source: owl.c @ b67ab6b

barnowl_perlaimdebianrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since b67ab6b was b67ab6b, checked in by Nelson Elhage <nelhage@mit.edu>, 13 years ago
Implement back-compat with old-style owl::format_msg() styles
  • Property mode set to 100644
File size: 25.3 KB
Line 
1/*  Copyright (c) 2004 James Kretchmar. All rights reserved.
2 *
3 *  Redistribution and use in source and binary forms, with or without
4 *  modification, are permitted provided that the following conditions are
5 *  met:
6 * 
7 *    * Redistributions of source code must retain the above copyright
8 *      notice, this list of conditions and the following disclaimer.
9 * 
10 *    * Redistributions in binary form must reproduce the above copyright
11 *      notice, this list of conditions and the following disclaimer in
12 *      the documentation and/or other materials provided with the
13 *      distribution.
14 * 
15 *    * Redistributions in any form must be accompanied by information on
16 *      how to obtain complete source code for the Owl software and any
17 *      accompanying software that uses the Owl software. The source code
18 *      must either be included in the distribution or be available for no
19 *      more than the cost of distribution plus a nominal fee, and must be
20 *      freely redistributable under reasonable conditions. For an
21 *      executable file, complete source code means the source code for
22 *      all modules it contains. It does not include source code for
23 *      modules or files that typically accompany the major components of
24 *      the operating system on which the executable file runs.
25 * 
26 *
27 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
28 *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
29 *  WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
30 *  NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
31 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
34 *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
35 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
36 *  OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
37 *  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#include <stdio.h>
41#include <unistd.h>
42#include <stdlib.h>
43#include <string.h>
44#include <signal.h>
45#include <time.h>
46#include <sys/param.h>
47#include <sys/types.h>
48#include <sys/time.h>
49#include <termios.h>
50#include <sys/stat.h>
51#include "owl.h"
52
53#if OWL_STDERR_REDIR
54#ifdef HAVE_SYS_IOCTL_H
55#include <sys/ioctl.h>
56#endif
57#ifdef HAVE_SYS_FILIO_H
58#include <sys/filio.h>
59#endif
60int stderr_replace(void);
61#endif
62
63static const char fileIdent[] = "$Id$";
64
65owl_global g;
66
67int main(int argc, char **argv, char **env)
68{
69  WINDOW *recwin, *sepwin, *typwin, *msgwin;
70  owl_editwin *tw;
71  owl_popwin *pw;
72  int ret, initialsubs, debug, argcsave, followlast;
73  int newmsgs, nexttimediff;
74  struct sigaction sigact;
75  char *configfile, *tty, *perlout, *perlerr, **argvsave, buff[LINE], startupmsg[LINE];
76  char *confdir;
77  owl_filter *f;
78  owl_style *s;
79  time_t nexttime, now;
80  struct tm *today;
81  char *dir;
82  struct termios tio;
83  owl_message *m;
84#if OWL_STDERR_REDIR
85  int newstderr;
86#endif
87
88  argcsave=argc;
89  argvsave=argv;
90  configfile=NULL;
91  confdir = NULL;
92  tty=NULL;
93  debug=0;
94  initialsubs=1;
95  if (argc>0) {
96    argv++;
97    argc--;
98  }
99  while (argc>0) {
100    if (!strcmp(argv[0], "-n")) {
101      initialsubs=0;
102      argv++;
103      argc--;
104    } else if (!strcmp(argv[0], "-c")) {
105      if (argc<2) {
106        fprintf(stderr, "Too few arguments to -c\n");
107        usage();
108        exit(1);
109      }
110      configfile=argv[1];
111      argv+=2;
112      argc-=2;
113    } else if (!strcmp(argv[0], "-t")) {
114      if (argc<2) {
115        fprintf(stderr, "Too few arguments to -t\n");
116        usage();
117        exit(1);
118      }
119      tty=argv[1];
120      argv+=2;
121      argc-=2;
122    } else if (!strcmp(argv[0], "-s")){
123      if (argc<2) {
124        fprintf(stderr, "Too few arguments to -s\n");
125        usage();
126        exit(1);
127      }
128      confdir = argv[1];
129      argv+=2;
130      argc-=2;
131    } else if (!strcmp(argv[0], "-d")) {
132      debug=1;
133      argv++;
134      argc--;
135    } else if (!strcmp(argv[0], "-D")) {
136      debug=1;
137      unlink(OWL_DEBUG_FILE);
138      argv++;
139      argc--;
140    } else if (!strcmp(argv[0], "-v")) {
141      printf("This is barnowl version %s\n", OWL_VERSION_STRING);
142      exit(0);
143    } else {
144      fprintf(stderr, "Uknown argument\n");
145      usage();       
146      exit(1);
147    }
148  }
149
150  owl_function_debugmsg("startup: Finished parsing arguments");
151
152  /* signal handler */
153  /*sigact.sa_handler=sig_handler;*/
154  sigact.sa_sigaction=sig_handler;
155  sigemptyset(&sigact.sa_mask);
156  sigact.sa_flags=SA_SIGINFO;
157  sigaction(SIGWINCH, &sigact, NULL);
158  sigaction(SIGALRM, &sigact, NULL);
159  sigaction(SIGPIPE, &sigact, NULL);
160  sigaction(SIGTERM, &sigact, NULL);
161  sigaction(SIGHUP, &sigact, NULL);
162
163  /* save initial terminal settings */
164  tcgetattr(0, owl_global_get_startup_tio(&g));
165
166  /* turn ISTRIP off */
167  tcgetattr(0, &tio);
168  tio.c_iflag &= ~ISTRIP;
169  tcsetattr(0, TCSAFLUSH, &tio);
170
171  /* screen init */
172  if (!getenv("TERMINFO")) {
173    owl_function_debugmsg("startup: Not setting TERMINFO");
174  } else {
175    owl_function_debugmsg("startup: leaving TERMINFO as %s from envrionment", getenv("TERMINFO"));
176  }
177  initscr();
178  start_color();
179#ifdef HAVE_USE_DEFAULT_COLORS
180  use_default_colors();
181#endif
182  raw();
183  noecho();
184
185  /* define simple color pairs */
186  if (has_colors() && COLOR_PAIRS>=8) {
187    int bg = COLOR_BLACK;
188#ifdef HAVE_USE_DEFAULT_COLORS
189    bg = -1;
190#endif
191    init_pair(OWL_COLOR_BLACK,   COLOR_BLACK,   bg);
192    init_pair(OWL_COLOR_RED,     COLOR_RED,     bg);
193    init_pair(OWL_COLOR_GREEN,   COLOR_GREEN,   bg);
194    init_pair(OWL_COLOR_YELLOW,  COLOR_YELLOW,  bg);
195    init_pair(OWL_COLOR_BLUE,    COLOR_BLUE,    bg);
196    init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, bg);
197    init_pair(OWL_COLOR_CYAN,    COLOR_CYAN,    bg);
198    init_pair(OWL_COLOR_WHITE,   COLOR_WHITE,   bg);
199  }
200
201  /* owl global init */
202  owl_global_init(&g);
203  if (debug) owl_global_set_debug_on(&g);
204  if (confdir) owl_global_set_confdir(&g, confdir);
205  owl_function_debugmsg("startup: first available debugging message");
206  owl_global_set_startupargs(&g, argcsave, argvsave);
207  owl_global_set_haveaim(&g);
208
209  /* prepare stdin dispatch */
210  {
211    owl_dispatch *d = owl_malloc(sizeof(owl_dispatch));
212    d->fd = fileno(stdin);
213    d->cfunc = &owl_process_input;
214    d->pfunc = NULL;
215    owl_select_add_dispatch(d);
216  }
217 
218#ifdef HAVE_LIBZEPHYR
219  /* zephyr init */
220  ret=owl_zephyr_initialize();
221  if (!ret) {
222    owl_dispatch *d = owl_malloc(sizeof(owl_dispatch));
223    d->fd = ZGetFD();
224    d->cfunc = &owl_zephyr_process_events;
225    d->pfunc = NULL;
226    owl_select_add_dispatch(d);
227    owl_global_set_havezephyr(&g);
228  }
229
230#endif
231
232#if OWL_STDERR_REDIR
233  /* Do this only after we've started curses up... */
234  owl_function_debugmsg("startup: doing stderr redirection");
235  newstderr = stderr_replace();
236  owl_muxevents_add(owl_global_get_muxevents(&g), newstderr, OWL_MUX_READ,
237                    stderr_redirect_handler, NULL);
238#endif   
239
240  /* create the owl directory, in case it does not exist */
241  owl_function_debugmsg("startup: creating owl directory, if not present");
242  dir=owl_global_get_confdir(&g);
243  mkdir(dir, S_IRWXU);
244
245  /* set the tty, either from the command line, or by figuring it out */
246  owl_function_debugmsg("startup: setting tty name");
247  if (tty) {
248    owl_global_set_tty(&g, tty);
249  } else {
250    owl_global_set_tty(&g, owl_util_get_default_tty());
251  }
252
253  /* Initialize perl */
254  owl_function_debugmsg("startup: processing config file");
255  owl_context_set_readconfig(owl_global_get_context(&g));
256  perlerr=owl_perlconfig_initperl(configfile);
257  if (perlerr) {
258    endwin();
259    owl_function_error("Internal perl error: %s\n", perlerr);
260    fprintf(stderr, "Internal perl error: %s\n", perlerr);
261    fflush(stderr);
262    printf("Internal perl error: %s\n", perlerr);
263    fflush(stdout);
264    exit(1);
265  }
266
267  /* setup the default filters */
268  /* the personal filter will need to change again when AIM chat's are
269   *  included.  Also, there should be an %aimme% */
270  owl_function_debugmsg("startup: creating default filters");
271  f=owl_malloc(sizeof(owl_filter));
272  owl_filter_init_fromstring(f, "personal", "isprivate ^true$ and ( not type ^zephyr$"
273                             " or ( class ^message and"
274                             " ( instance ^personal$ or instance ^urgent$ ) ) )");
275  owl_list_append_element(owl_global_get_filterlist(&g), f);
276
277  f=owl_malloc(sizeof(owl_filter));
278  owl_filter_init_fromstring(f, "wordwrap", "not ( type ^admin$ or type ^zephyr$ ) ");
279  owl_list_append_element(owl_global_get_filterlist(&g), f);
280
281  f=owl_malloc(sizeof(owl_filter));
282  owl_filter_init_fromstring(f, "trash", "class ^mail$ or opcode ^ping$ or type ^admin$ or ( not login ^none$ )");
283  owl_list_append_element(owl_global_get_filterlist(&g), f);
284
285  f=owl_malloc(sizeof(owl_filter));
286  owl_filter_init_fromstring(f, "ping", "opcode ^ping$");
287  owl_list_append_element(owl_global_get_filterlist(&g), f);
288
289  f=owl_malloc(sizeof(owl_filter));
290  owl_filter_init_fromstring(f, "auto", "opcode ^auto$");
291  owl_list_append_element(owl_global_get_filterlist(&g), f);
292
293  f=owl_malloc(sizeof(owl_filter));
294  owl_filter_init_fromstring(f, "login", "not login ^none$");
295  owl_list_append_element(owl_global_get_filterlist(&g), f);
296
297  f=owl_malloc(sizeof(owl_filter));
298  owl_filter_init_fromstring(f, "reply-lockout", "class ^noc or class ^mail$");
299  owl_list_append_element(owl_global_get_filterlist(&g), f);
300
301  f=owl_malloc(sizeof(owl_filter));
302  owl_filter_init_fromstring(f, "out", "direction ^out$");
303  owl_list_append_element(owl_global_get_filterlist(&g), f);
304
305  f=owl_malloc(sizeof(owl_filter));
306  owl_filter_init_fromstring(f, "aim", "type ^aim$");
307  owl_list_append_element(owl_global_get_filterlist(&g), f);
308
309  f=owl_malloc(sizeof(owl_filter));
310  owl_filter_init_fromstring(f, "zephyr", "type ^zephyr$");
311  owl_list_append_element(owl_global_get_filterlist(&g), f);
312
313  f=owl_malloc(sizeof(owl_filter));
314  owl_filter_init_fromstring(f, "none", "false");
315  owl_list_append_element(owl_global_get_filterlist(&g), f);
316
317  f=owl_malloc(sizeof(owl_filter));
318  owl_filter_init_fromstring(f, "all", "true");
319  owl_list_append_element(owl_global_get_filterlist(&g), f);
320
321  /* set the current view */
322  owl_function_debugmsg("startup: setting the current view");
323  owl_view_create(owl_global_get_current_view(&g), "main", f, owl_global_get_style_by_name(&g, "default"));
324
325  /* AIM init */
326  owl_function_debugmsg("startup: doing AIM initialization");
327  owl_aim_init();
328
329  /* execute the startup function in the configfile */
330  owl_function_debugmsg("startup: executing perl startup, if applicable");
331  perlout = owl_perlconfig_execute("BarnOwl::Hooks::_startup();");
332  if (perlout) owl_free(perlout);
333
334  /* hold on to the window names for convenience */
335  msgwin=owl_global_get_curs_msgwin(&g);
336  recwin=owl_global_get_curs_recwin(&g);
337  sepwin=owl_global_get_curs_sepwin(&g);
338  typwin=owl_global_get_curs_typwin(&g);
339  tw=owl_global_get_typwin(&g);
340
341  /* welcome message */
342  owl_function_debugmsg("startup: creating splash message");
343  strcpy(startupmsg, "-----------------------------------------------------------------------\n");
344  sprintf(buff,      "Welcome to barnowl version %s.  Press 'h' for on-line help.            \n", OWL_VERSION_STRING);
345  strcat(startupmsg, buff);
346  strcat(startupmsg, "                                                                       \n");
347  strcat(startupmsg, "This is a development build of barnowl. If you are using this          \n");
348  strcat(startupmsg, "build regularly, please add yourself to barnowl-users@mit.edu          \n");
349  strcat(startupmsg, "                                                                 ^ ^   \n");
350  strcat(startupmsg, "                                                                 OvO   \n");
351  strcat(startupmsg, "Please report any bugs to dirty-owl-hackers@mit.edu             (   )  \n");
352  strcat(startupmsg, "-----------------------------------------------------------------m-m---\n");
353  owl_function_adminmsg("", startupmsg);
354  sepbar(NULL);
355
356  /* process the startup file */
357  owl_function_debugmsg("startup: processing startup file");
358  owl_function_source(NULL);
359
360  wrefresh(sepwin);
361
362  /* load zephyr subs */
363  if (initialsubs) {
364    int ret2;
365    owl_function_debugmsg("startup: loading initial zephyr subs");
366
367    /* load default subscriptions */
368    ret=owl_zephyr_loaddefaultsubs();
369   
370    /* load subscriptions from subs file */
371    ret2=owl_zephyr_loadsubs(NULL, 0);
372
373    if (ret || ret2) {
374      owl_function_adminmsg("", "Error loading zephyr subscriptions");
375    } else if (ret2!=-1) {
376      owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
377    }
378
379    /* load login subscriptions */
380    if (owl_global_is_loginsubs(&g)) {
381      owl_function_debugmsg("startup: loading login subs");
382      owl_function_loadloginsubs(NULL);
383    }
384  }
385
386  /* First buddy check to sync the list without notifications */
387  owl_function_debugmsg("startup: doing initial zephyr buddy check");
388  /* owl_function_zephyr_buddy_check(0); */
389
390  /* set the startup and default style, based on userclue and presence of a
391   * formatting function */
392  owl_function_debugmsg("startup: setting startup and default style");
393  if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) {
394    /* the style was set by the user: leave it alone */
395  } else if (owl_global_is_config_format(&g)) {
396    owl_global_set_default_style(&g, "perl");
397  } else if (owl_global_is_userclue(&g, OWL_USERCLUE_CLASSES)) {
398    owl_global_set_default_style(&g, "default");
399  } else {
400    owl_global_set_default_style(&g, "basic");
401  }
402
403  /* zlog in if we need to */
404  if (owl_global_is_startuplogin(&g)) {
405    owl_function_debugmsg("startup: doing zlog in");
406    owl_zephyr_zlog_in();
407  }
408
409  owl_function_debugmsg("startup: set style for the view: %s", owl_global_get_default_style(&g));
410  s = owl_global_get_style_by_name(&g, owl_global_get_default_style(&g));
411  if(s)
412      owl_view_set_style(owl_global_get_current_view(&g), s);
413  else
414      owl_function_error("No such style: %s", owl_global_get_default_style(&g));
415
416  owl_function_debugmsg("startup: setting context interactive");
417  owl_context_set_interactive(owl_global_get_context(&g));
418
419  nexttimediff=10;
420  nexttime=time(NULL);
421
422#ifdef HAVE_LIBZEPHYR
423  /* Check for any zephyrs that have come in while we've done init. */
424  owl_zephyr_process_events();
425#endif
426 
427  owl_function_debugmsg("startup: entering main loop");
428  /* main loop */
429  while (1) {
430
431    /* if a resize has been scheduled, deal with it */
432    owl_global_resize(&g, 0, 0);
433
434    /* these are here in case a resize changes the windows */
435    msgwin=owl_global_get_curs_msgwin(&g);
436    recwin=owl_global_get_curs_recwin(&g);
437    sepwin=owl_global_get_curs_sepwin(&g);
438    typwin=owl_global_get_curs_typwin(&g);
439
440    followlast=owl_global_should_followlast(&g);
441   
442    owl_perlconfig_mainloop();
443
444    /* little hack */
445    now=time(NULL);
446    today=localtime(&now);
447    if (today->tm_mon==9 && today->tm_mday==31 && owl_global_get_runtime(&g)<600) {
448      if (time(NULL)>nexttime) {
449        if (nexttimediff==1) {
450          nexttimediff=10;
451        } else {
452          nexttimediff=1;
453        }
454        nexttime+=nexttimediff;
455        owl_hack_animate();
456      }
457    }
458
459    /* Grab incoming messages. */
460    newmsgs=0;
461    while(owl_global_messagequeue_pending(&g)) {
462
463      m = owl_global_messagequeue_popmsg(&g);
464
465      if(owl_process_message(m))
466        newmsgs = 1;
467    }
468
469    /* is it time to check zbuddies? */
470    if (owl_global_is_pseudologins(&g)) {
471      if (owl_timer_is_expired(owl_global_get_zephyr_buddycheck_timer(&g))) {
472        owl_function_debugmsg("Doing zephyr buddy check");
473        owl_function_zephyr_buddy_check(1);
474        owl_timer_reset(owl_global_get_zephyr_buddycheck_timer(&g));
475      }
476    }
477
478    /* dispatch any muxevents */
479    owl_muxevents_dispatch(owl_global_get_muxevents(&g), 0);
480
481    /* follow the last message if we're supposed to */
482    if (newmsgs && followlast) {
483      owl_function_lastmsg_noredisplay();
484    }
485
486    /* do the newmsgproc thing */
487    if (newmsgs) {
488      owl_function_do_newmsgproc();
489    }
490   
491    /* redisplay if necessary */
492    /* this should be optimized to not run if the new messages won't be displayed */
493    if (newmsgs) {
494      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
495      sepbar(NULL);
496      if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
497        owl_popwin_refresh(owl_global_get_popwin(&g));
498        /* TODO: this is a broken kludge */
499        if (owl_global_get_viewwin(&g)) {
500          owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
501        }
502      }
503      owl_global_set_needrefresh(&g);
504    }
505
506    /* if a popwin just came up, refresh it */
507    pw=owl_global_get_popwin(&g);
508    if (owl_popwin_is_active(pw) && owl_popwin_needs_first_refresh(pw)) {
509      owl_popwin_refresh(pw);
510      owl_popwin_no_needs_first_refresh(pw);
511      owl_global_set_needrefresh(&g);
512      /* TODO: this is a broken kludge */
513      if (owl_global_get_viewwin(&g)) {
514        owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
515      }
516    }
517
518    /* update the terminal if we need to */
519    if (owl_global_is_needrefresh(&g)) {
520      /* leave the cursor in the appropriate window */
521      if (owl_global_is_typwin_active(&g)) {
522        owl_function_set_cursor(typwin);
523      } else {
524        owl_function_set_cursor(sepwin);
525      }
526      owl_function_debugmsg("owl.c -- doupdate()");
527      doupdate();
528      owl_global_set_noneedrefresh(&g);
529    }
530
531    /* Handle all keypresses.  If no key has been pressed, sleep for a
532     * little bit, but otherwise do not.  This lets input be grabbed
533     * as quickly as possbile */
534
535    /* select on FDs we know about. */
536    owl_select();
537
538    /* Log any error signals */
539    {
540      siginfo_t si;
541      int signum;
542      if ((signum = owl_global_get_errsignal_and_clear(&g, &si)) > 0) {
543        owl_function_error("Got unexpected signal: %d %s  (code: %d band: %d  errno: %d)", 
544                           signum, signum==SIGPIPE?"SIGPIPE":"SIG????",
545                           si.si_code, si.si_band, si.si_errno);
546      }
547    }
548
549  }
550}
551
552/*
553 * Process a new message passed to us on the message queue from some
554 * protocol. This includes adding it to the message list, updating the
555 * view and scrolling if appropriate, logging it, and so on.
556 *
557 * Either a pointer is kept to the message internally, or it is freed
558 * if unneeded. The caller no longer ``owns'' the message's memory.
559 *
560 * Returns 1 if the message was added to the message list, and 0 if it
561 * was ignored due to user settings or otherwise.
562 */
563int owl_process_message(owl_message *m) {
564  owl_filter *f;
565  /* if this message it on the puntlist, nuke it and continue */
566  if (owl_global_message_is_puntable(&g, m)) {
567    owl_message_free(m);
568    return 0;
569  }
570
571  /*  login or logout that should be ignored? */
572  if (owl_global_is_ignorelogins(&g)
573      && owl_message_is_loginout(m)) {
574    owl_message_free(m);
575    return 0;
576  }
577
578  if (!owl_global_is_displayoutgoing(&g)
579      && owl_message_is_direction_out(m)) {
580    owl_message_free(m);
581    return 0;
582  }
583
584  /* add it to the global list */
585  owl_messagelist_append_element(owl_global_get_msglist(&g), m);
586  /* add it to any necessary views; right now there's only the current view */
587  owl_view_consider_message(owl_global_get_current_view(&g), m);
588
589  if(owl_message_is_direction_in(m)) {
590    /* let perl know about it*/
591    owl_perlconfig_getmsg(m, NULL);
592
593    /* do we need to autoreply? */
594    if (owl_global_is_zaway(&g) && !owl_message_get_attribute_value(m, "isauto")) {
595      if (owl_message_is_type_zephyr(m)) {
596        owl_zephyr_zaway(m);
597      } else if (owl_message_is_type_aim(m)) {
598        if (owl_message_is_private(m)) {
599          owl_function_send_aimawymsg(owl_message_get_sender(m), owl_global_get_zaway_msg(&g));
600        }
601      }
602    }
603
604    /* ring the bell if it's a personal */
605    if (!strcmp(owl_global_get_personalbell(&g), "on")) {
606      if (!owl_message_is_loginout(m) &&
607          !owl_message_is_mail(m) &&
608          owl_message_is_personal(m)) {
609        owl_function_beep();
610      }
611    } else if (!strcmp(owl_global_get_personalbell(&g), "off")) {
612      /* do nothing */
613    } else {
614      f=owl_global_get_filter(&g, owl_global_get_personalbell(&g));
615      if (f && owl_filter_message_match(f, m)) {
616        owl_function_beep();
617      }
618    }
619
620    /* if it matches the alert filter, do the alert action */
621    f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g));
622    if (f && owl_filter_message_match(f, m)) {
623      owl_function_command(owl_global_get_alert_action(&g));
624    }
625
626    /* if it's a zephyr login or logout, update the zbuddylist */
627    if (owl_message_is_type_zephyr(m) && owl_message_is_loginout(m)) {
628      if (owl_message_is_login(m)) {
629        owl_zbuddylist_adduser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
630      } else if (owl_message_is_logout(m)) {
631        owl_zbuddylist_deluser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
632      } else {
633        owl_function_error("Internal error: received login notice that is neither login nor logout");
634      }
635    }
636
637    /* check for burning ears message */
638    /* this is an unsupported feature */
639    if (owl_global_is_burningears(&g) && owl_message_is_burningears(m)) {
640      char *buff;
641      buff = owl_sprintf("@i(Burning ears message on class %s)", owl_message_get_class(m));
642      owl_function_adminmsg(buff, "");
643      owl_free(buff);
644      owl_function_beep();
645    }
646  }
647
648  /* log the message if we need to */
649  owl_log_message(m);
650
651  return 1;
652}
653
654void owl_process_aim()
655{
656  if (owl_global_is_doaimevents(&g)) {
657    owl_aim_process_events();
658   
659    if (owl_global_is_aimloggedin(&g)) {
660      if (owl_timer_is_expired(owl_global_get_aim_buddyinfo_timer(&g))) {
661        /* owl_buddylist_request_idletimes(owl_global_get_buddylist(&g)); */
662        owl_timer_reset(owl_global_get_aim_buddyinfo_timer(&g));
663      }
664    }
665  }
666}
667
668void owl_process_input()
669{
670  int ret, j;
671  owl_popwin *pw;
672  owl_editwin *tw;
673
674  while (1) {
675    j = wgetch(owl_global_get_curs_typwin(&g));
676    if (j == ERR) return;
677
678    owl_global_set_lastinputtime(&g, time(NULL));
679    pw=owl_global_get_popwin(&g);
680    tw=owl_global_get_typwin(&g);
681   
682    /* find and activate the current keymap.
683     * TODO: this should really get fixed by activating
684     * keymaps as we switch between windows...
685     */
686    if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) {
687      owl_context_set_popless(owl_global_get_context(&g), 
688                              owl_global_get_viewwin(&g));
689      owl_function_activate_keymap("popless");
690    } else if (owl_global_is_typwin_active(&g) 
691               && owl_editwin_get_style(tw) == OWL_EDITWIN_STYLE_ONELINE) {
692      /*
693        owl_context_set_editline(owl_global_get_context(&g), tw);
694        owl_function_activate_keymap("editline");
695      */
696    } else if (owl_global_is_typwin_active(&g) 
697               && owl_editwin_get_style(tw) == OWL_EDITWIN_STYLE_MULTILINE) {
698      owl_context_set_editmulti(owl_global_get_context(&g), tw);
699      owl_function_activate_keymap("editmulti");
700    } else {
701      owl_context_set_recv(owl_global_get_context(&g));
702      owl_function_activate_keymap("recv");
703    }
704    /* now actually handle the keypress */
705    ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j);
706    if (ret != 0 && ret != 1) {
707      owl_function_makemsg("Unable to handle keypress");
708    }
709  }
710}
711
712void sig_handler(int sig, siginfo_t *si, void *data)
713{
714  if (sig==SIGWINCH) {
715    /* we can't inturrupt a malloc here, so it just sets a flag
716     * schedulding a resize for later
717     */
718    owl_function_resize();
719  } else if (sig==SIGPIPE || sig==SIGCHLD) {
720    /* Set a flag and some info that we got the sigpipe
721     * so we can record that we got it and why... */
722    owl_global_set_errsignal(&g, sig, si);
723  } else if (sig==SIGTERM || sig==SIGHUP) {
724    owl_function_quit();
725  }
726}
727
728void usage()
729{
730  fprintf(stderr, "Barnowl version %s\n", OWL_VERSION_STRING);
731  fprintf(stderr, "Usage: barnowl [-n] [-d] [-D] [-v] [-h] [-c <configfile>] [-s <confdir>] [-t <ttyname>]\n");
732  fprintf(stderr, "  -n      don't load zephyr subscriptions\n");
733  fprintf(stderr, "  -d      enable debugging\n");
734  fprintf(stderr, "  -D      enable debugging and delete previous debug file\n");
735  fprintf(stderr, "  -v      print the Barnowl version number and exit\n");
736  fprintf(stderr, "  -h      print this help message\n");
737  fprintf(stderr, "  -c      specify an alternate config file\n");
738  fprintf(stderr, "  -s      specify an alternate config dir (default ~/.owl)\n");
739  fprintf(stderr, "  -t      set the tty name\n");
740}
741
742#if OWL_STDERR_REDIR
743
744/* Replaces stderr with a pipe so that we can read from it.
745 * Returns the fd of the pipe from which stderr can be read. */
746int stderr_replace(void)
747{
748  int pipefds[2];
749  if (0 != pipe(pipefds)) {
750    perror("pipe");
751    owl_function_debugmsg("stderr_replace: pipe FAILED\n");
752    return -1;
753  }
754    owl_function_debugmsg("stderr_replace: pipe: %d,%d\n", pipefds[0], pipefds[1]);
755  if (-1 == dup2(pipefds[1], 2 /*stderr*/)) {
756    owl_function_debugmsg("stderr_replace: dup2 FAILED (%s)\n", strerror(errno));
757    perror("dup2");
758    return -1;
759  }
760  return pipefds[0];
761}
762
763/* Sends stderr (read from rfd) messages to the error console */
764void stderr_redirect_handler(int handle, int rfd, int eventmask, void *data) 
765{
766  int navail, bread;
767  char *buf;
768  /*owl_function_debugmsg("stderr_redirect: called with rfd=%d\n", rfd);*/
769  if (rfd<0) return;
770  if (-1 == ioctl(rfd, FIONREAD, (void*)&navail)) {
771    return;
772  }
773  /*owl_function_debugmsg("stderr_redirect: navail = %d\n", navail);*/
774  if (navail<=0) return;
775  if (navail>256) { navail = 256; }
776  buf = owl_malloc(navail+1);
777  bread = read(rfd, buf, navail);
778  if (buf[navail-1] != '\0') {
779    buf[navail] = '\0';
780  }
781  owl_function_error("Err: %s", buf);
782  owl_free(buf);
783}
784
785#endif /* OWL_STDERR_REDIR */
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