view_undelete_element(v, curmsg);
756
757  if (move_after) {
758    if (owl_global_get_direction(&g)==OWL_DIRECTION_UPWARDS) {
759      if (curmsg>0) {
760        owl_function_prevmsg();
761      } else {
762        owl_function_nextmsg();
763      }
764    } else {
765      owl_function_nextmsg();
766    }
767  }
768
769  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
770}
771
772void owl_function_expunge(void)
773{
774  int curmsg;
775  const owl_message *m;
776  owl_messagelist *ml;
777  owl_view *v;
778  int lastmsgid=0;
779
780  curmsg=owl_global_get_curmsg(&g);
781  v=owl_global_get_current_view(&g);
782  ml=owl_global_get_msglist(&g);
783
784  m=owl_view_get_element(v, curmsg);
785  if (m) lastmsgid = owl_message_get_id(m);
786
787  /* expunge the message list */
788  owl_messagelist_expunge(ml);
789
790  /* update all views (we only have one right now) */
791  owl_view_recalculate(v);
792
793  /* find where the new position should be
794     (as close as possible to where we last where) */
795  curmsg = owl_view_get_nearest_to_msgid(v, lastmsgid);
796  if (curmsg>owl_view_get_size(v)-1) curmsg = owl_view_get_size(v)-1;
797  if (curmsg<0) curmsg = 0;
798  owl_global_set_curmsg(&g, curmsg);
799  owl_function_calculate_topmsg(OWL_DIRECTION_NONE);
800  /* if there are no messages set the direction to down in case we
801     delete everything upwards */
802  owl_global_set_direction_downwards(&g);
803 
804  owl_function_makemsg("Messages expunged");
805  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
806}
807
808void owl_function_firstmsg(void)
809{
810  owl_global_set_curmsg(&g, 0);
811  owl_global_set_topmsg(&g, 0);
812  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
813  owl_global_set_direction_downwards(&g);
814}
815
816void owl_function_lastmsg_noredisplay(void)
817{
818  int oldcurmsg, curmsg;
819  const owl_view *v;
820
821  v=owl_global_get_current_view(&g);
822  oldcurmsg=owl_global_get_curmsg(&g);
823  curmsg=owl_view_get_size(v)-1; 
824  if (curmsg<0) curmsg=0;
825  owl_global_set_curmsg(&g, curmsg);
826  if (oldcurmsg < curmsg) {
827    owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
828  } else if (curmsg<owl_view_get_size(v)) {
829    /* If already at the end, blank the screen and move curmsg
830     * past the end of the messages. */
831    owl_global_set_topmsg(&g, curmsg+1);
832    owl_global_set_curmsg(&g, curmsg+1);
833  } 
834  /* owl_mainwin_redisplay(owl_global_get_mainwin(&g)); */
835  owl_global_set_direction_downwards(&g);
836}
837
838void owl_function_lastmsg(void)
839{
840  owl_function_lastmsg_noredisplay();
841  owl_mainwin_redisplay(owl_global_get_mainwin(&g)); 
842}
843
844void owl_function_shift_right(void)
845{
846  owl_global_set_rightshift(&g, owl_global_get_rightshift(&g)+10);
847  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
848  owl_global_set_needrefresh(&g);
849}
850
851void owl_function_shift_left(void)
852{
853  int shift;
854
855  shift=owl_global_get_rightshift(&g);
856  if (shift>=10) {
857    owl_global_set_rightshift(&g, shift-10);
858    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
859    owl_global_set_needrefresh(&g);
860  } else {
861    owl_function_beep();
862    owl_function_makemsg("Already full left");
863  }
864}
865
866void owl_function_unsuball(void)
867{
868  unsuball();
869  owl_function_makemsg("Unsubscribed from all messages.");
870}
871
872
873/* Load zephyr subscriptions from the named 'file' and load zephyr's
874 * default subscriptions as well.  An error message is printed if
875 * 'file' can't be opened or if zephyr reports an error in
876 * subscribing.
877 *
878 * If 'file' is NULL, this look for the default filename
879 * $HOME/.zephyr.subs.  If the file can not be opened in this case
880 * only, no error message is printed.
881 */
882void owl_function_loadsubs(const char *file)
883{
884  int ret, ret2;
885  const char *foo;
886  char *path;
887
888  if (file==NULL) {
889    ret=owl_zephyr_loadsubs(NULL, 0);
890  } else {
891    path = owl_util_makepath(file);
892    ret=owl_zephyr_loadsubs(path, 1);
893    owl_free(path);
894  }
895
896  /* for backwards compatibility for now */
897  ret2=owl_zephyr_loaddefaultsubs();
898
899  if (!owl_context_is_interactive(owl_global_get_context(&g))) return;
900
901  foo=file?file:"file";
902  if (ret==0 && ret2==0) {
903    if (!file) {
904      owl_function_makemsg("Subscribed to messages.");
905    } else {
906      owl_function_makemsg("Subscribed to messages from %s", file);
907    }
908  } else if (ret==-1) {
909    owl_function_error("Could not read %s", foo);
910  } else {
911    owl_function_error("Error subscribing to messages");
912  }
913}
914
915void owl_function_loadloginsubs(const char *file)
916{
917  int ret;
918
919  ret=owl_zephyr_loadloginsubs(file);
920
921  if (!owl_context_is_interactive(owl_global_get_context(&g))) return;
922  if (ret==0) {
923  } else if (ret==-1) {
924    owl_function_error("Could not open file for login subscriptions.");
925  } else {
926    owl_function_error("Error subscribing to login messages from file.");
927  }
928}
929
930void owl_callback_aimlogin(owl_editwin *e) {
931  owl_function_aimlogin(owl_editwin_get_command(e),
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  if (ret) owl_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 zephyr */
1022  owl_zephyr_shutdown();
1023 
1024  /* Quit AIM */
1025  if (owl_global_is_aimloggedin(&g)) {
1026    owl_aim_logout();
1027  }
1028
1029  /* done with curses */
1030  endwin();
1031
1032  /* restore terminal settings */
1033  tcsetattr(0, TCSAFLUSH, owl_global_get_startup_tio(&g));
1034
1035  owl_function_debugmsg("Quitting Owl");
1036  exit(0);
1037}
1038
1039void owl_function_calculate_topmsg(int direction)
1040{
1041  int recwinlines, topmsg, curmsg;
1042  const owl_view *v;
1043
1044  v=owl_global_get_current_view(&g);
1045  curmsg=owl_global_get_curmsg(&g);
1046  topmsg=owl_global_get_topmsg(&g);
1047  recwinlines=owl_global_get_recwin_lines(&g);
1048
1049  /*
1050  if (owl_view_get_size(v) < 1) {
1051    return;
1052  }
1053  */
1054
1055  switch (owl_global_get_scrollmode(&g)) {
1056  case OWL_SCROLLMODE_TOP:
1057    topmsg = owl_function_calculate_topmsg_top(direction, v, curmsg, topmsg, recwinlines);
1058    break;
1059  case OWL_SCROLLMODE_NEARTOP:
1060    topmsg = owl_function_calculate_topmsg_neartop(direction, v, curmsg, topmsg, recwinlines);
1061    break;
1062  case OWL_SCROLLMODE_CENTER:
1063    topmsg = owl_function_calculate_topmsg_center(direction, v, curmsg, topmsg, recwinlines);
1064    break;
1065  case OWL_SCROLLMODE_PAGED:
1066    topmsg = owl_function_calculate_topmsg_paged(direction, v, curmsg, topmsg, recwinlines, 0);
1067    break;
1068  case OWL_SCROLLMODE_PAGEDCENTER:
1069    topmsg = owl_function_calculate_topmsg_paged(direction, v, curmsg, topmsg, recwinlines, 1);
1070    break;
1071  case OWL_SCROLLMODE_NORMAL:
1072  default:
1073    topmsg = owl_function_calculate_topmsg_normal(direction, v, curmsg, topmsg, recwinlines);
1074  }
1075  owl_function_debugmsg("Calculated a topmsg of %i", topmsg);
1076  owl_global_set_topmsg(&g, topmsg);
1077}
1078
1079/* Returns what the new topmsg should be. 
1080 * Passed the last direction of movement,
1081 * the current view,
1082 * the current message number in the view,
1083 * the top message currently being displayed,
1084 * and the number of lines in the recwin.
1085 */
1086int owl_function_calculate_topmsg_top(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1087{
1088  return(curmsg);
1089}
1090
1091int owl_function_calculate_topmsg_neartop(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1092{
1093  if (curmsg>0 
1094      && (owl_message_get_numlines(owl_view_get_element(v, curmsg-1))
1095          <  recwinlines/2)) {
1096    return(curmsg-1);
1097  } else {
1098    return(curmsg);
1099  }
1100}
1101 
1102int owl_function_calculate_topmsg_center(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1103{
1104  int i, last, lines;
1105
1106  last = curmsg;
1107  lines = 0;
1108  for (i=curmsg-1; i>=0; i--) {
1109    lines += owl_message_get_numlines(owl_view_get_element(v, i));
1110    if (lines > recwinlines/2) break;
1111    last = i;
1112  }
1113  return(last);
1114}
1115 
1116int owl_function_calculate_topmsg_paged(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines, int center_on_page)
1117{
1118  int i, last, lines, savey;
1119 
1120  /* If we're off the top of the screen, scroll up such that the
1121   * curmsg is near the botton of the screen. */
1122  if (curmsg < topmsg) {
1123    last = curmsg;
1124    lines = 0;
1125    for (i=curmsg; i>=0; i--) {
1126      lines += owl_message_get_numlines(owl_view_get_element(v, i));
1127      if (lines > recwinlines) break;
1128    last = i;
1129    }
1130    if (center_on_page) {
1131      return(owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines));
1132    } else {
1133      return(last);
1134    }
1135  }
1136
1137  /* Find number of lines from top to bottom of curmsg (store in savey) */
1138  savey=0;
1139  for (i=topmsg; i<=curmsg; i++) {
1140    savey+=owl_message_get_numlines(owl_view_get_element(v, i));
1141  }
1142
1143  /* if we're off the bottom of the screen, scroll down */
1144  if (savey > recwinlines) {
1145    if (center_on_page) {
1146      return(owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines));
1147    } else {
1148      return(curmsg);
1149    }
1150  }
1151
1152  /* else just stay as we are... */
1153  return(topmsg);
1154}
1155
1156int owl_function_calculate_topmsg_normal(int direction, const owl_view *v, int curmsg, int topmsg, int recwinlines)
1157{
1158  int savey, i, foo, y;
1159
1160  if (curmsg<0) return(topmsg);
1161   
1162  /* If we're off the top of the screen then center */
1163  if (curmsg<topmsg) {
1164    topmsg=owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines);
1165  }
1166
1167  /* If curmsg is so far past topmsg that there are more messages than
1168     lines, skip the line counting that follows because we're
1169     certainly off screen.  */
1170  savey=curmsg-topmsg;
1171  if (savey <= recwinlines) {
1172    /* Find number of lines from top to bottom of curmsg (store in savey) */
1173    savey = 0;
1174    for (i=topmsg; i<=curmsg; i++) {
1175      savey+=owl_message_get_numlines(owl_view_get_element(v, i));
1176    }
1177  }
1178
1179  /* If we're off the bottom of the screen, set the topmsg to curmsg
1180   * and scroll upwards */
1181  if (savey > recwinlines) {
1182    topmsg=curmsg;
1183    savey=owl_message_get_numlines(owl_view_get_element(v, curmsg));
1184    direction=OWL_DIRECTION_UPWARDS;
1185  }
1186 
1187  /* If our bottom line is less than 1/4 down the screen then scroll up */
1188  if (direction == OWL_DIRECTION_UPWARDS || direction == OWL_DIRECTION_NONE) {
1189    if (savey < (recwinlines / 4)) {
1190      y=0;
1191      for (i=curmsg; i>=0; i--) {
1192        foo=owl_message_get_numlines(owl_view_get_element(v, i));
1193        /* will we run the curmsg off the screen? */
1194        if ((foo+y) >= recwinlines) {
1195          i++;
1196          if (i>curmsg) i=curmsg;
1197          break;
1198        }
1199        /* have saved 1/2 the screen space? */
1200        y+=foo;
1201        if (y > (recwinlines / 2)) break;
1202      }
1203      if (i<0) i=0;
1204      return(i);
1205    }
1206  }
1207
1208  if (direction == OWL_DIRECTION_DOWNWARDS || direction == OWL_DIRECTION_NONE) {
1209    /* If curmsg bottom line is more than 3/4 down the screen then scroll down */
1210    if (savey > ((recwinlines * 3)/4)) {
1211      y=0;
1212      /* count lines from the top until we can save 1/2 the screen size */
1213      for (i=topmsg; i<curmsg; i++) {
1214        y+=owl_message_get_numlines(owl_view_get_element(v, i));
1215        if (y > (recwinlines / 2)) break;
1216      }
1217      if (i==curmsg) {
1218        i--;
1219      }
1220      return(i+1);
1221    }
1222  }
1223
1224  return(topmsg);
1225}
1226
1227void owl_function_resize(void)
1228{
1229  owl_global_set_resize_pending(&g);
1230}
1231
1232void owl_function_run_buffercommand(void)
1233{
1234  owl_editwin_do_callback(owl_global_get_typwin(&g));
1235}
1236
1237void owl_function_debugmsg(const char *fmt, ...)
1238{
1239  FILE *file;
1240  time_t now;
1241  char buff1[LINE], buff2[LINE];
1242  va_list ap;
1243  va_start(ap, fmt);
1244
1245  if (!owl_global_is_debug_fast(&g)) return;
1246
1247  file=fopen(owl_global_get_debug_file(&g), "a");
1248  if (!file) return;
1249
1250  now=time(NULL);
1251  strcpy(buff1, ctime(&now));
1252  buff1[strlen(buff1)-1]='\0';
1253
1254  owl_global_get_runtime_string(&g, buff2);
1255 
1256  fprintf(file, "[%i -  %s - %s]: ", (int) getpid(), buff1, buff2);
1257  vfprintf(file, fmt, ap);
1258  fprintf(file, "\n");
1259  fclose(file);
1260
1261  va_end(ap);
1262}
1263
1264void owl_function_beep(void)
1265{
1266  if (owl_global_is_bell(&g)) {
1267    beep();
1268    owl_global_set_needrefresh(&g); /* do we really need this? */
1269  }
1270}
1271
1272int owl_function_subscribe(const char *class, const char *inst, const char *recip)
1273{
1274  int ret;
1275
1276  ret=owl_zephyr_sub(class, inst, recip);
1277  if (ret) {
1278    owl_function_error("Error subscribing.");
1279  } else {
1280    owl_function_makemsg("Subscribed.");
1281  }
1282  return(ret);
1283}
1284
1285void owl_function_unsubscribe(const char *class, const char *inst, const char *recip)
1286{
1287  int ret;
1288
1289  ret=owl_zephyr_unsub(class, inst, recip);
1290  if (ret) {
1291    owl_function_error("Error subscribing.");
1292  } else {
1293    owl_function_makemsg("Unsubscribed.");
1294  }
1295}
1296
1297void owl_function_set_cursor(WINDOW *win)
1298{
1299  wnoutrefresh(win);
1300}
1301
1302void owl_function_full_redisplay(void)
1303{
1304  redrawwin(owl_global_get_curs_recwin(&g));
1305  redrawwin(owl_global_get_curs_sepwin(&g));
1306  /* Work around curses segfualts with windows off the screen */
1307  if (g.lines >= owl_global_get_typwin_lines(&g)+2)
1308      redrawwin(owl_global_get_curs_typwin(&g));
1309  if (g.lines >= 2)
1310      redrawwin(owl_global_get_curs_msgwin(&g));
1311
1312  wnoutrefresh(owl_global_get_curs_recwin(&g));
1313  wnoutrefresh(owl_global_get_curs_sepwin(&g));
1314  wnoutrefresh(owl_global_get_curs_typwin(&g));
1315  wnoutrefresh(owl_global_get_curs_msgwin(&g));
1316
1317  if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
1318    owl_popwin_refresh(owl_global_get_popwin(&g));
1319  }
1320 
1321  sepbar("");
1322  owl_function_makemsg("");
1323
1324  owl_global_set_needrefresh(&g);
1325}
1326
1327void owl_function_popless_text(const char *text)
1328{
1329  owl_popwin *pw;
1330  owl_viewwin *v;
1331
1332  pw=owl_global_get_popwin(&g);
1333  v=owl_global_get_viewwin(&g);
1334
1335  owl_popwin_up(pw);
1336  owl_viewwin_init_text(v, owl_popwin_get_curswin(pw),
1337                        owl_popwin_get_lines(pw), owl_popwin_get_cols(pw),
1338                        text);
1339  owl_popwin_refresh(pw);
1340  owl_viewwin_redisplay(v, 0);
1341  owl_global_set_needrefresh(&g);
1342}
1343
1344void owl_function_popless_fmtext(const owl_fmtext *fm)
1345{
1346  owl_popwin *pw;
1347  owl_viewwin *v;
1348
1349  pw=owl_global_get_popwin(&g);
1350  v=owl_global_get_viewwin(&g);
1351
1352  owl_popwin_up(pw);
1353  owl_viewwin_init_fmtext(v, owl_popwin_get_curswin(pw),
1354                   owl_popwin_get_lines(pw), owl_popwin_get_cols(pw),
1355                   fm);
1356  owl_popwin_refresh(pw);
1357  owl_viewwin_redisplay(v, 0);
1358  owl_global_set_needrefresh(&g);
1359}
1360
1361void owl_function_popless_file(const char *filename)
1362{
1363  owl_fmtext fm;
1364  FILE *file;
1365  char buff[1024];
1366
1367  file=fopen(filename, "r");
1368  if (!file) {
1369    owl_function_error("Could not open file: %s", filename);
1370    return;
1371  }
1372
1373  owl_fmtext_init_null(&fm);
1374  while (fgets(buff, 1024, file)) {
1375    owl_fmtext_append_normal(&fm, buff);
1376    /*    owl_fmtext_append_normal(&fm, "\n"); */
1377  }
1378
1379  owl_function_popless_fmtext(&fm);
1380  owl_fmtext_free(&fm);
1381  fclose(file);
1382}
1383
1384void owl_function_about(void)
1385{
1386  owl_function_popless_text(
1387    "This is barnowl version " OWL_VERSION_STRING ".\n\n"
1388    "barnowl is a fork of the Owl zephyr client, written and\n"
1389    "maintained by Alejandro Sedeno and Nelson Elhage at the\n"
1390    "Massachusetts Institute of Technology. \n"
1391    "\n"
1392    "Owl was written by James Kretchmar. The first version, 0.5, was\n"
1393    "released in March 2002.\n"
1394    "\n"
1395    "The name 'owl' was chosen in reference to the owls in the\n"
1396    "Harry Potter novels, who are tasked with carrying messages\n"
1397    "between Witches and Wizards. The name 'barnowl' was chosen\n"
1398    "because we feel our owls should live closer to our ponies.\n"
1399    "\n"
1400    "Copyright (c) 2006-2009 The BarnOwl Developers. All rights reserved.\n"
1401    "Copyright (c) 2004 James Kretchmar. All rights reserved.\n"
1402    "Copyright 2002 Massachusetts Institute of Technology\n"
1403    "\n"
1404    "This program is free software. You can redistribute it and/or\n"
1405    "modify under the terms of the Sleepycat License. Use the \n"
1406    "':show license' command to display the full license\n"
1407  );
1408}
1409
1410void owl_function_info(void)
1411{
1412  const owl_message *m;
1413  owl_fmtext fm, attrfm;
1414  const owl_view *v;
1415#ifdef HAVE_LIBZEPHYR
1416  const ZNotice_t *n;
1417#endif
1418
1419  owl_fmtext_init_null(&fm);
1420 
1421  v=owl_global_get_current_view(&g);
1422  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
1423  if (!m || owl_view_get_size(v)==0) {
1424    owl_function_error("No message selected\n");
1425    return;
1426  }
1427
1428  owl_fmtext_append_bold(&fm, "General Information:\n");
1429  owl_fmtext_appendf_normal(&fm, "  Msg Id    : %i\n", owl_message_get_id(m));
1430
1431  owl_fmtext_append_normal(&fm, "  Type      : ");
1432  owl_fmtext_append_bold(&fm, owl_message_get_type(m));
1433  owl_fmtext_append_normal(&fm, "\n");
1434
1435  if (owl_message_is_direction_in(m)) {
1436    owl_fmtext_append_normal(&fm, "  Direction : in\n");
1437  } else if (owl_message_is_direction_out(m)) {
1438    owl_fmtext_append_normal(&fm, "  Direction : out\n");
1439  } else if (owl_message_is_direction_none(m)) {
1440    owl_fmtext_append_normal(&fm, "  Direction : none\n");
1441  } else {
1442    owl_fmtext_append_normal(&fm, "  Direction : unknown\n");
1443  }
1444
1445  owl_fmtext_appendf_normal(&fm, "  Time      : %s\n", owl_message_get_timestr(m));
1446
1447  if (!owl_message_is_type_admin(m)) {
1448    owl_fmtext_appendf_normal(&fm, "  Sender    : %s\n", owl_message_get_sender(m));
1449    owl_fmtext_appendf_normal(&fm, "  Recipient : %s\n", owl_message_get_recipient(m));
1450  }
1451
1452  if (owl_message_is_type_zephyr(m)) {
1453    owl_fmtext_append_bold(&fm, "\nZephyr Specific Information:\n");
1454   
1455    owl_fmtext_appendf_normal(&fm, "  Class     : %s\n", owl_message_get_class(m));
1456    owl_fmtext_appendf_normal(&fm, "  Instance  : %s\n", owl_message_get_instance(m));
1457    owl_fmtext_appendf_normal(&fm, "  Opcode    : %s\n", owl_message_get_opcode(m));
1458#ifdef HAVE_LIBZEPHYR
1459    if (owl_message_is_direction_in(m)) {
1460      char *ptr, tmpbuff[1024];
1461      int i, j, fields, len;
1462
1463      n=owl_message_get_notice(m);
1464
1465      if (!owl_message_is_pseudo(m)) {
1466        owl_fmtext_append_normal(&fm, "  Kind      : ");
1467        if (n->z_kind==UNSAFE) {
1468          owl_fmtext_append_normal(&fm, "UNSAFE\n");
1469        } else if (n->z_kind==UNACKED) {
1470          owl_fmtext_append_normal(&fm, "UNACKED\n");
1471        } else if (n->z_kind==ACKED) {
1472          owl_fmtext_append_normal(&fm, "ACKED\n");
1473        } else if (n->z_kind==HMACK) {
1474          owl_fmtext_append_normal(&fm, "HMACK\n");
1475        } else if (n->z_kind==HMCTL) {
1476          owl_fmtext_append_normal(&fm, "HMCTL\n");
1477        } else if (n->z_kind==SERVACK) {
1478          owl_fmtext_append_normal(&fm, "SERVACK\n");
1479        } else if (n->z_kind==SERVNAK) {
1480          owl_fmtext_append_normal(&fm, "SERVNACK\n");
1481        } else if (n->z_kind==CLIENTACK) {
1482          owl_fmtext_append_normal(&fm, "CLIENTACK\n");
1483        } else if (n->z_kind==STAT) {
1484          owl_fmtext_append_normal(&fm, "STAT\n");
1485        } else {
1486          owl_fmtext_append_normal(&fm, "ILLEGAL VALUE\n");
1487        }
1488      }
1489      owl_fmtext_appendf_normal(&fm, "  Host      : %s\n", owl_message_get_hostname(m));
1490
1491      if (!owl_message_is_pseudo(m)) {
1492        owl_fmtext_append_normal(&fm, "\n");
1493        owl_fmtext_appendf_normal(&fm, "  Port      : %i\n", ntohs(n->z_port));
1494        owl_fmtext_appendf_normal(&fm, "  Auth      : %s\n", owl_zephyr_get_authstr(n));
1495
1496        /* FIXME make these more descriptive */
1497        owl_fmtext_appendf_normal(&fm, "  Checkd Ath: %i\n", n->z_checked_auth);
1498        owl_fmtext_appendf_normal(&fm, "  Multi notc: %s\n", n->z_multinotice);
1499        owl_fmtext_appendf_normal(&fm, "  Num other : %i\n", n->z_num_other_fields);
1500        owl_fmtext_appendf_normal(&fm, "  Msg Len   : %i\n", n->z_message_len);
1501
1502        fields=owl_zephyr_get_num_fields(n);
1503        owl_fmtext_appendf_normal(&fm, "  Fields    : %i\n", fields);
1504
1505        for (i=0; i<fields; i++) {
1506          ptr=owl_zephyr_get_field_as_utf8(n, i+1);
1507          len=strlen(ptr);
1508          if (len<30) {
1509            strncpy(tmpbuff, ptr, len);
1510            tmpbuff[len]='\0';
1511          } else {
1512            strncpy(tmpbuff, ptr, 30);
1513            tmpbuff[30]='\0';
1514            strcat(tmpbuff, "...");
1515          }
1516          owl_free(ptr);
1517
1518          for (j=0; j<strlen(tmpbuff); j++) {
1519            if (tmpbuff[j]=='\n') tmpbuff[j]='~';
1520            if (tmpbuff[j]=='\r') tmpbuff[j]='!';
1521          }
1522
1523          owl_fmtext_appendf_normal(&fm, "  Field %i   : %s\n", i+1, tmpbuff);
1524        }
1525        owl_fmtext_appendf_normal(&fm, "  Default Fm: %s\n", n->z_default_format);
1526      }
1527
1528    }
1529#endif
1530  }
1531
1532  owl_fmtext_append_bold(&fm, "\nOwl Message Attributes:\n");
1533  owl_message_attributes_tofmtext(m, &attrfm);
1534  owl_fmtext_append_fmtext(&fm, &attrfm);
1535 
1536  owl_function_popless_fmtext(&fm);
1537  owl_fmtext_free(&fm);
1538  owl_fmtext_free(&attrfm);
1539}
1540
1541/* print the current message in a popup window.
1542 * Use the 'default' style regardless of whatever
1543 * style the user may be using
1544 */
1545void owl_function_curmsg_to_popwin(void)
1546{
1547  const owl_view *v;
1548  const owl_message *m;
1549  const owl_style *s;
1550  owl_fmtext fm;
1551
1552  v=owl_global_get_current_view(&g);
1553  s=owl_global_get_style_by_name(&g, "default");
1554
1555  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
1556
1557  if (!m || owl_view_get_size(v)==0) {
1558    owl_function_error("No current message");
1559    return;
1560  }
1561
1562  owl_fmtext_init_null(&fm);
1563  owl_style_get_formattext(s, &fm, m);
1564
1565  owl_function_popless_fmtext(&fm);
1566  owl_fmtext_free(&fm);
1567}
1568
1569void owl_function_page_curmsg(int step)
1570{
1571  /* scroll down or up within the current message IF the message is truncated */
1572
1573  int offset, curmsg, lines;
1574  const owl_view *v;
1575  owl_message *m;
1576
1577  offset=owl_global_get_curmsg_vert_offset(&g);
1578  v=owl_global_get_current_view(&g);
1579  curmsg=owl_global_get_curmsg(&g);
1580  m=owl_view_get_element(v, curmsg);
1581  if (!m || owl_view_get_size(v)==0) return;
1582  lines=owl_message_get_numlines(m);
1583
1584  if (offset==0) {
1585    /* Bail if the curmsg isn't the last one displayed */
1586    if (curmsg != owl_mainwin_get_last_msg(owl_global_get_mainwin(&g))) {
1587      owl_function_makemsg("The entire message is already displayed");
1588      return;
1589    }
1590   
1591    /* Bail if we're not truncated */
1592    if (!owl_mainwin_is_curmsg_truncated(owl_global_get_mainwin(&g))) {
1593      owl_function_makemsg("The entire message is already displayed");
1594      return;
1595    }
1596  }
1597 
1598 
1599  /* don't scroll past the last line */
1600  if (step>0) {
1601    if (offset+step > lines-1) {
1602      owl_global_set_curmsg_vert_offset(&g, lines-1);
1603    } else {
1604      owl_global_set_curmsg_vert_offset(&g, offset+step);
1605    }
1606  }
1607
1608  /* would we be before the beginning of the message? */
1609  if (step<0) {
1610    if (offset+step<0) {
1611      owl_global_set_curmsg_vert_offset(&g, 0);
1612    } else {
1613      owl_global_set_curmsg_vert_offset(&g, offset+step);
1614    }
1615  }
1616 
1617  /* redisplay */
1618  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1619  owl_global_set_needrefresh(&g);
1620}
1621
1622void owl_function_resize_typwin(int newsize)
1623{
1624  owl_global_set_typwin_lines(&g, newsize);
1625  owl_function_resize();
1626}
1627
1628void owl_function_mainwin_pagedown(void)
1629{
1630  int i;
1631
1632  i=owl_mainwin_get_last_msg(owl_global_get_mainwin(&g));
1633  if (i<0) return;
1634  if (owl_mainwin_is_last_msg_truncated(owl_global_get_mainwin(&g))
1635      && (owl_global_get_curmsg(&g) < i)
1636      && (i>0)) {
1637    i--;
1638  }
1639  owl_global_set_curmsg(&g, i);
1640  owl_function_nextmsg();
1641}
1642
1643void owl_function_mainwin_pageup(void)
1644{
1645  owl_global_set_curmsg(&g, owl_global_get_topmsg(&g));
1646  owl_function_prevmsg();
1647}
1648
1649void owl_function_getsubs(void)
1650{
1651  char *buff;
1652
1653  buff=owl_zephyr_getsubs();
1654
1655  if (buff) {
1656    owl_function_popless_text(buff);
1657  } else {
1658    owl_function_popless_text("Error getting subscriptions");
1659  }
1660           
1661  owl_free(buff);
1662}
1663
1664void owl_function_printallvars(void)
1665{
1666  const char *name;
1667  char var[LINE];
1668  owl_list varnames;
1669  int i, numvarnames;
1670  GString *str   = g_string_new("");
1671
1672  g_string_append_printf(str, "%-20s = %s\n", "VARIABLE", "VALUE");
1673  g_string_append_printf(str, "%-20s   %s\n",  "--------", "-----");
1674  owl_variable_dict_get_names(owl_global_get_vardict(&g), &varnames);
1675  numvarnames = owl_list_get_size(&varnames);
1676  for (i=0; i<numvarnames; i++) {
1677    name = owl_list_get_element(&varnames, i);
1678    if (name && name[0]!='_') {
1679      g_string_append_printf(str, "\n%-20s = ", name);
1680      owl_variable_get_tostring(owl_global_get_vardict(&g), name, var, LINE);
1681      g_string_append(str, var);
1682    }
1683  }
1684  g_string_append(str, "\n");
1685  owl_variable_dict_namelist_free(&varnames);
1686
1687  owl_function_popless_text(str->str);
1688  g_string_free(str, TRUE);
1689}
1690
1691void owl_function_show_variables(void)
1692{
1693  owl_list varnames;
1694  owl_fmtext fm; 
1695  int i, numvarnames;
1696  const char *varname;
1697
1698  owl_fmtext_init_null(&fm);
1699  owl_fmtext_append_bold(&fm, 
1700      "Variables: (use 'show variable <name>' for details)\n");
1701  owl_variable_dict_get_names(owl_global_get_vardict(&g), &varnames);
1702  numvarnames = owl_list_get_size(&varnames);
1703  for (i=0; i<numvarnames; i++) {
1704    varname = owl_list_get_element(&varnames, i);
1705    if (varname && varname[0]!='_') {
1706      owl_variable_describe(owl_global_get_vardict(&g), varname, &fm);
1707    }
1708  }
1709  owl_variable_dict_namelist_free(&varnames);
1710  owl_function_popless_fmtext(&fm);
1711  owl_fmtext_free(&fm);
1712}
1713
1714void owl_function_show_variable(const char *name)
1715{
1716  owl_fmtext fm; 
1717
1718  owl_fmtext_init_null(&fm);
1719  owl_variable_get_help(owl_global_get_vardict(&g), name, &fm);
1720  owl_function_popless_fmtext(&fm);
1721  owl_fmtext_free(&fm); 
1722}
1723
1724/* note: this applies to global message list, not to view.
1725 * If flag is 1, deletes.  If flag is 0, undeletes. */
1726void owl_function_delete_by_id(int id, int flag)
1727{
1728  const owl_messagelist *ml;
1729  owl_message *m;
1730  ml = owl_global_get_msglist(&g);
1731  m = owl_messagelist_get_by_id(ml, id);
1732  if (m) {
1733    if (flag == 1) {
1734      owl_message_mark_delete(m);
1735    } else if (flag == 0) {
1736      owl_message_unmark_delete(m);
1737    }
1738    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1739    owl_global_set_needrefresh(&g);
1740  } else {
1741    owl_function_error("No message with id %d: unable to mark for (un)delete",id);
1742  }
1743}
1744
1745void owl_function_delete_automsgs(void)
1746{
1747  /* mark for deletion all messages in the current view that match the
1748   * 'trash' filter */
1749
1750  int i, j, count;
1751  owl_message *m;
1752  const owl_view *v;
1753  const owl_filter *f;
1754
1755  /* get the trash filter */
1756  f=owl_global_get_filter(&g, "trash");
1757  if (!f) {
1758    owl_function_error("No trash filter defined");
1759    return;
1760  }
1761
1762  v=owl_global_get_current_view(&g);
1763
1764  count=0;
1765  j=owl_view_get_size(v);
1766  for (i=0; i<j; i++) {
1767    m=owl_view_get_element(v, i);
1768    if (owl_filter_message_match(f, m)) {
1769      count++;
1770      owl_message_mark_delete(m);
1771    }
1772  }
1773  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
1774  owl_function_makemsg("%i messages marked for deletion", count);
1775  owl_global_set_needrefresh(&g);
1776}
1777
1778void owl_function_status(void)
1779{
1780  char buff[MAXPATHLEN+1];
1781  time_t start;
1782  int up, days, hours, minutes;
1783  owl_fmtext fm;
1784
1785  owl_fmtext_init_null(&fm);
1786
1787  start=owl_global_get_starttime(&g);
1788
1789  owl_fmtext_append_normal(&fm, "General Information:\n");
1790
1791  owl_fmtext_append_normal(&fm, "  Version: ");
1792  owl_fmtext_append_normal(&fm, OWL_VERSION_STRING);
1793  owl_fmtext_append_normal(&fm, "\n");
1794
1795  owl_fmtext_append_normal(&fm, "  Startup Arguments: ");
1796  owl_fmtext_append_normal(&fm, owl_global_get_startupargs(&g));
1797  owl_fmtext_append_normal(&fm, "\n");
1798
1799  owl_fmtext_append_normal(&fm, "  Current Directory: ");
1800  if(getcwd(buff, MAXPATHLEN) == NULL) {
1801    owl_fmtext_append_normal(&fm, "<Error in getcwd>");
1802  } else {
1803    owl_fmtext_append_normal(&fm, buff);
1804  }
1805  owl_fmtext_append_normal(&fm, "\n");
1806
1807  owl_fmtext_appendf_normal(&fm, "  Startup Time: %s", ctime(&start));
1808
1809  up=owl_global_get_runtime(&g);
1810  days=up/86400;
1811  up-=days*86400;
1812  hours=up/3600;
1813  up-=hours*3600;
1814  minutes=up/60;
1815  up-=minutes*60;
1816  owl_fmtext_appendf_normal(&fm, "  Run Time: %i days %2.2i:%2.2i:%2.2i\n", days, hours, minutes, up);
1817
1818  owl_fmtext_append_normal(&fm, "\nProtocol Options:\n");
1819  owl_fmtext_append_normal(&fm, "  Zephyr included    : ");
1820  if (owl_global_is_havezephyr(&g)) {
1821    owl_fmtext_append_normal(&fm, "yes\n");
1822  } else {
1823    owl_fmtext_append_normal(&fm, "no\n");
1824  }
1825  owl_fmtext_append_normal(&fm, "  AIM included       : yes\n");
1826  owl_fmtext_append_normal(&fm, "  Loopback included  : yes\n");
1827
1828
1829  owl_fmtext_append_normal(&fm, "\nBuild Options:\n");
1830  owl_fmtext_append_normal(&fm, "  Stderr redirection : ");
1831#if OWL_STDERR_REDIR
1832  owl_fmtext_append_normal(&fm, "yes\n");
1833#else
1834  owl_fmtext_append_normal(&fm, "no\n");
1835#endif
1836 
1837
1838  owl_fmtext_append_normal(&fm, "\nAIM Status:\n");
1839  owl_fmtext_append_normal(&fm, "  Logged in: ");
1840  if (owl_global_is_aimloggedin(&g)) {
1841    owl_fmtext_append_normal(&fm, owl_global_get_aim_screenname(&g));
1842    owl_fmtext_append_normal(&fm, "\n");
1843  } else {
1844    owl_fmtext_append_normal(&fm, "(not logged in)\n");
1845  }
1846
1847  owl_fmtext_append_normal(&fm, "  Processing events: ");
1848  if (owl_global_is_doaimevents(&g)) {
1849    owl_fmtext_append_normal(&fm, "yes\n");
1850  } else {
1851    owl_fmtext_append_normal(&fm, "no\n");
1852  }
1853
1854  owl_function_popless_fmtext(&fm);
1855  owl_fmtext_free(&fm);
1856}
1857
1858void owl_function_show_term(void)
1859{
1860  owl_fmtext fm;
1861
1862  owl_fmtext_init_null(&fm);
1863  owl_fmtext_appendf_normal(&fm, "Terminal Lines: %i\nTerminal Columns: %i\n",
1864          owl_global_get_lines(&g),
1865          owl_global_get_cols(&g));
1866
1867  if (owl_global_get_hascolors(&g)) {
1868    owl_fmtext_append_normal(&fm, "Color: Yes\n");
1869    owl_fmtext_appendf_normal(&fm, "Number of color pairs: %i\n", owl_global_get_colorpairs(&g));
1870    owl_fmtext_appendf_normal(&fm, "Can change colors: %s\n", can_change_color() ? "yes" : "no");
1871  } else {
1872    owl_fmtext_append_normal(&fm, "Color: No\n");
1873  }
1874
1875  owl_function_popless_fmtext(&fm);
1876  owl_fmtext_free(&fm);
1877}
1878
1879/* if type = 0 then normal reply.
1880 * if type = 1 then it's a reply to sender
1881 * if enter = 0 then allow the command to be edited
1882 * if enter = 1 then don't wait for editing
1883 */
1884void owl_function_reply(int type, int enter)
1885{
1886  char *buff=NULL;
1887  const owl_message *m;
1888  const owl_filter *f;
1889 
1890  if (owl_view_get_size(owl_global_get_current_view(&g))==0) {
1891    owl_function_error("No message selected");
1892  } else {
1893    char *cmd;
1894   
1895    m=owl_view_get_element(owl_global_get_current_view(&g), owl_global_get_curmsg(&g));
1896    if (!m) {
1897      owl_function_error("No message selected");
1898      return;
1899    }
1900
1901    /* first check if we catch the reply-lockout filter */
1902    f=owl_global_get_filter(&g, "reply-lockout");
1903    if (f) {
1904      if (owl_filter_message_match(f, m)) {
1905        owl_function_error("Sorry, replies to this message have been disabled by the reply-lockout filter");
1906        return;
1907      }
1908    }
1909
1910    /* then check if it's a question and just bring up the command prompt */
1911    if (owl_message_is_question(m)) {
1912      owl_function_start_command("");
1913      return;
1914    }
1915
1916    if((type == 0 &&
1917        (cmd=owl_perlconfig_message_call_method(m, "replycmd", 0, NULL))) ||
1918       (type == 1 &&
1919        (cmd=owl_perlconfig_message_call_method(m, "replysendercmd", 0, NULL)))) {
1920      buff = cmd;
1921    }
1922
1923    if(!buff) {
1924        owl_function_error("I don't know how to reply to that message.");
1925        return;
1926    }
1927
1928    if (enter) {
1929      owl_history *hist = owl_global_get_cmd_history(&g);
1930      owl_history_store(hist, buff);
1931      owl_history_reset(hist);
1932      owl_function_command_norv(buff);
1933    } else {
1934      owl_function_start_command(buff);
1935    }
1936    owl_free(buff);
1937  }
1938}
1939
1940void owl_function_zlocate(int argc, const char *const *argv, int auth)
1941{
1942  owl_fmtext fm;
1943  char *ptr;
1944  char *result;
1945  int i;
1946
1947  owl_fmtext_init_null(&fm);
1948
1949  for (i=0; i<argc; i++) {
1950    ptr = long_zuser(argv[i]);
1951    result = owl_zephyr_zlocate(ptr, auth);
1952    owl_fmtext_append_normal(&fm, result);
1953    owl_free(result);
1954    owl_free(ptr);
1955  }
1956
1957  owl_function_popless_fmtext(&fm);
1958  owl_fmtext_free(&fm);
1959}
1960
1961void owl_function_start_command(const char *line)
1962{
1963  owl_editwin *tw;
1964
1965  tw=owl_global_get_typwin(&g);
1966  owl_global_set_typwin_active(&g);
1967  owl_editwin_new_style(tw, OWL_EDITWIN_STYLE_ONELINE, 
1968                        owl_global_get_cmd_history(&g));
1969
1970  owl_editwin_set_locktext(tw, "command: ");
1971  owl_global_set_needrefresh(&g);
1972
1973  owl_editwin_insert_string(tw, line);
1974  owl_editwin_redisplay(tw, 0);
1975
1976  owl_context_set_editline(owl_global_get_context(&g), tw);
1977  owl_function_activate_keymap("editline");
1978}
1979
1980void owl_function_start_question(const char *line)
1981{
1982  owl_editwin *tw;
1983
1984  tw=owl_global_get_typwin(&g);
1985  owl_global_set_typwin_active(&g);
1986  owl_editwin_new_style(tw, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));
1987
1988  owl_editwin_set_locktext(tw, line);
1989  owl_global_set_needrefresh(&g);
1990
1991  owl_editwin_redisplay(tw, 0);
1992
1993  owl_context_set_editresponse(owl_global_get_context(&g), tw);
1994  owl_function_activate_keymap("editresponse");
1995}
1996
1997void owl_function_start_password(const char *line)
1998{
1999  owl_editwin *tw;
2000
2001  tw=owl_global_get_typwin(&g);
2002  owl_global_set_typwin_active(&g);
2003  owl_editwin_new_style(tw, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));
2004  owl_editwin_set_echochar(tw, '*');
2005
2006  owl_editwin_set_locktext(tw, line);
2007  owl_global_set_needrefresh(&g);
2008
2009  owl_editwin_redisplay(tw, 0);
2010
2011  owl_context_set_editresponse(owl_global_get_context(&g), tw);
2012  owl_function_activate_keymap("editresponse");
2013}
2014
2015char *owl_function_exec(int argc, const char *const *argv, const char *buff, int type)
2016{
2017  /* if type == 1 display in a popup
2018   * if type == 2 display an admin messages
2019   * if type == 0 return output
2020   * else display in a popup
2021   */
2022  const char *redirect = " 2>&1 < /dev/null";
2023  char *newbuff;
2024  char *out, buff2[1024];
2025  int size;
2026  FILE *p;
2027
2028#if OWL_STDERR_REDIR
2029  redirect = " < /dev/null";
2030#endif
2031
2032  if (argc<2) {
2033    owl_function_error("Wrong number of arguments to the exec command");
2034    return NULL;
2035  }
2036
2037  buff = skiptokens(buff, 1);
2038  newbuff = owl_sprintf("%s%s", buff, redirect);
2039
2040  if (type == 1) {
2041    owl_popexec_new(newbuff);
2042  } else {
2043    p=popen(newbuff, "r");
2044    out=owl_malloc(1024);
2045    size=1024;
2046    strcpy(out, "");
2047    while (fgets(buff2, 1024, p)!=NULL) {
2048      size+=1024;
2049      out=owl_realloc(out, size);
2050      strcat(out, buff2);
2051    }
2052    pclose(p);
2053   
2054    if (type==1) {
2055      owl_function_popless_text(out);
2056    } else if (type==0) {
2057      return out;
2058    } else if (type==2) {
2059      owl_function_adminmsg(buff, out);
2060    } else {
2061      owl_function_popless_text(out);
2062    }
2063    owl_free(out);
2064  }
2065  return NULL;
2066}
2067
2068char *owl_function_perl(int argc, const char *const *argv, const char *buff, int type)
2069{
2070  /* if type == 1 display in a popup
2071   * if type == 2 display an admin messages
2072   * if type == 0 return output
2073   * else display in a popup
2074   */
2075  char *perlout;
2076
2077  if (argc<2) {
2078    owl_function_error("Wrong number of arguments to perl command");
2079    return NULL;
2080  }
2081
2082  /* consume first token (argv[0]) */
2083  buff = skiptokens(buff, 1);
2084
2085  perlout = owl_perlconfig_execute(buff);
2086  if (perlout) { 
2087    if (type==1) {
2088      owl_function_popless_text(perlout);
2089    } else if (type==2) {
2090      owl_function_adminmsg(buff, perlout);
2091    } else if (type==0) {
2092      return perlout;
2093    } else {
2094      owl_function_popless_text(perlout);
2095    }
2096    owl_free(perlout);
2097  }
2098  return NULL;
2099}
2100
2101/* Change the filter associated with the current view.
2102 * This also figures out which message in the new filter
2103 * should have the pointer.
2104 */
2105void owl_function_change_currentview_filter(const char *filtname)
2106{
2107  owl_view *v;
2108  owl_filter *f;
2109  int curid=-1, newpos, curmsg;
2110  const owl_message *curm=NULL;
2111
2112  v=owl_global_get_current_view(&g);
2113
2114  curmsg=owl_global_get_curmsg(&g);
2115  if (curmsg==-1) {
2116    owl_function_debugmsg("Hit the curmsg==-1 case in change_view");
2117  } else {
2118    curm=owl_view_get_element(v, curmsg);
2119    if (curm) {
2120      curid=owl_message_get_id(curm);
2121      owl_view_save_curmsgid(v, curid);
2122    }
2123  }
2124
2125  f=owl_global_get_filter(&g, filtname);
2126  if (!f) {
2127    owl_function_error("Unknown filter %s", filtname);
2128    return;
2129  }
2130
2131  owl_view_new_filter(v, f);
2132
2133  /* Figure out what to set the current message to.
2134   * - If the view we're leaving has messages in it, go to the closest message
2135   *   to the last message pointed to in that view.
2136   * - If the view we're leaving is empty, try to restore the position
2137   *   from the last time we were in the new view.  */
2138  if (curm) {
2139    newpos = owl_view_get_nearest_to_msgid(v, curid);
2140  } else {
2141    newpos = owl_view_get_nearest_to_saved(v);
2142  }
2143
2144  owl_global_set_curmsg(&g, newpos);
2145  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
2146  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2147  owl_global_set_direction_downwards(&g);
2148}
2149
2150/* Create a new filter, or replace an existing one
2151 * with a new definition.
2152 */
2153void owl_function_create_filter(int argc, const char *const *argv)
2154{
2155  owl_filter *f;
2156  const owl_view *v;
2157  int ret, inuse=0;
2158
2159  if (argc < 2) {
2160    owl_function_error("Wrong number of arguments to filter command");
2161    return;
2162  }
2163
2164  owl_function_debugmsg("owl_function_create_filter: starting to create filter named %s", argv[1]);
2165
2166  v=owl_global_get_current_view(&g);
2167
2168  /* don't touch the all filter */
2169  if (!strcmp(argv[1], "all")) {
2170    owl_function_error("You may not change the 'all' filter.");
2171    return;
2172  }
2173
2174  /* deal with the case of trying change the filter color */
2175  if (argc==4 && !strcmp(argv[2], "-c")) {
2176    f=owl_global_get_filter(&g, argv[1]);
2177    if (!f) {
2178      owl_function_error("The filter '%s' does not exist.", argv[1]);
2179      return;
2180    }
2181    if (owl_util_string_to_color(argv[3])==OWL_COLOR_INVALID) {
2182      owl_function_error("The color '%s' is not available.", argv[3]);
2183      return;
2184    }
2185    owl_filter_set_fgcolor(f, owl_util_string_to_color(argv[3]));
2186    owl_global_set_needrefresh(&g);
2187    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2188    return;
2189  }
2190  if (argc==4 && !strcmp(argv[2], "-b")) {
2191    f=owl_global_get_filter(&g, argv[1]);
2192    if (!f) {
2193      owl_function_error("The filter '%s' does not exist.", argv[1]);
2194      return;
2195    }
2196    if (owl_util_string_to_color(argv[3])==OWL_COLOR_INVALID) {
2197      owl_function_error("The color '%s' is not available.", argv[3]);
2198      return;
2199    }
2200    owl_filter_set_bgcolor(f, owl_util_string_to_color(argv[3]));
2201    owl_global_set_needrefresh(&g);
2202    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2203    return;
2204  }
2205
2206  /* create the filter and check for errors */
2207  f=owl_malloc(sizeof(owl_filter));
2208  ret=owl_filter_init(f, argv[1], argc-2, argv+2);
2209  if (ret==-1) {
2210    owl_free(f);
2211    owl_function_error("Invalid filter");
2212    return;
2213  }
2214
2215  /* if the named filter is in use by the current view, remember it */
2216  if (!strcmp(owl_view_get_filtname(v), argv[1])) {
2217    inuse=1;
2218  }
2219
2220  /* if the named filter already exists, nuke it */
2221  if (owl_global_get_filter(&g, argv[1])) {
2222    owl_global_remove_filter(&g, argv[1]);
2223  }
2224
2225  /* add the filter */
2226  owl_global_add_filter(&g, f);
2227
2228  /* if it was in use by the current view then update */
2229  if (inuse) {
2230    owl_function_change_currentview_filter(argv[1]);
2231  }
2232  owl_global_set_needrefresh(&g);
2233  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2234}
2235
2236/* If 'filtername' does not start with 'not-' create a filter named
2237 * 'not-<filtername>' defined as "not filter <filtername>".  If the
2238 * filter 'not-<filtername>' already exists, do not overwrite it.  If
2239 * 'filtername' begins with 'not-' and a filter 'filtername' already
2240 * exists, then do nothing.  If the filter 'filtername' does not
2241 * exist, create it and define it as 'not filter <filtername>'
2242 *
2243 * Returns the name of the negated filter, which the caller must free.
2244 */
2245char *owl_function_create_negative_filter(const char *filtername)
2246{
2247  char *newname;
2248  const owl_filter *tmpfilt;
2249  const char *argv[5];
2250
2251  owl_function_debugmsg("owl_function_create_negative_filter");
2252 
2253  if (!strncmp(filtername, "not-", 4)) {
2254    newname=owl_strdup(filtername+4);
2255  } else {
2256    newname=owl_sprintf("not-%s", filtername);
2257  }
2258
2259  tmpfilt=owl_global_get_filter(&g, newname);
2260  if (!tmpfilt) {
2261    argv[0]="filter"; /* anything is fine here */
2262    argv[1]=newname;
2263    argv[2]="not";
2264    argv[3]="filter";
2265    argv[4]=filtername;
2266    owl_function_create_filter(5, argv);
2267  }
2268
2269  owl_function_debugmsg("owl_function_create_negative_filter: returning with %s", newname);
2270  return(newname);
2271}
2272
2273void owl_function_show_filters(void)
2274{
2275  const owl_list *l;
2276  const owl_filter *f;
2277  int i, j;
2278  owl_fmtext fm;
2279
2280  owl_fmtext_init_null(&fm);
2281
2282  l=owl_global_get_filterlist(&g);
2283  j=owl_list_get_size(l);
2284
2285  owl_fmtext_append_bold(&fm, "Filters:\n");
2286
2287  for (i=0; i<j; i++) {
2288    f=owl_list_get_element(l, i);
2289    owl_fmtext_append_normal(&fm, "   ");
2290    if (owl_global_get_hascolors(&g)) {
2291      owl_fmtext_append_normal_color(&fm, owl_filter_get_name(f), owl_filter_get_fgcolor(f), owl_filter_get_bgcolor(f));
2292    } else {
2293      owl_fmtext_append_normal(&fm, owl_filter_get_name(f));
2294    }
2295    owl_fmtext_append_normal(&fm, "\n");
2296  }
2297  owl_function_popless_fmtext(&fm);
2298  owl_fmtext_free(&fm);
2299}
2300
2301void owl_function_show_filter(const char *name)
2302{
2303  const owl_filter *f;
2304  char *buff, *tmp;
2305
2306  f=owl_global_get_filter(&g, name);
2307  if (!f) {
2308    owl_function_error("There is no filter named %s", name);
2309    return;
2310  }
2311  tmp = owl_filter_print(f);
2312  buff = owl_sprintf("%s: %s", owl_filter_get_name(f), tmp);
2313  owl_function_popless_text(buff);
2314  owl_free(buff);
2315  owl_free(tmp);
2316}
2317
2318void owl_function_show_zpunts(void)
2319{
2320  const owl_filter *f;
2321  const owl_list *fl;
2322  char buff[5000];
2323  char *tmp;
2324  owl_fmtext fm;
2325  int i, j;
2326
2327  owl_fmtext_init_null(&fm);
2328
2329  fl=owl_global_get_puntlist(&g);
2330  j=owl_list_get_size(fl);
2331  owl_fmtext_append_bold(&fm, "Active zpunt filters:\n");
2332
2333  for (i=0; i<j; i++) {
2334    f=owl_list_get_element(fl, i);
2335    snprintf(buff, sizeof(buff), "[% 2d] ", i+1);
2336    owl_fmtext_append_normal(&fm, buff);
2337    tmp = owl_filter_print(f);
2338    owl_fmtext_append_normal(&fm, tmp);
2339    owl_free(tmp);
2340  }
2341  owl_function_popless_fmtext(&fm);
2342  owl_fmtext_free(&fm);
2343}
2344
2345/* Create a filter for a class, instance if one doesn't exist.  If
2346 * instance is NULL then catch all messgaes in the class.  Returns the
2347 * name of the filter, which the caller must free.
2348 */
2349char *owl_function_classinstfilt(const char *c, const char *i) 
2350{
2351  owl_filter *f;
2352  char *argbuff, *filtname;
2353  char *tmpclass, *tmpinstance = NULL;
2354  char *class, *instance = NULL;
2355
2356  class = owl_util_baseclass(c);
2357  if(i) {
2358    instance = owl_util_baseclass(i);
2359  }
2360
2361  /* name for the filter */
2362  if (!instance) {
2363    filtname = owl_sprintf("class-%s", class);
2364  } else {
2365    filtname = owl_sprintf("class-%s-instance-%s", class, instance);
2366  }
2367  /* downcase it */
2368  {
2369    char *temp = g_utf8_strdown(filtname, -1);
2370    if (temp) {
2371      owl_free(filtname);
2372      filtname = temp;
2373    }
2374  }
2375  /* turn spaces, single quotes, and double quotes into dots */
2376  owl_text_tr(filtname, ' ', '.');
2377  owl_text_tr(filtname, '\'', '.');
2378  owl_text_tr(filtname, '"', '.');
2379 
2380  /* if it already exists then go with it.  This lets users override */
2381  if (owl_global_get_filter(&g, filtname)) {
2382    return(filtname);
2383  }
2384
2385  /* create the new filter */
2386  tmpclass=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2387  owl_text_tr(tmpclass, ' ', '.');
2388  owl_text_tr(tmpclass, '\'', '.');
2389  owl_text_tr(tmpclass, '"', '.');
2390  if (instance) {
2391    tmpinstance=owl_text_quote(instance, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2392    owl_text_tr(tmpinstance, ' ', '.');
2393    owl_text_tr(tmpinstance, '\'', '.');
2394    owl_text_tr(tmpinstance, '"', '.');
2395  }
2396
2397  argbuff = owl_sprintf("class ^(un)*%s(\\.d)*$", tmpclass);
2398  if (tmpinstance) {
2399    char *tmp = argbuff;
2400    argbuff = owl_sprintf("%s and ( instance ^(un)*%s(\\.d)*$ )", tmp, tmpinstance);
2401    owl_free(tmp);
2402  }
2403  owl_free(tmpclass);
2404  if (tmpinstance) owl_free(tmpinstance);
2405
2406  f=owl_malloc(sizeof(owl_filter));
2407  owl_filter_init_fromstring(f, filtname, argbuff);
2408
2409  /* add it to the global list */
2410  owl_global_add_filter(&g, f);
2411
2412  owl_free(argbuff);
2413  owl_free(class);
2414  if (instance) {
2415    owl_free(instance);
2416  }
2417  return(filtname);
2418}
2419
2420/* Create a filter for personal zephyrs to or from the specified
2421 * zephyr user.  Includes login/logout notifications for the user.
2422 * The name of the filter will be 'user-<user>'.  If a filter already
2423 * exists with this name, no new filter will be created.  This allows
2424 * the configuration to override this function.  Returns the name of
2425 * the filter, which the caller must free.
2426 */
2427char *owl_function_zuserfilt(const char *user)
2428{
2429  owl_filter *f;
2430  char *argbuff, *longuser, *esclonguser, *shortuser, *filtname;
2431
2432  /* stick the local realm on if it's not there */
2433  longuser=long_zuser(user);
2434  shortuser=short_zuser(user);
2435
2436  /* name for the filter */
2437  filtname=owl_sprintf("user-%s", shortuser);
2438
2439  /* if it already exists then go with it.  This lets users override */
2440  if (owl_global_get_filter(&g, filtname)) {
2441    return(owl_strdup(filtname));
2442  }
2443
2444  /* create the new-internal filter */
2445  f=owl_malloc(sizeof(owl_filter));
2446
2447  esclonguser = owl_text_quote(longuser, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2448
2449  argbuff=owl_sprintf("( type ^zephyr$ and filter personal and "
2450      "( ( direction ^in$ and sender ^%1$s$ ) or ( direction ^out$ and "
2451      "recipient ^%1$s$ ) ) ) or ( ( class ^login$ ) and ( sender ^%1$s$ ) )",
2452      esclonguser);
2453
2454  owl_filter_init_fromstring(f, filtname, argbuff);
2455
2456  /* add it to the global list */
2457  owl_global_add_filter(&g, f);
2458
2459  /* free stuff */
2460  owl_free(argbuff);
2461  owl_free(longuser);
2462  owl_free(esclonguser);
2463  owl_free(shortuser);
2464
2465  return(filtname);
2466}
2467
2468/* Create a filter for AIM IM messages to or from the specified
2469 * screenname.  The name of the filter will be 'aimuser-<user>'.  If a
2470 * filter already exists with this name, no new filter will be
2471 * created.  This allows the configuration to override this function.
2472 * Returns the name of the filter, which the caller must free.
2473 */
2474char *owl_function_aimuserfilt(const char *user)
2475{
2476  owl_filter *f;
2477  char *argbuff, *filtname;
2478  char *escuser;
2479
2480  /* name for the filter */
2481  filtname=owl_sprintf("aimuser-%s", user);
2482
2483  /* if it already exists then go with it.  This lets users override */
2484  if (owl_global_get_filter(&g, filtname)) {
2485    return(owl_strdup(filtname));
2486  }
2487
2488  /* create the new-internal filter */
2489  f=owl_malloc(sizeof(owl_filter));
2490
2491  escuser = owl_text_quote(user, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2492
2493  argbuff = owl_sprintf(
2494      "( type ^aim$ and ( ( sender ^%1$s$ and recipient ^%2$s$ ) or "
2495      "( sender ^%2$s$ and recipient ^%1$s$ ) ) )",
2496      escuser, owl_global_get_aim_screenname_for_filters(&g));
2497
2498  owl_filter_init_fromstring(f, filtname, argbuff);
2499
2500  /* add it to the global list */
2501  owl_global_add_filter(&g, f);
2502
2503  /* free stuff */
2504  owl_free(argbuff);
2505  owl_free(escuser);
2506
2507  return(filtname);
2508}
2509
2510char *owl_function_typefilt(const char *type)
2511{
2512  owl_filter *f;
2513  char *argbuff, *filtname, *esctype;
2514
2515  /* name for the filter */
2516  filtname=owl_sprintf("type-%s", type);
2517
2518  /* if it already exists then go with it.  This lets users override */
2519  if (owl_global_get_filter(&g, filtname)) {
2520    return filtname;
2521  }
2522
2523  /* create the new-internal filter */
2524  f=owl_malloc(sizeof(owl_filter));
2525
2526  esctype = owl_text_quote(type, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2527
2528  argbuff = owl_sprintf("type ^%s$", esctype);
2529
2530  owl_filter_init_fromstring(f, filtname, argbuff);
2531
2532  /* add it to the global list */
2533  owl_global_add_filter(&g, f);
2534
2535  /* free stuff */
2536  owl_free(argbuff);
2537  owl_free(esctype);
2538
2539  return filtname;
2540}
2541
2542/* If flag is 1, marks for deletion.  If flag is 0,
2543 * unmarks for deletion. */
2544void owl_function_delete_curview_msgs(int flag)
2545{
2546  const owl_view *v;
2547  int i, j;
2548
2549  v=owl_global_get_current_view(&g);
2550  j=owl_view_get_size(v);
2551  for (i=0; i<j; i++) {
2552    if (flag == 1) {
2553      owl_message_mark_delete(owl_view_get_element(v, i));
2554    } else if (flag == 0) {
2555      owl_message_unmark_delete(owl_view_get_element(v, i));
2556    }
2557  }
2558
2559  owl_function_makemsg("%i messages marked for %sdeletion", j, flag?"":"un");
2560
2561  owl_mainwin_redisplay(owl_global_get_mainwin(&g)); 
2562}
2563
2564/* Create a filter based on the current message.  Returns the name of
2565 * a filter or null.  The caller must free this name.
2566 *
2567 * if the curmsg is a personal zephyr return a filter name
2568 *    to the zephyr conversation with that user.
2569 * If the curmsg is a zephyr class message, instance foo, recip *,
2570 *    return a filter name to the class, inst.
2571 * If the curmsg is a zephyr class message and type==0 then
2572 *    return a filter name for just the class.
2573 * If the curmsg is a zephyr class message and type==1 then
2574 *    return a filter name for the class and instance.
2575 * If the curmsg is a personal AIM message returna  filter
2576 *    name to the AIM conversation with that user
2577 */
2578char *owl_function_smartfilter(int type)
2579{
2580  const owl_view *v;
2581  const owl_message *m;
2582  char *zperson, *filtname=NULL;
2583  const char *argv[1];
2584 
2585  v=owl_global_get_current_view(&g);
2586  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
2587
2588  if (!m || owl_view_get_size(v)==0) {
2589    owl_function_error("No message selected\n");
2590    return(NULL);
2591  }
2592
2593  /* very simple handling of admin messages for now */
2594  if (owl_message_is_type_admin(m)) {
2595    return(owl_function_typefilt("admin"));
2596  }
2597
2598  /* very simple handling of loopback messages for now */
2599  if (owl_message_is_type_loopback(m)) {
2600    return(owl_function_typefilt("loopback"));
2601  }
2602
2603  /* aim messages */
2604  if (owl_message_is_type_aim(m)) {
2605    if (owl_message_is_direction_in(m)) {
2606      filtname=owl_function_aimuserfilt(owl_message_get_sender(m));
2607    } else if (owl_message_is_direction_out(m)) {
2608      filtname=owl_function_aimuserfilt(owl_message_get_recipient(m));
2609    }
2610    return(filtname);
2611  }
2612
2613  /* narrow personal and login messages to the sender or recip as appropriate */
2614  if (owl_message_is_type_zephyr(m)) {
2615    if (owl_message_is_personal(m) || owl_message_is_loginout(m)) {
2616      if (owl_message_is_direction_in(m)) {
2617        zperson=short_zuser(owl_message_get_sender(m));
2618      } else {
2619        zperson=short_zuser(owl_message_get_recipient(m));
2620      }
2621      filtname=owl_function_zuserfilt(zperson);
2622      owl_free(zperson);
2623      return(filtname);
2624    }
2625
2626    /* narrow class MESSAGE, instance foo, recip * messages to class, inst */
2627    if (!strcasecmp(owl_message_get_class(m), "message")) {
2628      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m));
2629      return(filtname);
2630    }
2631
2632    /* otherwise narrow to the class */
2633    if (type==0) {
2634      filtname=owl_function_classinstfilt(owl_message_get_class(m), NULL);
2635    } else if (type==1) {
2636      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m));
2637    }
2638    return(filtname);
2639  }
2640
2641  /* pass it off to perl */
2642  if(type) {
2643    argv[0] = "-i";
2644  };
2645  return owl_perlconfig_message_call_method(m, "smartfilter", type ? 1 : 0, argv);
2646}
2647
2648void owl_function_smartzpunt(int type)
2649{
2650  /* Starts a zpunt command based on the current class,instance pair.
2651   * If type=0, uses just class.  If type=1, uses instance as well. */
2652  const owl_view *v;
2653  const owl_message *m;
2654  const char *cmdprefix, *mclass, *minst;
2655  char *cmd;
2656 
2657  v=owl_global_get_current_view(&g);
2658  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
2659
2660  if (!m || owl_view_get_size(v)==0) {
2661    owl_function_error("No message selected\n");
2662    return;
2663  }
2664
2665  /* for now we skip admin messages. */
2666  if (owl_message_is_type_admin(m)
2667      || owl_message_is_loginout(m)
2668      || !owl_message_is_type_zephyr(m)) {
2669    owl_function_error("smartzpunt doesn't support this message type.");
2670    return;
2671  }
2672
2673  mclass = owl_message_get_class(m);
2674  minst = owl_message_get_instance(m);
2675  if (!mclass || !*mclass || *mclass==' '
2676      || (!strcasecmp(mclass, "message") && !strcasecmp(minst, "personal"))
2677      || (type && (!minst || !*minst|| *minst==' '))) {
2678    owl_function_error("smartzpunt can't safely do this for <%s,%s>",
2679                         mclass, minst);
2680  } else {
2681    cmdprefix = "start-command zpunt ";
2682    cmd = owl_malloc(strlen(cmdprefix)+strlen(mclass)+strlen(minst)+10);
2683    strcpy(cmd, cmdprefix);
2684    strcat(cmd, owl_getquoting(mclass));
2685    strcat(cmd, mclass);
2686    strcat(cmd, owl_getquoting(mclass));
2687    if (type) {
2688      strcat(cmd, " ");
2689      strcat(cmd, owl_getquoting(minst));
2690      strcat(cmd, minst);
2691      strcat(cmd, owl_getquoting(minst));
2692    } else {
2693      strcat(cmd, " *");
2694    }
2695    owl_function_command(cmd);
2696    owl_free(cmd);
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_global_set_needrefresh(&g);
2747  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2748  return(0);
2749}
2750
2751void owl_function_show_colors(void)
2752{
2753  owl_fmtext fm;
2754  int i; 
2755 
2756  owl_fmtext_init_null(&fm);
2757  owl_fmtext_append_normal(&fm, "default: ");
2758  owl_fmtext_append_normal_color(&fm, "default\n", OWL_COLOR_DEFAULT, OWL_COLOR_DEFAULT);
2759
2760  owl_fmtext_append_normal(&fm,"red:      ");
2761  owl_fmtext_append_normal_color(&fm, "red\n", OWL_COLOR_RED, OWL_COLOR_DEFAULT);
2762
2763  owl_fmtext_append_normal(&fm,"green:    ");
2764  owl_fmtext_append_normal_color(&fm, "green\n", OWL_COLOR_GREEN, OWL_COLOR_DEFAULT);
2765
2766  owl_fmtext_append_normal(&fm,"yellow:   ");
2767  owl_fmtext_append_normal_color(&fm, "yellow\n", OWL_COLOR_YELLOW, OWL_COLOR_DEFAULT);
2768
2769  owl_fmtext_append_normal(&fm,"blue:     ");
2770  owl_fmtext_append_normal_color(&fm, "blue\n", OWL_COLOR_BLUE, OWL_COLOR_DEFAULT);
2771
2772  owl_fmtext_append_normal(&fm,"magenta:  ");
2773  owl_fmtext_append_normal_color(&fm, "magenta\n", OWL_COLOR_MAGENTA, OWL_COLOR_DEFAULT);
2774
2775  owl_fmtext_append_normal(&fm,"cyan:     ");
2776  owl_fmtext_append_normal_color(&fm, "cyan\n", OWL_COLOR_CYAN, OWL_COLOR_DEFAULT);
2777
2778  owl_fmtext_append_normal(&fm,"white:    ");
2779  owl_fmtext_append_normal_color(&fm, "white\n", OWL_COLOR_WHITE, OWL_COLOR_DEFAULT);
2780
2781  for(i = 8; i < COLORS; ++i) {
2782    char* str1 = owl_sprintf("%4i:     ",i);
2783    char* str2 = owl_sprintf("%i\n",i);
2784    owl_fmtext_append_normal(&fm,str1);
2785    owl_fmtext_append_normal_color(&fm, str2, i, OWL_COLOR_DEFAULT);
2786    owl_free(str1);
2787     owl_free(str2);
2788  }
2789 
2790  owl_function_popless_fmtext(&fm);
2791  owl_fmtext_free(&fm);
2792}
2793
2794/* add the given class, inst, recip to the punt list for filtering.
2795 *   if direction==0 then punt
2796 *   if direction==1 then unpunt
2797 */
2798void owl_function_zpunt(const char *class, const char *inst, const char *recip, int direction)
2799{
2800  char *puntexpr, *classexpr, *instexpr, *recipexpr;
2801  char *quoted;
2802
2803  if (!strcmp(class, "*")) {
2804    classexpr = owl_sprintf("class .*");
2805  } else {
2806    quoted=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2807    owl_text_tr(quoted, ' ', '.');
2808    owl_text_tr(quoted, '\'', '.');
2809    owl_text_tr(quoted, '"', '.');
2810    classexpr = owl_sprintf("class ^(un)*%s(\\.d)*$", quoted);
2811    owl_free(quoted);
2812  }
2813  if (!strcmp(inst, "*")) {
2814    instexpr = owl_sprintf(" and instance .*");
2815  } else {
2816    quoted=owl_text_quote(inst, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2817    owl_text_tr(quoted, ' ', '.');
2818    owl_text_tr(quoted, '\'', '.');
2819    owl_text_tr(quoted, '"', '.');
2820    instexpr = owl_sprintf(" and instance ^(un)*%s(\\.d)*$", quoted);
2821    owl_free(quoted);
2822  }
2823  if (!strcmp(recip, "*")) {
2824    recipexpr = owl_sprintf("");
2825  } else {
2826    if(!strcmp(recip, "%me%")) {
2827      recip = owl_zephyr_get_sender();
2828    }
2829    quoted=owl_text_quote(recip, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
2830    owl_text_tr(quoted, ' ', '.');
2831    owl_text_tr(quoted, '\'', '.');
2832    owl_text_tr(quoted, '"', '.');
2833    recipexpr = owl_sprintf(" and recipient ^%s$", quoted);
2834    owl_free(quoted);
2835  }
2836
2837  puntexpr = owl_sprintf("%s %s %s", classexpr, instexpr, recipexpr);
2838  owl_function_punt(puntexpr, direction);
2839  owl_free(puntexpr);
2840  owl_free(classexpr);
2841  owl_free(instexpr);
2842  owl_free(recipexpr);
2843}
2844
2845void owl_function_punt(const char *filter, int direction)
2846{
2847  owl_filter *f;
2848  owl_list *fl;
2849  int ret, i, j;
2850  fl=owl_global_get_puntlist(&g);
2851
2852  /* first, create the filter */
2853  f=owl_malloc(sizeof(owl_filter));
2854
2855  owl_function_debugmsg("About to filter %s", filter);
2856  ret=owl_filter_init_fromstring(f, "punt-filter", filter);
2857  if (ret) {
2858    owl_function_error("Error creating filter for zpunt");
2859    owl_filter_free(f);
2860    owl_free(f);
2861    return;
2862  }
2863
2864  /* Check for an identical filter */
2865  j=owl_list_get_size(fl);
2866  for (i=0; i<j; i++) {
2867    if (owl_filter_equiv(f, owl_list_get_element(fl, i))) {
2868      owl_function_debugmsg("found an equivalent punt filter");
2869      /* if we're punting, then just silently bow out on this duplicate */
2870      if (direction==0) {
2871        owl_filter_free(f);
2872        owl_free(f);
2873        return;
2874      }
2875
2876      /* if we're unpunting, then remove this filter from the puntlist */
2877      if (direction==1) {
2878        owl_filter_free(owl_list_get_element(fl, i));
2879        owl_list_remove_element(fl, i);
2880        owl_filter_free(f);
2881        owl_free(f);
2882        return;
2883      }
2884    }
2885  }
2886
2887  owl_function_debugmsg("punting");
2888  /* If we're punting, add the filter to the global punt list */
2889  if (direction==0) {
2890    owl_list_append_element(fl, f);
2891  }
2892}
2893
2894void owl_function_activate_keymap(const char *keymap)
2895{
2896  if (!owl_keyhandler_activate(owl_global_get_keyhandler(&g), keymap)) {
2897    owl_function_error("Unable to activate keymap '%s'", keymap);
2898  }
2899}
2900
2901void owl_function_show_keymaps(void)
2902{
2903  owl_list l;
2904  owl_fmtext fm;
2905  const owl_keymap *km;
2906  const owl_keyhandler *kh;
2907  int i, numkm;
2908  const char *kmname;
2909
2910  kh = owl_global_get_keyhandler(&g);
2911  owl_fmtext_init_null(&fm);
2912  owl_fmtext_append_bold(&fm, "Keymaps:   ");
2913  owl_fmtext_append_normal(&fm, "(use 'show keymap <name>' for details)\n");
2914  owl_keyhandler_get_keymap_names(kh, &l);
2915  owl_fmtext_append_list(&fm, &l, "\n", owl_function_keymap_summary);
2916  owl_fmtext_append_normal(&fm, "\n");
2917
2918  numkm = owl_list_get_size(&l);
2919  for (i=0; i<numkm; i++) {
2920    kmname = owl_list_get_element(&l, i);
2921    km = owl_keyhandler_get_keymap(kh, kmname);
2922    owl_fmtext_append_bold(&fm, "\n\n----------------------------------------------------------------------------------------------------\n\n");
2923    owl_keymap_get_details(km, &fm);   
2924  }
2925  owl_fmtext_append_normal(&fm, "\n");
2926 
2927  owl_function_popless_fmtext(&fm);
2928  owl_keyhandler_keymap_namelist_free(&l);
2929  owl_fmtext_free(&fm);
2930}
2931
2932char *owl_function_keymap_summary(const char *name)
2933{
2934  const owl_keymap *km
2935    = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
2936  if (km) return owl_keymap_summary(km);
2937  else return(NULL);
2938}
2939
2940/* TODO: implement for real */
2941void owl_function_show_keymap(const char *name)
2942{
2943  owl_fmtext fm;
2944  const owl_keymap *km;
2945
2946  owl_fmtext_init_null(&fm);
2947  km = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
2948  if (km) {
2949    owl_keymap_get_details(km, &fm);
2950  } else {
2951    owl_fmtext_append_normal(&fm, "No such keymap...\n");
2952  } 
2953  owl_function_popless_fmtext(&fm);
2954  owl_fmtext_free(&fm);
2955}
2956
2957void owl_function_help_for_command(const char *cmdname)
2958{
2959  owl_fmtext fm;
2960
2961  owl_fmtext_init_null(&fm);
2962  owl_cmd_get_help(owl_global_get_cmddict(&g), cmdname, &fm);
2963  owl_function_popless_fmtext(&fm); 
2964  owl_fmtext_free(&fm);
2965}
2966
2967void owl_function_search_start(const char *string, int direction)
2968{
2969  /* direction is OWL_DIRECTION_DOWNWARDS or OWL_DIRECTION_UPWARDS or
2970   * OWL_DIRECTION_NONE */
2971  owl_regex re;
2972
2973  if (string && owl_regex_create_quoted(&re, string) == 0) {
2974    owl_global_set_search_re(&g, &re);
2975    owl_regex_free(&re);
2976  } else {
2977    owl_global_set_search_re(&g, NULL);
2978  }
2979
2980  if (direction == OWL_DIRECTION_NONE)
2981    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
2982  else
2983    owl_function_search_helper(0, direction);
2984}
2985
2986void owl_function_search_continue(int direction)
2987{
2988  /* direction is OWL_DIRECTION_DOWNWARDS or OWL_DIRECTION_UPWARDS */
2989  owl_function_search_helper(1, direction);
2990}
2991
2992void owl_function_search_helper(int mode, int direction)
2993{
2994  /* move to a message that contains the string.  If direction is
2995   * OWL_DIRECTION_DOWNWARDS then search fowards, if direction is
2996   * OWL_DIRECTION_UPWARDS then search backwards.
2997   *
2998   * If mode==0 then it will stay on the current message if it
2999   * contains the string.
3000   */
3001
3002  const owl_view *v;
3003  int viewsize, i, curmsg, start;
3004  owl_message *m;
3005
3006  v=owl_global_get_current_view(&g);
3007  viewsize=owl_view_get_size(v);
3008  curmsg=owl_global_get_curmsg(&g);
3009 
3010  if (viewsize==0) {
3011    owl_function_error("No messages present");
3012    return;
3013  }
3014
3015  if (mode==0) {
3016    start=curmsg;
3017  } else if (direction==OWL_DIRECTION_DOWNWARDS) {
3018    start=curmsg+1;
3019  } else {
3020    start=curmsg-1;
3021  }
3022
3023  /* bounds check */
3024  if (start>=viewsize || start<0) {
3025    owl_function_error("No further matches found");
3026    return;
3027  }
3028
3029  for (i=start; i<viewsize && i>=0;) {
3030    m=owl_view_get_element(v, i);
3031    if (owl_message_search(m, owl_global_get_search_re(&g))) {
3032      owl_global_set_curmsg(&g, i);
3033      owl_function_calculate_topmsg(direction);
3034      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3035      if (direction==OWL_DIRECTION_DOWNWARDS) {
3036        owl_global_set_direction_downwards(&g);
3037      } else {
3038        owl_global_set_direction_upwards(&g);
3039      }
3040      return;
3041    }
3042    if (direction==OWL_DIRECTION_DOWNWARDS) {
3043      i++;
3044    } else {
3045      i--;
3046    }
3047    owl_function_mask_sigint(NULL);
3048    if(owl_global_is_interrupted(&g)) {
3049      owl_global_unset_interrupted(&g);
3050      owl_function_unmask_sigint(NULL);
3051      owl_function_makemsg("Search interrupted!");
3052      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3053      return;
3054    }
3055    owl_function_unmask_sigint(NULL);
3056  }
3057  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3058  owl_function_error("No matches found");
3059}
3060
3061/* strips formatting from ztext and returns the unformatted text.
3062 * caller is responsible for freeing. */
3063char *owl_function_ztext_stylestrip(const char *zt)
3064{
3065  owl_fmtext fm;
3066  char *plaintext;
3067
3068  owl_fmtext_init_null(&fm);
3069  owl_fmtext_append_ztext(&fm, zt);
3070  plaintext = owl_fmtext_print_plain(&fm);
3071  owl_fmtext_free(&fm);
3072  return(plaintext);
3073}
3074
3075/* Popup a buddylisting.  If filename is NULL use the default .anyone */
3076void owl_function_buddylist(int aim, int zephyr, const char *filename)
3077{
3078  int i, j, idle;
3079  int interrupted = 0;
3080  owl_fmtext fm;
3081  const owl_buddylist *bl;
3082  const owl_buddy *b;
3083  char *timestr;
3084#ifdef HAVE_LIBZEPHYR
3085  int x;
3086  owl_list anyone;
3087  const char *user;
3088  char *tmp;
3089  ZLocations_t location[200];
3090  int numlocs, ret;
3091#endif
3092
3093  owl_fmtext_init_null(&fm);
3094
3095  /* AIM first */
3096  if (aim && owl_global_is_aimloggedin(&g)) {
3097    bl=owl_global_get_buddylist(&g);
3098
3099    owl_fmtext_append_bold(&fm, "AIM users logged in:\n");
3100    /* we're assuming AIM for now */
3101    j=owl_buddylist_get_size(bl);
3102    for (i=0; i<j; i++) {
3103      b=owl_buddylist_get_buddy_n(bl, i);
3104      idle=owl_buddy_get_idle_time(b);
3105      if (idle!=0) {
3106        timestr=owl_util_minutes_to_timestr(idle);
3107      } else {
3108        timestr=owl_strdup("");
3109      }
3110      owl_fmtext_appendf_normal(&fm, "  %-20.20s %-12.12s\n", owl_buddy_get_name(b), timestr);
3111      owl_free(timestr);
3112    }
3113  }
3114
3115#ifdef HAVE_LIBZEPHYR
3116  if (zephyr) {
3117    if(!owl_global_is_havezephyr(&g)) {
3118      owl_function_error("Zephyr currently not available.");
3119    } else {
3120      owl_fmtext_append_bold(&fm, "Zephyr users logged in:\n");
3121      owl_list_create(&anyone);
3122      ret=owl_zephyr_get_anyone_list(&anyone, filename);
3123      if (ret) {
3124        if (errno == ENOENT) {
3125          owl_fmtext_append_normal(&fm, " You have not added any zephyr buddies.  Use the\n");
3126          owl_fmtext_append_normal(&fm, " command ':addbuddy zephyr ");
3127          owl_fmtext_append_bold(  &fm, "<username>");
3128          owl_fmtext_append_normal(&fm, "'.\n");
3129        } else {
3130          owl_fmtext_append_normal(&fm, " Could not read zephyr buddies from the .anyone file.\n");
3131        }
3132      } else {
3133        j=owl_list_get_size(&anyone);
3134        for (i=0; i<j; i++) {
3135          user=owl_list_get_element(&anyone, i);
3136          ret=ZLocateUser(zstr(user), &numlocs, ZAUTH);
3137
3138          owl_function_mask_sigint(NULL);
3139          if(owl_global_is_interrupted(&g)) {
3140            interrupted = 1;
3141            owl_global_unset_interrupted(&g);
3142            owl_function_unmask_sigint(NULL);
3143            owl_function_makemsg("Interrupted!");
3144            break;
3145          }
3146
3147          if (ret!=ZERR_NONE) {
3148          owl_function_unmask_sigint(NULL);
3149            owl_function_error("Error getting location for %s", user);
3150            continue;
3151          }
3152
3153          numlocs=200;
3154          ret=ZGetLocations(location, &numlocs);
3155          if (ret==0) {
3156            for (x=0; x<numlocs; x++) {
3157              tmp=short_zuser(user);
3158              owl_fmtext_appendf_normal(&fm, "  %-10.10s %-24.24s %-12.12s  %20.20s\n",
3159                                        tmp,
3160                                        location[x].host,
3161                                        location[x].tty,
3162                                        location[x].time);
3163              owl_free(tmp);
3164            }
3165            if (numlocs>=200) {
3166              owl_fmtext_append_normal(&fm, "  Too many locations found for this user, truncating.\n");
3167            }
3168          }
3169        }
3170      }
3171      owl_list_free_all(&anyone, owl_free);
3172    }
3173  }
3174#endif
3175
3176  if(aim && zephyr) {
3177      if(owl_perlconfig_is_function("BarnOwl::Hooks::_get_blist")) {
3178          char * perlblist = owl_perlconfig_execute("BarnOwl::Hooks::_get_blist()");
3179          if(perlblist) {
3180              owl_fmtext_append_ztext(&fm, perlblist);
3181              owl_free(perlblist);
3182          }
3183      }
3184  }
3185
3186  if(!interrupted) {
3187    owl_function_popless_fmtext(&fm);
3188  }
3189  owl_fmtext_free(&fm);
3190}
3191
3192/* Dump messages in the current view to the file 'filename'. */
3193void owl_function_dump(const char *filename) 
3194{
3195  int i, j;
3196  owl_message *m;
3197  const owl_view *v;
3198  FILE *file;
3199  char *plaintext;
3200
3201  v=owl_global_get_current_view(&g);
3202
3203  /* in the future make it ask yes/no */
3204  /*
3205  ret=stat(filename, &sbuf);
3206  if (!ret) {
3207    ret=owl_function_askyesno("File exists, continue? [Y/n]");
3208    if (!ret) return;
3209  }
3210  */
3211
3212  file=fopen(filename, "w");
3213  if (!file) {
3214    owl_function_error("Error opening file");
3215    return;
3216  }
3217
3218  j=owl_view_get_size(v);
3219  for (i=0; i<j; i++) {
3220    m=owl_view_get_element(v, i);
3221    plaintext = owl_strip_format_chars(owl_message_get_text(m));
3222    if (plaintext) {
3223      fputs(plaintext, file);
3224      owl_free(plaintext);
3225    }
3226  }
3227  fclose(file);
3228  owl_function_makemsg("Messages dumped to %s", filename);
3229}
3230
3231void owl_function_do_newmsgproc(void)
3232{
3233  if (owl_global_get_newmsgproc(&g) && strcmp(owl_global_get_newmsgproc(&g), "")) {
3234    /* if there's a process out there, we need to check on it */
3235    if (owl_global_get_newmsgproc_pid(&g)) {
3236      owl_function_debugmsg("Checking on newmsgproc pid==%i", owl_global_get_newmsgproc_pid(&g));
3237      owl_function_debugmsg("Waitpid return is %i", waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG));
3238      waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG);
3239      if (waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG)==-1) {
3240        /* it exited */
3241        owl_global_set_newmsgproc_pid(&g, 0);
3242        owl_function_debugmsg("newmsgproc exited");
3243      } else {
3244        owl_function_debugmsg("newmsgproc did not exit");
3245      }
3246    }
3247   
3248    /* if it exited, fork & exec a new one */
3249    if (owl_global_get_newmsgproc_pid(&g)==0) {
3250      pid_t i;
3251      int myargc;
3252      i=fork();
3253      if (i) {
3254        /* parent set the child's pid */
3255        owl_global_set_newmsgproc_pid(&g, i);
3256        owl_function_debugmsg("I'm the parent and I started a new newmsgproc with pid %i", i);
3257      } else {
3258        /* child exec's the program */
3259        char **parsed;
3260        parsed=owl_parseline(owl_global_get_newmsgproc(&g), &myargc);
3261        if (myargc < 0) {
3262          owl_function_debugmsg("Could not parse newmsgproc '%s': unbalanced quotes?", owl_global_get_newmsgproc(&g));
3263        }
3264        if (myargc <= 0) {
3265          _exit(127);
3266        }
3267        parsed=owl_realloc(parsed, sizeof(*parsed) * (myargc+1));
3268        parsed[myargc] = NULL;
3269       
3270        owl_function_debugmsg("About to exec \"%s\" with %d arguments", parsed[0], myargc);
3271       
3272        execvp(parsed[0], parsed);
3273       
3274       
3275        /* was there an error exec'ing? */
3276        owl_function_debugmsg("Cannot run newmsgproc '%s': cannot exec '%s': %s", 
3277                              owl_global_get_newmsgproc(&g), parsed[0], strerror(errno));
3278        _exit(127);
3279      }
3280    }
3281  }
3282}
3283
3284/* print the xterm escape sequence to raise the window */
3285void owl_function_xterm_raise(void)
3286{
3287  printf("\033[5t");
3288}
3289
3290/* print the xterm escape sequence to deiconify the window */
3291void owl_function_xterm_deiconify(void)
3292{
3293  printf("\033[1t");
3294}
3295
3296/* Add the specified command to the startup file.  Eventually this
3297 * should be clever, and rewriting settings that will obviosly
3298 * override earlier settings with 'set' 'bindkey' and 'alias'
3299 * commands.  For now though we just remove any line that would
3300 * duplicate this one and then append this line to the end of
3301 * startupfile.
3302 */
3303void owl_function_addstartup(const char *buff)
3304{
3305  FILE *file;
3306  const char *filename;
3307
3308  filename=owl_global_get_startupfile(&g);
3309  file=fopen(filename, "a");
3310  if (!file) {
3311    owl_function_error("Error opening startupfile for new command");
3312    return;
3313  }
3314
3315  /* delete earlier copies */
3316  owl_util_file_deleteline(filename, buff, 1);
3317
3318  /* add this line */
3319  fprintf(file, "%s\n", buff);
3320
3321  fclose(file);
3322}
3323
3324/* Remove the specified command from the startup file. */
3325void owl_function_delstartup(const char *buff)
3326{
3327  const char *filename;
3328  filename=owl_global_get_startupfile(&g);
3329  owl_util_file_deleteline(filename, buff, 1);
3330}
3331
3332/* Execute owl commands from the given filename.  If the filename
3333 * is NULL, use the default owl startup commands file.
3334 */
3335void owl_function_source(const char *filename)
3336{
3337  char *path;
3338  FILE *file;
3339  char buff[LINE];
3340  int fail_silent = 0;
3341
3342  if (!filename) {
3343    fail_silent = 1;
3344    path = owl_strdup(owl_global_get_startupfile(&g));
3345  } else {
3346    path = owl_util_makepath(filename);
3347  }
3348  file=fopen(path, "r");
3349  owl_free(path);
3350  if (!file) {
3351    if (!fail_silent) {
3352      owl_function_error("Error opening file: %s", filename);
3353    }
3354    return;
3355  }
3356  while (fgets(buff, LINE, file)!=NULL) {
3357    if (buff[0] == '\0' || buff[0] == '#') continue;
3358    if (buff[strlen(buff) - 1] == '\n')
3359      buff[strlen(buff) - 1] = '\0';
3360    owl_function_command(buff);
3361  }
3362  fclose(file);
3363}
3364
3365void owl_function_change_style(owl_view *v, const char *stylename)
3366{
3367  const owl_style *s;
3368
3369  s=owl_global_get_style_by_name(&g, stylename);
3370  if (!s) {
3371    owl_function_error("No style named %s", stylename);
3372    return;
3373  }
3374  owl_view_set_style(v, s);
3375  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
3376  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
3377  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3378}
3379
3380void owl_function_toggleoneline(void)
3381{
3382  owl_view *v;
3383  const owl_style *s;
3384
3385  v=owl_global_get_current_view(&g);
3386  s=owl_view_get_style(v);
3387
3388  if (!owl_style_matches_name(s, "oneline")) {
3389    owl_function_change_style(v, "oneline");
3390  } else {
3391    owl_function_change_style(v, owl_global_get_default_style(&g));
3392  }
3393
3394  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
3395  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
3396  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3397}
3398
3399void owl_function_error(const char *fmt, ...)
3400{
3401  static int in_error = 0;
3402  va_list ap;
3403  char *buff;
3404  const char *nl;
3405
3406  if (++in_error > 2) {
3407    /* More than two nested errors, bail immediately. */
3408    in_error--;
3409    return;
3410  }
3411
3412  va_start(ap, fmt);
3413  buff = g_strdup_vprintf(fmt, ap);
3414  va_end(ap);
3415
3416  owl_function_debugmsg("ERROR: %s", buff);
3417  owl_function_log_err(buff);
3418
3419  nl = strchr(buff, '\n');
3420
3421  /*
3422    Showing admin messages triggers a lot of code. If we have a
3423    recursive error call, that's the most likely candidate, so
3424    suppress the call in that case, to try to avoid infinite looping.
3425  */
3426
3427  if(nl && *(nl + 1) && in_error == 1) {
3428    /* Multiline error */
3429    owl_function_adminmsg("ERROR", buff);
3430  } else {
3431    owl_function_makemsg("[Error] %s", buff);
3432  }
3433
3434  owl_free(buff);
3435
3436  in_error--;
3437}
3438
3439void owl_function_log_err(const char *string)
3440{
3441  char *date;
3442  time_t now;
3443  char *buff;
3444
3445  now=time(NULL);
3446  date=owl_strdup(ctime(&now));
3447  date[strlen(date)-1]='\0';
3448
3449  buff = owl_sprintf("%s %s", date, string);
3450
3451  owl_errqueue_append_err(owl_global_get_errqueue(&g), buff);
3452
3453  owl_free(buff);
3454  owl_free(date);
3455}
3456
3457void owl_function_showerrs(void)
3458{
3459  owl_fmtext fm;
3460
3461  owl_fmtext_init_null(&fm);
3462  owl_fmtext_append_normal(&fm, "Errors:\n\n");
3463  owl_errqueue_to_fmtext(owl_global_get_errqueue(&g), &fm);
3464  owl_function_popless_fmtext(&fm);
3465}
3466
3467void owl_function_makemsg(const char *fmt, ...)
3468{
3469  va_list ap;
3470  char buff[2048];
3471
3472  if (!owl_global_get_curs_msgwin(&g)) return;
3473
3474  va_start(ap, fmt);
3475  werase(owl_global_get_curs_msgwin(&g));
3476 
3477  vsnprintf(buff, 2048, fmt, ap);
3478  owl_function_debugmsg("makemsg: %s", buff);
3479  waddstr(owl_global_get_curs_msgwin(&g), buff); 
3480  wnoutrefresh(owl_global_get_curs_msgwin(&g));
3481  owl_global_set_needrefresh(&g);
3482  va_end(ap);
3483}
3484
3485/* get locations for everyone in .anyone.  If 'notify' is '1' then
3486 * send a pseudo login or logout message for everyone not in sync with
3487 * the global zephyr buddy list.  The list is updated regardless of
3488 * the status of 'notify'.
3489 */
3490void owl_function_zephyr_buddy_check(int notify)
3491{
3492#ifdef HAVE_LIBZEPHYR
3493  int i, j;
3494  owl_list anyone;
3495  owl_message *m;
3496  owl_zbuddylist *zbl;
3497  const char *user;
3498  ZLocations_t location[200];
3499  int numlocs, ret;
3500
3501  if (!owl_global_is_havezephyr(&g)) return;
3502
3503  zbl=owl_global_get_zephyr_buddylist(&g);
3504
3505  owl_list_create(&anyone);
3506  ret=owl_zephyr_get_anyone_list(&anyone, NULL);
3507
3508  j=owl_list_get_size(&anyone);
3509  for (i=0; i<j; i++) {
3510    user=owl_list_get_element(&anyone, i);
3511    ret=ZLocateUser(zstr(user), &numlocs, ZAUTH);
3512    if (ret!=ZERR_NONE) {
3513      owl_function_error("Error getting location for %s", user);
3514      continue;
3515    }
3516    numlocs=200;
3517    ret=ZGetLocations(location, &numlocs);
3518    if (ret==0) {
3519      if ((numlocs>0) && !owl_zbuddylist_contains_user(zbl, user)) {
3520        /* Send a PSEUDO LOGIN! */
3521        if (notify) {
3522          m=owl_malloc(sizeof(owl_message));
3523          owl_message_create_pseudo_zlogin(m, 0, user, location[0].host, location[0].time, location[0].tty);
3524          owl_global_messagequeue_addmsg(&g, m);
3525        }
3526        owl_zbuddylist_adduser(zbl, user);
3527        owl_function_debugmsg("owl_function_zephyr_buddy_check: login for %s ", user);
3528      } else if ((numlocs==0) && owl_zbuddylist_contains_user(zbl, user)) {
3529        /* I don't think this ever happens (if there are 0 locations we should get an error from
3530         * ZGetLocations)
3531         */
3532        owl_function_error("owl_function_zephyr_buddy_check: exceptional case logout for %s ",user);
3533      }
3534    } else if ((ret==ZERR_NOLOCATIONS) && owl_zbuddylist_contains_user(zbl, user)) {
3535      /* Send a PSEUDO LOGOUT! */
3536      if (notify) {
3537        m=owl_malloc(sizeof(owl_message));
3538        owl_message_create_pseudo_zlogin(m, 1, user, "", "", "");
3539        owl_global_messagequeue_addmsg(&g, m);
3540      }
3541      owl_zbuddylist_deluser(zbl, user);
3542      owl_function_debugmsg("owl_function_zephyr_buddy_check: logout for %s ",user);
3543    }
3544  }
3545
3546  owl_list_free_all(&anyone, owl_free);
3547#endif
3548}
3549
3550void owl_function_aimsearch_results(const char *email, owl_list *namelist)
3551{
3552  owl_fmtext fm;
3553  int i, j;
3554
3555  owl_fmtext_init_null(&fm);
3556  owl_fmtext_append_normal(&fm, "AIM screennames associated with ");
3557  owl_fmtext_append_normal(&fm, email);
3558  owl_fmtext_append_normal(&fm, ":\n");
3559
3560  j=owl_list_get_size(namelist);
3561  for (i=0; i<j; i++) {
3562    owl_fmtext_append_normal(&fm, "  ");
3563    owl_fmtext_append_normal(&fm, owl_list_get_element(namelist, i));
3564    owl_fmtext_append_normal(&fm, "\n");
3565  }
3566
3567  owl_function_popless_fmtext(&fm);
3568  owl_fmtext_free(&fm);
3569}
3570
3571int owl_function_get_color_count(void)
3572{
3573     return COLORS;
3574}
3575
3576void owl_function_mask_sigint(sigset_t *oldmask) {
3577  sigset_t intr;
3578
3579  sigemptyset(&intr);
3580  sigaddset(&intr, SIGINT);
3581  sigprocmask(SIG_BLOCK, &intr, oldmask);
3582}
3583
3584void owl_function_unmask_sigint(sigset_t *oldmask) {
3585  sigset_t intr;
3586
3587  sigemptyset(&intr);
3588  sigaddset(&intr, SIGINT);
3589  sigprocmask(SIG_UNBLOCK, &intr, oldmask);
3590}
3591
3592void _owl_function_mark_message(const owl_message *m)
3593{
3594  if (m)
3595    owl_global_set_markedmsgid(&g, owl_message_get_id(m));
3596}
3597
3598void owl_function_mark_message(void)
3599{
3600  const owl_message *m;
3601  const owl_view *v;
3602
3603  v=owl_global_get_current_view(&g);
3604
3605  /* bail if there's no current message */
3606  if (owl_view_get_size(v) < 1) {
3607    owl_function_error("No messages to mark");
3608    return;
3609  }
3610
3611  /* mark the message */
3612  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
3613  _owl_function_mark_message(m);
3614  owl_function_makemsg("Mark set");
3615}
3616
3617void owl_function_swap_cur_marked(void)
3618{
3619  int marked_id;
3620  const owl_message *m;
3621  const owl_view *v;
3622
3623  marked_id=owl_global_get_markedmsgid(&g);
3624  if (marked_id == -1) {
3625    owl_function_error("Mark not set.");
3626    return;
3627  }
3628
3629  v=owl_global_get_current_view(&g);
3630  /* bail if there's no current message */
3631  if (owl_view_get_size(v) < 1) {
3632    return;
3633  }
3634
3635  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
3636  _owl_function_mark_message(m);
3637  owl_global_set_curmsg(&g, owl_view_get_nearest_to_msgid(v, marked_id));
3638  owl_function_calculate_topmsg(OWL_DIRECTION_NONE);
3639  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
3640  owl_global_set_direction_downwards(&g);
3641}
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