source: owl.c @ faf71b5

barnowl_perlaimdebianowlrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since faf71b5 was 8c92848, checked in by James M. Kretchmar <kretch@mit.edu>, 18 years ago
More AIM logout detection Don't proclaim "interfaces changed" on first build. Started experimenting with chatoom stuff
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File size: 19.0 KB
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1/*
2 * Copyright 2001 Massachusetts Institute of Technology
3 *
4 * Permission to use, copy, modify, and distribute this software and
5 * its documentation for any purpose and without fee is hereby
6 * granted, provided that the above copyright notice and this
7 * permission notice appear in all copies and in supporting
8 * documentation.  No representation is made about the suitability of
9 * this software for any purpose.  It is provided "as is" without
10 * express or implied warranty.
11 */
12
13#include <stdio.h>
14#include <unistd.h>
15#include <stdlib.h>
16#include <string.h>
17#include <signal.h>
18#include <time.h>
19#include <sys/param.h>
20#include <sys/types.h>
21#include <sys/stat.h>
22#include "owl.h"
23
24#if OWL_STDERR_REDIR
25#ifdef HAVE_SYS_IOCTL_H
26#include <sys/ioctl.h>
27#endif
28#ifdef HAVE_SYS_FILIO_H
29#include <sys/filio.h>
30#endif
31int stderr_replace(void);
32void stderr_redirect(int rfd);
33#endif
34
35static const char fileIdent[] = "$Id$";
36
37owl_global g;
38
39int main(int argc, char **argv, char **env) {
40  WINDOW *recwin, *sepwin, *typwin, *msgwin;
41  owl_editwin *tw;
42  owl_popwin *pw;
43  int j, ret, initialsubs, debug, argcsave, followlast;
44  int newmsgs, zpendcount, nexttimediff;
45  struct sigaction sigact;
46  char *configfile, *tty, *perlout, *perlerr, **argvsave, buff[LINE], startupmsg[LINE];
47  owl_filter *f;
48  owl_style *s;
49  time_t nexttime, now;
50  struct tm *today;
51  char *dir;
52#ifdef HAVE_LIBZEPHYR
53  ZNotice_t notice;
54#endif
55#if OWL_STDERR_REDIR
56  int newstderr;
57#endif
58
59  argcsave=argc;
60  argvsave=argv;
61  configfile=NULL;
62  tty=NULL;
63  debug=0;
64  initialsubs=1;
65  if (argc>0) {
66    argv++;
67    argc--;
68  }
69  while (argc>0) {
70    if (!strcmp(argv[0], "-n")) {
71      initialsubs=0;
72      argv++;
73      argc--;
74    } else if (!strcmp(argv[0], "-c")) {
75      if (argc<2) {
76        fprintf(stderr, "Too few arguments to -c\n");
77        usage();
78        exit(1);
79      }
80      configfile=argv[1];
81      argv+=2;
82      argc-=2;
83    } else if (!strcmp(argv[0], "-t")) {
84      if (argc<2) {
85        fprintf(stderr, "Too few arguments to -t\n");
86        usage();
87        exit(1);
88      }
89      tty=argv[1];
90      argv+=2;
91      argc-=2;
92    } else if (!strcmp(argv[0], "-d")) {
93      debug=1;
94      argv++;
95      argc--;
96    } else if (!strcmp(argv[0], "-v")) {
97      printf("This is owl version %s\n", OWL_VERSION_STRING);
98      exit(0);
99    } else {
100      fprintf(stderr, "Uknown argument\n");
101      usage();       
102      exit(1);
103    }
104  }
105
106#ifdef HAVE_LIBZEPHYR
107  /* zephyr init */
108  ret=owl_zephyr_initialize();
109  if (ret) {
110    exit(1);
111  }
112#endif
113 
114  /* signal handler */
115  sigact.sa_handler=sig_handler;
116  sigemptyset(&sigact.sa_mask);
117  sigact.sa_flags=0;
118  sigaction(SIGWINCH, &sigact, NULL);
119  sigaction(SIGALRM, &sigact, NULL);
120
121  /* screen init */
122  sprintf(buff, "TERMINFO=%s", TERMINFO);
123  putenv(buff);
124  initscr();
125  start_color();
126#ifdef HAVE_USE_DEFAULT_COLORS
127  use_default_colors();
128#endif
129  raw();
130  noecho();
131
132  /* define simple color pairs */
133  if (has_colors() && COLOR_PAIRS>=8) {
134    init_pair(OWL_COLOR_BLACK,   COLOR_BLACK,   -1);
135    init_pair(OWL_COLOR_RED,     COLOR_RED,     -1);
136    init_pair(OWL_COLOR_GREEN,   COLOR_GREEN,   -1);
137    init_pair(OWL_COLOR_YELLOW,  COLOR_YELLOW,  -1);
138    init_pair(OWL_COLOR_BLUE,    COLOR_BLUE,    -1);
139    init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, -1);
140    init_pair(OWL_COLOR_CYAN,    COLOR_CYAN,    -1);
141    init_pair(OWL_COLOR_WHITE,   COLOR_WHITE,   -1);
142  }
143
144  /* owl global init */
145  owl_global_init(&g);
146  if (debug) owl_global_set_debug_on(&g);
147  owl_global_set_startupargs(&g, argcsave, argvsave);
148#ifdef HAVE_LIBZEPHYR
149  owl_global_set_havezephyr(&g);
150#endif
151  owl_global_set_haveaim(&g);
152
153#if OWL_STDERR_REDIR
154  /* Do this only after we've started curses up... */ 
155  newstderr = stderr_replace();
156#endif   
157
158  /* create the owl directory, in case it does not exist */
159  dir=owl_sprintf("%s/%s", owl_global_get_homedir(&g), OWL_CONFIG_DIR);
160  mkdir(dir, S_IRWXU);
161  owl_free(dir);
162
163  /* set the tty, either from the command line, or by figuring it out */
164  if (tty) {
165    owl_global_set_tty(&g, tty);
166  } else {
167    owl_global_set_tty(&g, owl_util_get_default_tty());
168  }
169
170  /* setup the built-in styles */
171  s=owl_malloc(sizeof(owl_style));
172  owl_style_create_internal(s, "default", &owl_stylefunc_default,
173                            "Default message formatting");
174  owl_global_add_style(&g, s);
175
176  s=owl_malloc(sizeof(owl_style));
177  owl_style_create_internal(s, "basic", &owl_stylefunc_basic,
178                            "Basic message formatting.");
179  owl_global_add_style(&g, s);
180#if 0
181  s=owl_malloc(sizeof(owl_style));
182  owl_style_create_internal(s, "vt", &owl_stylefunc_vt,
183                            "VT message formatting.");
184  owl_global_add_style(&g, s);
185#endif
186  s=owl_malloc(sizeof(owl_style));
187  owl_style_create_internal(s, "oneline", &owl_stylefunc_oneline,
188                            "Formats for one-line-per-message");
189  owl_global_add_style(&g, s);
190
191  /* setup the default filters */
192  /* the personal filter will need to change again when AIM chat's are
193   *  included.  Also, there should be an %aimme% */
194  f=owl_malloc(sizeof(owl_filter));
195  owl_filter_init_fromstring(f, "personal", "( type ^zephyr$ "
196                             "and class ^message$ and instance ^personal$ "
197                             "and ( recipient ^%me%$ or sender ^%me%$ ) ) "
198                             "or ( type ^aim$ and login ^none$ )");
199  owl_list_append_element(owl_global_get_filterlist(&g), f);
200
201  f=owl_malloc(sizeof(owl_filter));
202  owl_filter_init_fromstring(f, "trash", "class ^mail$ or opcode ^ping$ or type ^admin$ or ( not login ^none$ )");
203  owl_list_append_element(owl_global_get_filterlist(&g), f);
204
205  f=owl_malloc(sizeof(owl_filter));
206  owl_filter_init_fromstring(f, "ping", "opcode ^ping$");
207  owl_list_append_element(owl_global_get_filterlist(&g), f);
208
209  f=owl_malloc(sizeof(owl_filter));
210  owl_filter_init_fromstring(f, "auto", "opcode ^auto$");
211  owl_list_append_element(owl_global_get_filterlist(&g), f);
212
213  f=owl_malloc(sizeof(owl_filter));
214  owl_filter_init_fromstring(f, "login", "not login ^none$");
215  owl_list_append_element(owl_global_get_filterlist(&g), f);
216
217  f=owl_malloc(sizeof(owl_filter));
218  owl_filter_init_fromstring(f, "reply-lockout", "class ^noc or class ^mail$");
219  owl_list_append_element(owl_global_get_filterlist(&g), f);
220
221  f=owl_malloc(sizeof(owl_filter));
222  owl_filter_init_fromstring(f, "out", "direction ^out$");
223  owl_list_append_element(owl_global_get_filterlist(&g), f);
224
225  f=owl_malloc(sizeof(owl_filter));
226  owl_filter_init_fromstring(f, "aim", "type ^aim$");
227  owl_list_append_element(owl_global_get_filterlist(&g), f);
228
229  f=owl_malloc(sizeof(owl_filter));
230  owl_filter_init_fromstring(f, "zephyr", "type ^zephyr$");
231  owl_list_append_element(owl_global_get_filterlist(&g), f);
232
233  f=owl_malloc(sizeof(owl_filter));
234  owl_filter_init_fromstring(f, "none", "false");
235  owl_list_append_element(owl_global_get_filterlist(&g), f);
236
237  f=owl_malloc(sizeof(owl_filter));
238  owl_filter_init_fromstring(f, "all", "true");
239  owl_list_append_element(owl_global_get_filterlist(&g), f);
240
241  /* set the current view */
242  owl_view_create(owl_global_get_current_view(&g), "main", f, owl_global_get_style_by_name(&g, "default"));
243
244  /* AIM init */
245  owl_aim_init();
246
247  /* process the startup file */
248  owl_function_source(NULL);
249
250  /* read the config file */
251  owl_context_set_readconfig(owl_global_get_context(&g));
252  perlerr=owl_perlconfig_readconfig(configfile);
253  if (perlerr) {
254    endwin();
255    fprintf(stderr, "\nError parsing configfile: %s\n", perlerr);
256    exit(1);
257  }
258
259  /* if the config defines a formatting function, add 'perl' as a style */
260  if (owl_global_is_config_format(&g)) {
261    owl_function_debugmsg("Found perl formatting");
262    s=owl_malloc(sizeof(owl_style));
263    owl_style_create_perl(s, "perl", "owl::_format_msg_legacy_wrap",
264                          "User-defined perl style that calls owl::format_msg"
265                          "with legacy global variable support");
266    owl_global_add_style(&g, s);
267    owl_global_set_default_style(&g, "perl");
268  }
269
270  /* execute the startup function in the configfile */
271  perlout = owl_perlconfig_execute("owl::startup();");
272  if (perlout) owl_free(perlout);
273  owl_function_debugmsg("-- Owl Startup --");
274 
275  /* hold on to the window names for convenience */
276  msgwin=owl_global_get_curs_msgwin(&g);
277  recwin=owl_global_get_curs_recwin(&g);
278  sepwin=owl_global_get_curs_sepwin(&g);
279  typwin=owl_global_get_curs_typwin(&g);
280  tw=owl_global_get_typwin(&g);
281
282  wrefresh(sepwin);
283
284  /* load zephyr subs */
285  if (initialsubs) {
286    /* load normal subscriptions */
287    ret=owl_zephyr_loadsubs(NULL);
288    if (ret!=-1) {
289      owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
290    }
291
292    /* load login subscriptions */
293    if (owl_global_is_loginsubs(&g)) {
294      owl_function_loadloginsubs(NULL);
295    }
296  }
297
298  /* set the startup and default style, based on userclue and presence of a
299   * formatting function */
300  if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) {
301    /* the style was set by the user: leave it alone */
302  } else if (owl_global_is_config_format(&g)) {
303    owl_global_set_default_style(&g, "perl");
304  } else if (owl_global_is_userclue(&g, OWL_USERCLUE_CLASSES)) {
305    owl_global_set_default_style(&g, "default");
306  } else {
307    owl_global_set_default_style(&g, "basic");
308  }
309
310  /* zlog in if we need to */
311  if (owl_global_is_startuplogin(&g)) {
312    owl_zephyr_zlog_in();
313  }
314
315  owl_view_set_style(owl_global_get_current_view(&g), 
316                     owl_global_get_style_by_name(&g, owl_global_get_default_style(&g)));   
317
318  /* welcome message */
319  strcpy(startupmsg, "-------------------------------------------------------------------------\n");
320  sprintf(buff,      "Welcome to Owl version %s.  Press 'h' for on-line help. \n", OWL_VERSION_STRING);
321  strcat(startupmsg, buff);
322  strcat(startupmsg, "                                                                         \n");
323  strcat(startupmsg, "If you would like to receive release announcements about owl you can join \n");
324  strcat(startupmsg, "the owl-users@mit.edu mailing list.  MIT users can add themselves,       \n");
325  strcat(startupmsg, "otherwise send a request to owner-owl-users@mit.edu.               ^ ^   \n");
326  strcat(startupmsg, "                                                                   OvO   \n");
327  strcat(startupmsg, "Please report any bugs or suggestions to bug-owl@mit.edu          (   )  \n");
328  strcat(startupmsg, "-------------------------------------------------------------------m-m---\n");
329  owl_function_adminmsg("", startupmsg);
330  sepbar(NULL);
331 
332  owl_context_set_interactive(owl_global_get_context(&g));
333
334  nexttimediff=10;
335  nexttime=time(NULL);
336
337  /* main loop */
338  while (1) {
339
340    /* if a resize has been scheduled, deal with it */
341    owl_global_resize(&g, 0, 0);
342
343    /* these are here in case a resize changes the windows */
344    msgwin=owl_global_get_curs_msgwin(&g);
345    recwin=owl_global_get_curs_recwin(&g);
346    sepwin=owl_global_get_curs_sepwin(&g);
347    typwin=owl_global_get_curs_typwin(&g);
348
349    followlast=owl_global_should_followlast(&g);
350   
351    /* Do AIM stuff */
352    if (owl_global_is_doaimevents(&g)) {
353      owl_aim_process_events();
354
355      if (owl_global_is_aimloggedin(&g)) {
356        if (owl_timer_is_expired(owl_global_get_aim_buddyinfo_timer(&g))) {
357          /* owl_buddylist_request_idletimes(owl_global_get_buddylist(&g)); */
358          owl_timer_reset(owl_global_get_aim_buddyinfo_timer(&g));
359        }
360      }
361    }
362
363    /* little hack */
364    now=time(NULL);
365    today=localtime(&now);
366    if (today->tm_mon==9 && today->tm_mday==31 && owl_global_get_runtime(&g)<600) {
367      if (time(NULL)>nexttime) {
368        if (nexttimediff==1) {
369          nexttimediff=10;
370        } else {
371          nexttimediff=1;
372        }
373        nexttime+=nexttimediff;
374        owl_hack_animate();
375      }
376    }
377
378    /* Grab incoming messages. */
379    newmsgs=0;
380    zpendcount=0;
381    while(owl_zephyr_zpending() || owl_global_messagequeue_pending(&g)) {
382#ifdef HAVE_LIBZEPHYR
383      struct sockaddr_in from;
384#endif
385      owl_message *m=NULL;
386      owl_filter *f;
387
388      /* grab the new message, stick it in 'm' */
389      if (owl_zephyr_zpending()) {
390#ifdef HAVE_LIBZEPHYR
391        /* grab a zephyr notice, but if we've done 20 without stopping,
392           take a break to process keystrokes etc. */
393        if (zpendcount>20) break;
394        ZReceiveNotice(&notice, &from);
395        zpendcount++;
396       
397        /* is this an ack from a zephyr we sent? */
398        if (owl_zephyr_notice_is_ack(&notice)) {
399          owl_zephyr_handle_ack(&notice);
400          continue;
401        }
402       
403        /* if it's a ping and we're not viewing pings then skip it */
404        if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
405          continue;
406        }
407
408        /* create the new message */
409        m=owl_malloc(sizeof(owl_message));
410        owl_message_create_from_znotice(m, &notice);
411#endif
412      } else if (owl_global_messagequeue_pending(&g)) {
413        m=owl_global_messageuque_popmsg(&g);
414      }
415     
416      /* if this message it on the puntlist, nuke it and continue */
417      if (owl_global_message_is_puntable(&g, m)) {
418        owl_message_free(m);
419        continue;
420      }
421
422      /* otherwise add it to the global list */
423      owl_messagelist_append_element(owl_global_get_msglist(&g), m);
424      newmsgs=1;
425
426      /* let the config know the new message has been received */
427      owl_perlconfig_getmsg(m, 0, NULL);
428
429      /* add it to any necessary views; right now there's only the current view */
430      owl_view_consider_message(owl_global_get_current_view(&g), m);
431
432      /* do we need to autoreply? */
433      if (owl_global_is_zaway(&g)) {
434        if (owl_message_is_type_zephyr(m)) {
435          owl_zephyr_zaway(m);
436        } else if (owl_message_is_type_aim(m)) {
437          /* can't do this, there's no mechanism not to start a loop */
438          /* owl_aim_send_im(owl_message_get_sender(m), owl_global_get_zaway_msg(&g)); */
439        }
440      }
441
442      /* ring the bell if it's a personal */
443      if (owl_global_is_personalbell(&g) &&
444          !owl_message_is_loginout(m) &&
445          !owl_message_is_mail(m) &&
446          owl_message_is_private(m)) {
447        owl_function_beep();
448      }
449
450      /* if it matches the alert filter, do the alert action */
451      f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g));
452      if (f && owl_filter_message_match(f, m)) {
453        owl_function_command(owl_global_get_alert_action(&g));
454      }
455
456      /* check for burning ears message */
457      /* this is an unsupported feature */
458      if (owl_global_is_burningears(&g) && owl_message_is_burningears(m)) {
459        char *buff;
460        buff = owl_sprintf("@i(Burning ears message on class %s)", owl_message_get_class(m));
461        owl_function_adminmsg(buff, "");
462        owl_free(buff);
463        owl_function_beep();
464      }
465
466      /* log the message if we need to */
467      if (owl_global_is_logging(&g) || owl_global_is_classlogging(&g)) {
468        owl_log_incoming(m);
469      }
470    }
471
472    /* follow the last message if we're supposed to */
473    if (newmsgs && followlast) {
474      owl_function_lastmsg_noredisplay();
475    }
476
477    /* do the newmsgproc thing */
478    if (newmsgs) {
479      owl_function_do_newmsgproc();
480    }
481   
482    /* redisplay if necessary */
483    /* this should be optimized to not run if the new messages won't be displayed */
484    if (newmsgs) {
485      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
486      sepbar(NULL);
487      if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
488        owl_popwin_refresh(owl_global_get_popwin(&g));
489        /* TODO: this is a broken kludge */
490        if (owl_global_get_viewwin(&g)) {
491          owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
492        }
493      }
494      owl_global_set_needrefresh(&g);
495    }
496
497    /* if a popwin just came up, refresh it */
498    pw=owl_global_get_popwin(&g);
499    if (owl_popwin_is_active(pw) && owl_popwin_needs_first_refresh(pw)) {
500      owl_popwin_refresh(pw);
501      owl_popwin_no_needs_first_refresh(pw);
502      owl_global_set_needrefresh(&g);
503      /* TODO: this is a broken kludge */
504      if (owl_global_get_viewwin(&g)) {
505        owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
506      }
507    }
508
509    /* update the terminal if we need to */
510    if (owl_global_is_needrefresh(&g)) {
511      /* leave the cursor in the appropriate window */
512      if (owl_global_is_typwin_active(&g)) {
513        owl_function_set_cursor(typwin);
514      } else {
515        owl_function_set_cursor(sepwin);
516      }
517      doupdate();
518      owl_global_set_noneedrefresh(&g);
519    }
520
521    /* Handle all keypresses.  If no key has been pressed, sleep for a
522     * little bit, but otherwise do not.  This lets input be grabbed
523     * as quickly as possbile */
524    j=wgetch(typwin);
525    if (j==ERR) {
526      usleep(10);
527      continue;
528    }
529    /* find and activate the current keymap.
530     * TODO: this should really get fixed by activating
531     * keymaps as we switch between windows...
532     */
533    if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) {
534      owl_context_set_popless(owl_global_get_context(&g), 
535                              owl_global_get_viewwin(&g));
536      owl_function_activate_keymap("popless");
537    } else if (owl_global_is_typwin_active(&g) 
538               && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_ONELINE) {
539      /*
540      owl_context_set_editline(owl_global_get_context(&g), tw);
541      owl_function_activate_keymap("editline");
542      */
543    } else if (owl_global_is_typwin_active(&g) 
544               && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_MULTILINE) {
545      owl_context_set_editmulti(owl_global_get_context(&g), tw);
546      owl_function_activate_keymap("editmulti");
547    } else {
548      owl_context_set_recv(owl_global_get_context(&g));
549      owl_function_activate_keymap("recv");
550    }
551    /* now actually handle the keypress */
552    ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j);
553    if (ret!=0 && ret!=1) {
554      owl_function_makemsg("Unable to handle keypress");
555    }
556
557#if OWL_STDERR_REDIR
558    stderr_redirect(newstderr);
559#endif   
560
561  }
562}
563
564void sig_handler(int sig) {
565  if (sig==SIGWINCH) {
566    /* we can't inturrupt a malloc here, so it just sets a flag
567     * schedulding a resize for later
568     */
569    owl_function_resize();
570  }
571}
572
573void usage() {
574  fprintf(stderr, "Owl version %s\n", OWL_VERSION_STRING);
575  fprintf(stderr, "Usage: owl [-n] [-d] [-v] [-h] [-c <configfile>] [-t <ttyname>]\n");
576  fprintf(stderr, "  -n      don't load zephyr subscriptions\n");
577  fprintf(stderr, "  -d      enable debugging\n");
578  fprintf(stderr, "  -v      print the Owl version number and exit\n");
579  fprintf(stderr, "  -h      print this help message\n");
580  fprintf(stderr, "  -c      specify an alternate config file\n");
581  fprintf(stderr, "  -t      set the tty name\n");
582}
583
584
585
586#if OWL_STDERR_REDIR
587
588/* Replaces stderr with a pipe so that we can read from it.
589 * Returns the fd of the pipe from which stderr can be read. */
590int stderr_replace(void) {
591  int pipefds[2];
592  if (0 != pipe(pipefds)) {
593    perror("pipe");
594    owl_function_debugmsg("stderr_replace: pipe FAILED\n");
595    return -1;
596  }
597    owl_function_debugmsg("stderr_replace: pipe: %d,%d\n", pipefds[0], pipefds[1]);
598  if (-1 == dup2(pipefds[1], 2 /*stderr*/)) {
599    owl_function_debugmsg("stderr_replace: dup2 FAILED (%s)\n", strerror(errno));
600    perror("dup2");
601    return -1;
602  }
603  return pipefds[0];
604}
605
606/* Sends stderr (read from rfd) messages to a file */
607void stderr_redirect(int rfd) {
608  int navail, bread;
609  char *buf;
610  /*owl_function_debugmsg("stderr_redirect: called with rfd=%d\n", rfd);*/
611  if (rfd<0) return;
612  if (-1 == ioctl(rfd, FIONREAD, (void*)&navail)) {
613    return;
614  }
615  /*owl_function_debugmsg("stderr_redirect: navail = %d\n", navail);*/
616  if (navail<=0) return;
617  if (navail>256) { navail = 256; }
618  buf = owl_malloc(navail+1);
619  bread = read(rfd, buf, navail);
620  if (buf[navail-1] != '\0') {
621    buf[navail] = '\0';
622  }
623  owl_function_error("Err: %s", buf);
624  owl_free(buf);
625}
626
627#endif /* OWL_STDERR_REDIR */
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