source: owl.c @ 8ee712e0

release-1.7release-1.8release-1.9
Last change on this file since 8ee712e0 was 9c678a5, checked in by David Benjamin <davidben@mit.edu>, 11 years ago
Actually set the context interactive in the startup routine This got lost back in 2a17b635c6895121650446d2529f46d7e291a486.
  • Property mode set to 100644
File size: 17.6 KB
Line 
1/*  Copyright (c) 2006-2010 The BarnOwl Developers. All rights reserved.
2 *  Copyright (c) 2004 James Kretchmar. All rights reserved.
3 *
4 *  This program is free software. You can redistribute it and/or
5 *  modify under the terms of the Sleepycat License. See the COPYING
6 *  file included with the distribution for more information.
7 */
8
9#include <stdio.h>
10#include <unistd.h>
11#include <getopt.h>
12#include <stdlib.h>
13#include <string.h>
14#include <signal.h>
15#include <time.h>
16#include <sys/param.h>
17#include <sys/types.h>
18#include <sys/time.h>
19#include <termios.h>
20#include <sys/stat.h>
21#include <locale.h>
22#include "owl.h"
23
24
25#if OWL_STDERR_REDIR
26#ifdef HAVE_SYS_IOCTL_H
27#include <sys/ioctl.h>
28#endif
29#ifdef HAVE_SYS_FILIO_H
30#include <sys/filio.h>
31#endif
32int stderr_replace(void);
33#endif
34
35#define STDIN 0
36
37owl_global g;
38
39typedef struct _owl_options {
40  bool load_initial_subs;
41  char *configfile;
42  char *tty;
43  char *confdir;
44  bool debug;
45  bool rm_debug;
46} owl_options;
47
48void usage(void)
49{
50  fprintf(stderr, "Barnowl version %s\n", OWL_VERSION_STRING);
51  fprintf(stderr, "Usage: barnowl [-n] [-d] [-D] [-v] [-h] [-c <configfile>] [-s <confdir>] [-t <ttyname>]\n");
52  fprintf(stderr, "  -n,--no-subs        don't load zephyr subscriptions\n");
53  fprintf(stderr, "  -d,--debug          enable debugging\n");
54  fprintf(stderr, "  -D,--remove-debug   enable debugging and delete previous debug file\n");
55  fprintf(stderr, "  -v,--version        print the Barnowl version number and exit\n");
56  fprintf(stderr, "  -h,--help           print this help message\n");
57  fprintf(stderr, "  -c,--config-file    specify an alternate config file\n");
58  fprintf(stderr, "  -s,--config-dir     specify an alternate config dir (default ~/.owl)\n");
59  fprintf(stderr, "  -t,--tty            set the tty name\n");
60}
61
62/* TODO: free owl_options after init is done? */
63void owl_parse_options(int argc, char *argv[], owl_options *opts) {
64  static const struct option long_options[] = {
65    { "no-subs",         0, 0, 'n' },
66    { "config-file",     1, 0, 'c' },
67    { "config-dir",      1, 0, 's' },
68    { "tty",             1, 0, 't' },
69    { "debug",           0, 0, 'd' },
70    { "remove-debug",    0, 0, 'D' },
71    { "version",         0, 0, 'v' },
72    { "help",            0, 0, 'h' },
73    { NULL, 0, NULL, 0}
74  };
75  char c;
76
77  while((c = getopt_long(argc, argv, "nc:t:s:dDvh",
78                         long_options, NULL)) != -1) {
79    switch(c) {
80    case 'n':
81      opts->load_initial_subs = 0;
82      break;
83    case 'c':
84      opts->configfile = owl_strdup(optarg);
85      break;
86    case 's':
87      opts->confdir = owl_strdup(optarg);
88      break;
89    case 't':
90      opts->tty = owl_strdup(optarg);
91      break;
92    case 'D':
93      opts->rm_debug = 1;
94      /* fallthrough */
95    case 'd':
96      opts->debug = 1;
97      break;
98    case 'v':
99      printf("This is barnowl version %s\n", OWL_VERSION_STRING);
100      exit(0);
101    case 'h':
102    default:
103      usage();
104      exit(1);
105    }
106  }
107}
108
109void owl_start_color(void) {
110  start_color();
111#ifdef HAVE_USE_DEFAULT_COLORS
112  use_default_colors();
113#endif
114
115  /* define simple color pairs */
116  if (has_colors() && COLOR_PAIRS>=8) {
117    int bg = COLOR_BLACK;
118#ifdef HAVE_USE_DEFAULT_COLORS
119    bg = -1;
120#endif
121    init_pair(OWL_COLOR_BLACK,   COLOR_BLACK,   bg);
122    init_pair(OWL_COLOR_RED,     COLOR_RED,     bg);
123    init_pair(OWL_COLOR_GREEN,   COLOR_GREEN,   bg);
124    init_pair(OWL_COLOR_YELLOW,  COLOR_YELLOW,  bg);
125    init_pair(OWL_COLOR_BLUE,    COLOR_BLUE,    bg);
126    init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, bg);
127    init_pair(OWL_COLOR_CYAN,    COLOR_CYAN,    bg);
128    init_pair(OWL_COLOR_WHITE,   COLOR_WHITE,   bg);
129  }
130}
131
132void owl_start_curses(void) {
133  struct termios tio;
134  /* save initial terminal settings */
135  tcgetattr(0, owl_global_get_startup_tio(&g));
136
137  tcgetattr(0, &tio);
138  tio.c_iflag &= ~(ISTRIP|IEXTEN);
139  tio.c_cc[VQUIT] = fpathconf(STDIN, _PC_VDISABLE);
140  tio.c_cc[VSUSP] = fpathconf(STDIN, _PC_VDISABLE);
141  tcsetattr(0, TCSAFLUSH, &tio);
142
143  /* screen init */
144  initscr();
145  cbreak();
146  noecho();
147
148  owl_start_color();
149}
150
151void owl_shutdown_curses(void) {
152  endwin();
153  /* restore terminal settings */
154  tcsetattr(0, TCSAFLUSH, owl_global_get_startup_tio(&g));
155}
156
157/*
158 * Process a new message passed to us on the message queue from some
159 * protocol. This includes adding it to the message list, updating the
160 * view and scrolling if appropriate, logging it, and so on.
161 *
162 * Either a pointer is kept to the message internally, or it is freed
163 * if unneeded. The caller no longer ``owns'' the message's memory.
164 *
165 * Returns 1 if the message was added to the message list, and 0 if it
166 * was ignored due to user settings or otherwise.
167 */
168int owl_process_message(owl_message *m) {
169  const owl_filter *f;
170  /* if this message it on the puntlist, nuke it and continue */
171  if (owl_global_message_is_puntable(&g, m)) {
172    owl_message_delete(m);
173    return 0;
174  }
175
176  /*  login or logout that should be ignored? */
177  if (owl_global_is_ignorelogins(&g)
178      && owl_message_is_loginout(m)) {
179    owl_message_delete(m);
180    return 0;
181  }
182
183  if (!owl_global_is_displayoutgoing(&g)
184      && owl_message_is_direction_out(m)) {
185    owl_message_delete(m);
186    return 0;
187  }
188
189  /* add it to the global list */
190  owl_messagelist_append_element(owl_global_get_msglist(&g), m);
191  /* add it to any necessary views; right now there's only the current view */
192  owl_view_consider_message(owl_global_get_current_view(&g), m);
193
194  if(owl_message_is_direction_in(m)) {
195    /* let perl know about it*/
196    owl_perlconfig_getmsg(m, NULL);
197
198    /* do we need to autoreply? */
199    if (owl_global_is_zaway(&g) && !owl_message_get_attribute_value(m, "isauto")) {
200      if (owl_message_is_type_zephyr(m)) {
201        owl_zephyr_zaway(m);
202      } else if (owl_message_is_type_aim(m)) {
203        if (owl_message_is_private(m)) {
204          owl_function_send_aimawymsg(owl_message_get_sender(m), owl_global_get_zaway_msg(&g));
205        }
206      }
207    }
208
209    /* ring the bell if it's a personal */
210    if (!strcmp(owl_global_get_personalbell(&g), "on")) {
211      if (!owl_message_is_loginout(m) &&
212          !owl_message_is_mail(m) &&
213          owl_message_is_personal(m)) {
214        owl_function_beep();
215      }
216    } else if (!strcmp(owl_global_get_personalbell(&g), "off")) {
217      /* do nothing */
218    } else {
219      f=owl_global_get_filter(&g, owl_global_get_personalbell(&g));
220      if (f && owl_filter_message_match(f, m)) {
221        owl_function_beep();
222      }
223    }
224
225    /* if it matches the alert filter, do the alert action */
226    f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g));
227    if (f && owl_filter_message_match(f, m)) {
228      owl_function_command(owl_global_get_alert_action(&g));
229    }
230
231    /* if it's a zephyr login or logout, update the zbuddylist */
232    if (owl_message_is_type_zephyr(m) && owl_message_is_loginout(m)) {
233      if (owl_message_is_login(m)) {
234        owl_zbuddylist_adduser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
235      } else if (owl_message_is_logout(m)) {
236        owl_zbuddylist_deluser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
237      } else {
238        owl_function_error("Internal error: received login notice that is neither login nor logout");
239      }
240    }
241  }
242
243  /* let perl know about it */
244  owl_perlconfig_newmsg(m, NULL);
245  /* log the message if we need to */
246  owl_log_message(m);
247  /* redraw the sepbar; TODO: don't violate layering */
248  owl_global_sepbar_dirty(&g);
249
250  return 1;
251}
252
253/*
254 * Process any new messages we have waiting in the message queue.
255 * Returns 1 if any messages were added to the message list, and 0 otherwise.
256 */
257int owl_process_messages(owl_ps_action *d, void *p)
258{
259  int newmsgs=0;
260  int followlast = owl_global_should_followlast(&g);
261  owl_message *m;
262
263  /* Grab incoming messages. */
264  while (owl_global_messagequeue_pending(&g)) {
265    m = owl_global_messagequeue_popmsg(&g);
266    if (owl_process_message(m))
267      newmsgs = 1;
268  }
269
270  if (newmsgs) {
271    /* follow the last message if we're supposed to */
272    if (followlast)
273      owl_function_lastmsg_noredisplay();
274
275    /* do the newmsgproc thing */
276    owl_function_do_newmsgproc();
277
278    /* redisplay if necessary */
279    /* this should be optimized to not run if the new messages won't be displayed */
280    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
281  }
282  return newmsgs;
283}
284
285void owl_process_input(const owl_io_dispatch *d, void *data)
286{
287  owl_input j;
288
289  while (1) {
290    j.ch = wgetch(g.input_pad);
291    if (j.ch == ERR) return;
292
293    j.uch = '\0';
294    if (j.ch >= KEY_MIN && j.ch <= KEY_MAX) {
295      /* This is a curses control character. */
296    }
297    else if (j.ch > 0x7f && j.ch < 0xfe) {
298      /* Pull in a full utf-8 character. */
299      int bytes, i;
300      char utf8buf[7];
301      memset(utf8buf, '\0', 7);
302     
303      utf8buf[0] = j.ch;
304     
305      if ((j.ch & 0xc0) && (~j.ch & 0x20)) bytes = 2;
306      else if ((j.ch & 0xe0) && (~j.ch & 0x10)) bytes = 3;
307      else if ((j.ch & 0xf0) && (~j.ch & 0x08)) bytes = 4;
308      else if ((j.ch & 0xf8) && (~j.ch & 0x04)) bytes = 5;
309      else if ((j.ch & 0xfc) && (~j.ch & 0x02)) bytes = 6;
310      else bytes = 1;
311     
312      for (i = 1; i < bytes; i++) {
313        int tmp = wgetch(g.input_pad);
314        /* If what we got was not a byte, or not a continuation byte */
315        if (tmp > 0xff || !(tmp & 0x80 && ~tmp & 0x40)) {
316          /* ill-formed UTF-8 code unit subsequence, put back the
317             char we just got. */
318          ungetch(tmp);
319          j.ch = ERR;
320          break;
321        }
322        utf8buf[i] = tmp;
323      }
324     
325      if (j.ch != ERR) {
326        if (g_utf8_validate(utf8buf, -1, NULL)) {
327          j.uch = g_utf8_get_char(utf8buf);
328        }
329        else {
330          j.ch = ERR;
331        }
332      }
333    }
334    else if (j.ch <= 0x7f) {
335      j.uch = j.ch;
336    }
337
338    owl_process_input_char(j);
339  }
340}
341
342void sig_handler(int sig, siginfo_t *si, void *data)
343{
344  if (sig==SIGWINCH) {
345    /* we can't inturrupt a malloc here, so it just sets a flag
346     * schedulding a resize for later
347     */
348    owl_function_resize();
349  } else if (sig==SIGPIPE || sig==SIGCHLD) {
350    /* Set a flag and some info that we got the sigpipe
351     * so we can record that we got it and why... */
352    owl_global_set_errsignal(&g, sig, si);
353  } else if (sig==SIGTERM || sig==SIGHUP) {
354    owl_function_quit();
355  }
356}
357
358void sigint_handler(int sig, siginfo_t *si, void *data)
359{
360  owl_global_set_interrupted(&g);
361}
362
363static int owl_errsignal_pre_select_action(owl_ps_action *a, void *data)
364{
365  siginfo_t si;
366  int signum;
367  if ((signum = owl_global_get_errsignal_and_clear(&g, &si)) > 0) {
368    owl_function_error("Got unexpected signal: %d %s  (code: %d band: %ld  errno: %d)",
369        signum, signum==SIGPIPE?"SIGPIPE":"SIG????",
370        si.si_code, si.si_band, si.si_errno);
371  }
372  return 0;
373}
374
375void owl_register_signal_handlers(void) {
376  struct sigaction sigact;
377
378  /* signal handler */
379  /*sigact.sa_handler=sig_handler;*/
380  sigact.sa_sigaction=sig_handler;
381  sigemptyset(&sigact.sa_mask);
382  sigact.sa_flags=SA_SIGINFO;
383  sigaction(SIGWINCH, &sigact, NULL);
384  sigaction(SIGALRM, &sigact, NULL);
385  sigaction(SIGPIPE, &sigact, NULL);
386  sigaction(SIGTERM, &sigact, NULL);
387  sigaction(SIGHUP, &sigact, NULL);
388
389  sigact.sa_sigaction=sigint_handler;
390  sigaction(SIGINT, &sigact, NULL);
391}
392
393#if OWL_STDERR_REDIR
394
395/* Replaces stderr with a pipe so that we can read from it.
396 * Returns the fd of the pipe from which stderr can be read. */
397int stderr_replace(void)
398{
399  int pipefds[2];
400  if (0 != pipe(pipefds)) {
401    perror("pipe");
402    owl_function_debugmsg("stderr_replace: pipe FAILED\n");
403    return -1;
404  }
405    owl_function_debugmsg("stderr_replace: pipe: %d,%d\n", pipefds[0], pipefds[1]);
406  if (-1 == dup2(pipefds[1], 2 /*stderr*/)) {
407    owl_function_debugmsg("stderr_replace: dup2 FAILED (%s)\n", strerror(errno));
408    perror("dup2");
409    return -1;
410  }
411  return pipefds[0];
412}
413
414/* Sends stderr (read from rfd) messages to the error console */
415void stderr_redirect_handler(const owl_io_dispatch *d, void *data)
416{
417  int navail, bread;
418  char buf[4096];
419  int rfd = d->fd;
420  char *err;
421
422  if (rfd<0) return;
423  if (-1 == ioctl(rfd, FIONREAD, &navail)) {
424    return;
425  }
426  /*owl_function_debugmsg("stderr_redirect: navail = %d\n", navail);*/
427  if (navail <= 0) return;
428  if (navail > sizeof(buf)-1) {
429    navail = sizeof(buf)-1;
430  }
431  bread = read(rfd, buf, navail);
432  if (buf[navail-1] != '\0') {
433    buf[navail] = '\0';
434  }
435
436  err = owl_sprintf("[stderr]\n%s", buf);
437
438  owl_function_log_err(err);
439  owl_free(err);
440}
441
442#endif /* OWL_STDERR_REDIR */
443
444static int owl_refresh_pre_select_action(owl_ps_action *a, void *data)
445{
446  /* if a resize has been scheduled, deal with it */
447  owl_global_check_resize(&g);
448  /* update the terminal if we need to */
449  owl_window_redraw_scheduled();
450  return 0;
451}
452
453
454int main(int argc, char **argv, char **env)
455{
456  int argcsave;
457  const char *const *argvsave;
458  char *perlout, *perlerr;
459  const owl_style *s;
460  const char *dir;
461  owl_options opts;
462
463  if (!GLIB_CHECK_VERSION (2, 12, 0))
464    g_error ("GLib version 2.12.0 or above is needed.");
465
466  argcsave=argc;
467  argvsave=strs(argv);
468
469  setlocale(LC_ALL, "");
470
471  memset(&opts, 0, sizeof opts);
472  opts.load_initial_subs = 1;
473  owl_parse_options(argc, argv, &opts);
474  g.load_initial_subs = opts.load_initial_subs;
475
476  owl_register_signal_handlers();
477  owl_start_curses();
478
479  /* owl global init */
480  owl_global_init(&g);
481  if (opts.rm_debug) unlink(OWL_DEBUG_FILE);
482  if (opts.debug) owl_global_set_debug_on(&g);
483  if (opts.confdir) owl_global_set_confdir(&g, opts.confdir);
484  owl_function_debugmsg("startup: first available debugging message");
485  owl_global_set_startupargs(&g, argcsave, argvsave);
486  owl_global_set_haveaim(&g);
487
488  /* register STDIN dispatch; throw away return, we won't need it */
489  owl_select_add_io_dispatch(STDIN, OWL_IO_READ, &owl_process_input, NULL, NULL);
490  owl_zephyr_initialize();
491
492#if OWL_STDERR_REDIR
493  /* Do this only after we've started curses up... */
494  owl_function_debugmsg("startup: doing stderr redirection");
495  owl_select_add_io_dispatch(stderr_replace(), OWL_IO_READ, &stderr_redirect_handler, NULL, NULL);
496#endif
497
498  /* create the owl directory, in case it does not exist */
499  owl_function_debugmsg("startup: creating owl directory, if not present");
500  dir=owl_global_get_confdir(&g);
501  mkdir(dir, S_IRWXU);
502
503  /* set the tty, either from the command line, or by figuring it out */
504  owl_function_debugmsg("startup: setting tty name");
505  if (opts.tty) {
506    owl_global_set_tty(&g, opts.tty);
507  } else {
508    char *tty = owl_util_get_default_tty();
509    owl_global_set_tty(&g, tty);
510    owl_free(tty);
511  }
512
513  /* Initialize perl */
514  owl_function_debugmsg("startup: processing config file");
515
516  owl_global_pop_context(&g);
517  owl_global_push_context(&g, OWL_CTX_READCONFIG, NULL, NULL, NULL);
518
519  perlerr=owl_perlconfig_initperl(opts.configfile, &argc, &argv, &env);
520  if (perlerr) {
521    endwin();
522    fprintf(stderr, "Internal perl error: %s\n", perlerr);
523    fflush(stderr);
524    printf("Internal perl error: %s\n", perlerr);
525    fflush(stdout);
526    exit(1);
527  }
528
529  owl_global_complete_setup(&g);
530
531  owl_global_setup_default_filters(&g);
532
533  /* set the current view */
534  owl_function_debugmsg("startup: setting the current view");
535  owl_view_create(owl_global_get_current_view(&g), "main",
536                  owl_global_get_filter(&g, "all"),
537                  owl_global_get_style_by_name(&g, "default"));
538
539  /* AIM init */
540  owl_function_debugmsg("startup: doing AIM initialization");
541  owl_aim_init();
542
543  /* execute the startup function in the configfile */
544  owl_function_debugmsg("startup: executing perl startup, if applicable");
545  perlout = owl_perlconfig_execute("BarnOwl::Hooks::_startup();");
546  if (perlout) owl_free(perlout);
547
548  /* welcome message */
549  owl_function_debugmsg("startup: creating splash message");
550  owl_function_adminmsg("",
551    "-----------------------------------------------------------------------\n"
552    "Welcome to barnowl version " OWL_VERSION_STRING ".  Press 'h' for on-line help.\n"
553    "To see a quick introduction, type ':show quickstart'.                  \n"
554    "                                                                       \n"
555    "BarnOwl is free software. Type ':show license' for more                \n"
556    "information.                                                     ^ ^   \n"
557    "                                                                 OvO   \n"
558    "Please report any bugs or suggestions to bug-barnowl@mit.edu    (   )  \n"
559    "-----------------------------------------------------------------m-m---\n"
560  );
561
562  /* process the startup file */
563  owl_function_debugmsg("startup: processing startup file");
564  owl_function_source(NULL);
565
566  /* Set the default style */
567  owl_function_debugmsg("startup: setting startup and default style");
568  if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) {
569    /* the style was set by the user: leave it alone */
570  } else {
571    owl_global_set_default_style(&g, "default");
572  }
573
574  owl_function_debugmsg("startup: set style for the view: %s", owl_global_get_default_style(&g));
575  s = owl_global_get_style_by_name(&g, owl_global_get_default_style(&g));
576  if(s)
577      owl_view_set_style(owl_global_get_current_view(&g), s);
578  else
579      owl_function_error("No such style: %s", owl_global_get_default_style(&g));
580
581  owl_function_debugmsg("startup: setting context interactive");
582
583  owl_global_pop_context(&g);
584  owl_global_push_context(&g, OWL_CTX_INTERACTIVE|OWL_CTX_RECV, NULL, "recv", NULL);
585
586  owl_select_add_pre_select_action(owl_refresh_pre_select_action, NULL, NULL);
587  owl_select_add_pre_select_action(owl_process_messages, NULL, NULL);
588  owl_select_add_pre_select_action(owl_errsignal_pre_select_action, NULL, NULL);
589
590  owl_function_debugmsg("startup: entering main loop");
591  owl_select_run_loop();
592
593  /* Shut down everything. */
594  owl_zephyr_shutdown();
595  owl_shutdown_curses();
596  return 0;
597}
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