source: zephyr.c @ 460413f

release-1.10release-1.9
Last change on this file since 460413f was f271129, checked in by Jason Gross <jgross@mit.edu>, 13 years ago
Fix up headers The additions to owl.h and some of the removals were done by Alejandro Sedeño <asedeno@mit.edu> in commit 77a0258b3919468fc9d7f7602588ac427ab36e6c. Notes: * I think owl.c lost the need for sys/time.h when we punted select() in favor of glib's main loop. * We don't actually need to include things like stdarg.h, stdio.h, glib/gstdio.h, glib-object.h. I think they get indirectly included via owl.h and/or glib.h. They're left in (or added in to) the files that use functions/types from them. * I'm not entirely sure what sys/socket.h is doing in message.c. It is there from the initial commit. I suspect it might have had something to do with the call to getnameinfo. message.c compiles without it, but http://pubs.opengroup.org/onlinepubs/009695399/functions/getnameinfo.html suggests that we're supposed to include it? *shrugs* I'm leaving it in, for now. (Rather, I'll leave one copy of the #include in.)
  • Property mode set to 100644
File size: 39.5 KB
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1#include "owl.h"
2#include <stdio.h>
3#include <sys/stat.h>
4
5#ifdef HAVE_LIBZEPHYR
6static GSource *owl_zephyr_event_source_new(int fd);
7
8static gboolean owl_zephyr_event_prepare(GSource *source, int *timeout);
9static gboolean owl_zephyr_event_check(GSource *source);
10static gboolean owl_zephyr_event_dispatch(GSource *source, GSourceFunc callback, gpointer user_data);
11
12static GList *deferred_subs = NULL;
13
14typedef struct _owl_sub_list {                            /* noproto */
15  ZSubscription_t *subs;
16  int nsubs;
17} owl_sub_list;
18
19Code_t ZResetAuthentication(void);
20
21static GSourceFuncs zephyr_event_funcs = {
22  owl_zephyr_event_prepare,
23  owl_zephyr_event_check,
24  owl_zephyr_event_dispatch,
25  NULL
26};
27#endif
28
29#define HM_SVC_FALLBACK         htons((unsigned short) 2104)
30
31static char *owl_zephyr_dotfile(const char *name, const char *input)
32{
33  if (input != NULL)
34    return g_strdup(input);
35  else
36    return g_build_filename(owl_global_get_homedir(&g), name, NULL);
37}
38
39#ifdef HAVE_LIBZEPHYR
40void owl_zephyr_initialize(void)
41{
42  Code_t ret;
43  struct servent *sp;
44  struct sockaddr_in sin;
45  ZNotice_t req;
46  GIOChannel *channel;
47
48  /*
49   * Code modified from libzephyr's ZhmStat.c
50   *
51   * Modified to add the fd to our select loop, rather than hanging
52   * until we get an ack.
53   */
54
55  if ((ret = ZOpenPort(NULL)) != ZERR_NONE) {
56    owl_function_error("Error opening Zephyr port: %s", error_message(ret));
57    return;
58  }
59
60  (void) memset(&sin, 0, sizeof(struct sockaddr_in));
61
62  sp = getservbyname(HM_SVCNAME, "udp");
63
64  sin.sin_port = (sp) ? sp->s_port : HM_SVC_FALLBACK;
65  sin.sin_family = AF_INET;
66
67  sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
68
69  (void) memset(&req, 0, sizeof(req));
70  req.z_kind = STAT;
71  req.z_port = 0;
72  req.z_class = zstr(HM_STAT_CLASS);
73  req.z_class_inst = zstr(HM_STAT_CLIENT);
74  req.z_opcode = zstr(HM_GIMMESTATS);
75  req.z_sender = zstr("");
76  req.z_recipient = zstr("");
77  req.z_default_format = zstr("");
78  req.z_message_len = 0;
79
80  if ((ret = ZSetDestAddr(&sin)) != ZERR_NONE) {
81    owl_function_error("Initializing Zephyr: %s", error_message(ret));
82    return;
83  }
84
85  if ((ret = ZSendNotice(&req, ZNOAUTH)) != ZERR_NONE) {
86    owl_function_error("Initializing Zephyr: %s", error_message(ret));
87    return;
88  }
89
90  channel = g_io_channel_unix_new(ZGetFD());
91  g_io_add_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP,
92                 &owl_zephyr_finish_initialization, NULL);
93  g_io_channel_unref(channel);
94}
95
96gboolean owl_zephyr_finish_initialization(GIOChannel *source, GIOCondition condition, void *data) {
97  Code_t code;
98  char *perl;
99  GSource *event_source;
100
101  ZClosePort();
102
103  if ((code = ZInitialize()) != ZERR_NONE) {
104    owl_function_error("Initializing Zephyr: %s", error_message(code));
105    return FALSE;
106  }
107
108  if ((code = ZOpenPort(NULL)) != ZERR_NONE) {
109    owl_function_error("Initializing Zephyr: %s", error_message(code));
110    return FALSE;
111  }
112
113  event_source = owl_zephyr_event_source_new(ZGetFD());
114  g_source_attach(event_source, NULL);
115  g_source_unref(event_source);
116
117  owl_global_set_havezephyr(&g);
118
119  if(g.load_initial_subs) {
120    owl_zephyr_load_initial_subs();
121  }
122  while(deferred_subs != NULL) {
123    owl_sub_list *subs = deferred_subs->data;
124    owl_function_debugmsg("Loading %d deferred subs.", subs->nsubs);
125    owl_zephyr_loadsubs_helper(subs->subs, subs->nsubs);
126    deferred_subs = g_list_delete_link(deferred_subs, deferred_subs);
127    g_free(subs);
128  }
129
130  /* zlog in if we need to */
131  if (owl_global_is_startuplogin(&g)) {
132    owl_function_debugmsg("startup: doing zlog in");
133    owl_zephyr_zlog_in();
134  }
135  /* check pseudo-logins if we need to */
136  if (owl_global_is_pseudologins(&g)) {
137    owl_function_debugmsg("startup: checking pseudo-logins");
138    owl_function_zephyr_buddy_check(0);
139  }
140
141  perl = owl_perlconfig_execute("BarnOwl::Zephyr::_zephyr_startup()");
142  g_free(perl);
143  return FALSE;
144}
145
146void owl_zephyr_load_initial_subs(void) {
147  int ret_sd, ret_bd, ret_u;
148
149  owl_function_debugmsg("startup: loading initial zephyr subs");
150
151  /* load default subscriptions */
152  ret_sd = owl_zephyr_loaddefaultsubs();
153
154  /* load Barnowl default subscriptions */
155  ret_bd = owl_zephyr_loadbarnowldefaultsubs();
156
157  /* load subscriptions from subs file */
158  ret_u = owl_zephyr_loadsubs(NULL, 0);
159
160  if (ret_sd || ret_bd || ret_u) {
161    owl_function_error("Error loading zephyr subscriptions");
162  }
163
164  /* load login subscriptions */
165  if (owl_global_is_loginsubs(&g)) {
166    owl_function_debugmsg("startup: loading login subs");
167    owl_function_loadloginsubs(NULL);
168  }
169}
170#else
171void owl_zephyr_initialize(void)
172{
173}
174#endif
175
176
177int owl_zephyr_shutdown(void)
178{
179#ifdef HAVE_LIBZEPHYR
180  if(owl_global_is_havezephyr(&g)) {
181    unsuball();
182    ZClosePort();
183  }
184#endif
185  return 0;
186}
187
188int owl_zephyr_zpending(void)
189{
190#ifdef HAVE_LIBZEPHYR
191  Code_t code;
192  if(owl_global_is_havezephyr(&g)) {
193    if((code = ZPending()) < 0) {
194      owl_function_debugmsg("Error (%s) in ZPending()\n",
195                            error_message(code));
196      return 0;
197    }
198    return code;
199  }
200#endif
201  return 0;
202}
203
204int owl_zephyr_zqlength(void)
205{
206#ifdef HAVE_LIBZEPHYR
207  Code_t code;
208  if(owl_global_is_havezephyr(&g)) {
209    if((code = ZQLength()) < 0) {
210      owl_function_debugmsg("Error (%s) in ZQLength()\n",
211                            error_message(code));
212      return 0;
213    }
214    return code;
215  }
216#endif
217  return 0;
218}
219
220const char *owl_zephyr_get_realm(void)
221{
222#ifdef HAVE_LIBZEPHYR
223  if (owl_global_is_havezephyr(&g))
224    return(ZGetRealm());
225#endif
226  return "";
227}
228
229const char *owl_zephyr_get_sender(void)
230{
231#ifdef HAVE_LIBZEPHYR
232  if (owl_global_is_havezephyr(&g))
233    return(ZGetSender());
234#endif
235  return "";
236}
237
238#ifdef HAVE_LIBZEPHYR
239int owl_zephyr_loadsubs_helper(ZSubscription_t subs[], int count)
240{
241  int ret = 0;
242  Code_t code;
243
244  if (owl_global_is_havezephyr(&g)) {
245    int i;
246    /* sub without defaults */
247    code = ZSubscribeToSansDefaults(subs, count, 0);
248    if (code != ZERR_NONE) {
249      owl_function_error("Error subscribing to zephyr notifications: %s",
250                         error_message(code));
251      ret=-2;
252    }
253
254    /* free stuff */
255    for (i=0; i<count; i++) {
256      g_free(subs[i].zsub_class);
257      g_free(subs[i].zsub_classinst);
258      g_free(subs[i].zsub_recipient);
259    }
260
261    g_free(subs);
262  } else {
263    owl_sub_list *s = g_new(owl_sub_list, 1);
264    s->subs = subs;
265    s->nsubs = count;
266    deferred_subs = g_list_append(deferred_subs, s);
267  }
268
269  return ret;
270}
271#endif
272
273/* Load zephyr subscriptions from 'filename'.  If 'filename' is NULL,
274 * the default file $HOME/.zephyr.subs will be used.
275 *
276 * Returns 0 on success.  If the file does not exist, return -1 if
277 * 'error_on_nofile' is 1, otherwise return 0.  Return -1 if the file
278 * exists but can not be read.  Return -2 if there is a failure from
279 * zephyr to load the subscriptions.
280 */
281int owl_zephyr_loadsubs(const char *filename, int error_on_nofile)
282{
283#ifdef HAVE_LIBZEPHYR
284  FILE *file;
285  char *tmp, *start;
286  char *buffer = NULL;
287  char *subsfile;
288  ZSubscription_t *subs;
289  int subSize = 1024;
290  int count;
291  struct stat statbuff;
292
293  subs = g_new(ZSubscription_t, subSize);
294  subsfile = owl_zephyr_dotfile(".zephyr.subs", filename);
295
296  if (stat(subsfile, &statbuff) != 0) {
297    g_free(subsfile);
298    if (error_on_nofile == 1)
299      return -1;
300    return 0;
301  }
302
303  ZResetAuthentication();
304  count = 0;
305  file = fopen(subsfile, "r");
306  g_free(subsfile);
307  if (!file)
308    return -1;
309  while (owl_getline(&buffer, file)) {
310    if (buffer[0] == '#' || buffer[0] == '\n')
311        continue;
312
313    if (buffer[0] == '-')
314      start = buffer + 1;
315    else
316      start = buffer;
317
318    if (count >= subSize) {
319      subSize *= 2;
320      subs = g_renew(ZSubscription_t, subs, subSize);
321    }
322   
323    /* add it to the list of subs */
324    if ((tmp = strtok(start, ",\n\r")) == NULL)
325      continue;
326    subs[count].zsub_class = g_strdup(tmp);
327    if ((tmp=strtok(NULL, ",\n\r")) == NULL)
328      continue;
329    subs[count].zsub_classinst = g_strdup(tmp);
330    if ((tmp = strtok(NULL, " \t\n\r")) == NULL)
331      continue;
332    subs[count].zsub_recipient = g_strdup(tmp);
333
334    /* if it started with '-' then add it to the global punt list, and
335     * remove it from the list of subs. */
336    if (buffer[0] == '-') {
337      owl_function_zpunt(subs[count].zsub_class, subs[count].zsub_classinst, subs[count].zsub_recipient, 0);
338      g_free(subs[count].zsub_class);
339      g_free(subs[count].zsub_classinst);
340      g_free(subs[count].zsub_recipient);
341    } else {
342      count++;
343    }
344  }
345  fclose(file);
346  if (buffer)
347    g_free(buffer);
348
349  return owl_zephyr_loadsubs_helper(subs, count);
350#else
351  return 0;
352#endif
353}
354
355/* Load default Barnowl subscriptions
356 *
357 * Returns 0 on success.
358 * Return -2 if there is a failure from zephyr to load the subscriptions.
359 */
360int owl_zephyr_loadbarnowldefaultsubs(void)
361{
362#ifdef HAVE_LIBZEPHYR
363  ZSubscription_t *subs;
364  int subSize = 10; /* Max Barnowl default subs we allow */
365  int count, ret;
366
367  subs = g_new(ZSubscription_t, subSize);
368  ZResetAuthentication();
369  count=0;
370
371  subs[count].zsub_class=g_strdup("message");
372  subs[count].zsub_classinst=g_strdup("*");
373  subs[count].zsub_recipient=g_strdup("%me%");
374  count++;
375
376  ret = owl_zephyr_loadsubs_helper(subs, count);
377  return(ret);
378#else
379  return(0);
380#endif
381}
382
383int owl_zephyr_loaddefaultsubs(void)
384{
385#ifdef HAVE_LIBZEPHYR
386  Code_t ret;
387
388  if (owl_global_is_havezephyr(&g)) {
389    ZSubscription_t subs[10];
390
391    ret = ZSubscribeTo(subs, 0, 0);
392    if (ret != ZERR_NONE) {
393      owl_function_error("Error subscribing to default zephyr notifications: %s.",
394                           error_message(ret));
395      return(-1);
396    }
397  }
398  return(0);
399#else
400  return(0);
401#endif
402}
403
404int owl_zephyr_loadloginsubs(const char *filename)
405{
406#ifdef HAVE_LIBZEPHYR
407  FILE *file;
408  ZSubscription_t *subs;
409  int numSubs = 100;
410  char *subsfile;
411  char *buffer = NULL;
412  int count;
413  struct stat statbuff;
414
415  subs = g_new(ZSubscription_t, numSubs);
416  subsfile = owl_zephyr_dotfile(".anyone", filename);
417
418  if (stat(subsfile, &statbuff) == -1) {
419    g_free(subs);
420    g_free(subsfile);
421    return 0;
422  }
423
424  ZResetAuthentication();
425  count = 0;
426  file = fopen(subsfile, "r");
427  g_free(subsfile);
428  if (file) {
429    while (owl_getline_chomp(&buffer, file)) {
430      if (buffer[0] == '\0' || buffer[0] == '#')
431        continue;
432
433      if (count == numSubs) {
434        numSubs *= 2;
435        subs = g_renew(ZSubscription_t, subs, numSubs);
436      }
437
438      subs[count].zsub_class = g_strdup("login");
439      subs[count].zsub_recipient = g_strdup("*");
440      subs[count].zsub_classinst = long_zuser(buffer);
441
442      count++;
443    }
444    fclose(file);
445  } else {
446    return 0;
447  }
448  g_free(buffer);
449
450  return owl_zephyr_loadsubs_helper(subs, count);
451#else
452  return 0;
453#endif
454}
455
456void unsuball(void)
457{
458#if HAVE_LIBZEPHYR
459  Code_t ret;
460
461  ZResetAuthentication();
462  ret = ZCancelSubscriptions(0);
463  if (ret != ZERR_NONE)
464    owl_function_error("Zephyr: Cancelling subscriptions: %s",
465                       error_message(ret));
466#endif
467}
468
469int owl_zephyr_sub(const char *class, const char *inst, const char *recip)
470{
471#ifdef HAVE_LIBZEPHYR
472  ZSubscription_t subs[5];
473  Code_t ret;
474
475  subs[0].zsub_class=zstr(class);
476  subs[0].zsub_classinst=zstr(inst);
477  subs[0].zsub_recipient=zstr(recip);
478
479  ZResetAuthentication();
480  ret = ZSubscribeTo(subs, 1, 0);
481  if (ret != ZERR_NONE) {
482    owl_function_error("Error subbing to <%s,%s,%s>: %s",
483                       class, inst, recip,
484                       error_message(ret));
485    return(-2);
486  }
487  return(0);
488#else
489  return(0);
490#endif
491}
492
493
494int owl_zephyr_unsub(const char *class, const char *inst, const char *recip)
495{
496#ifdef HAVE_LIBZEPHYR
497  ZSubscription_t subs[5];
498  Code_t ret;
499
500  subs[0].zsub_class=zstr(class);
501  subs[0].zsub_classinst=zstr(inst);
502  subs[0].zsub_recipient=zstr(recip);
503
504  ZResetAuthentication();
505  ret = ZUnsubscribeTo(subs, 1, 0);
506  if (ret != ZERR_NONE) {
507    owl_function_error("Error unsubbing from <%s,%s,%s>: %s",
508                       class, inst, recip,
509                       error_message(ret));
510    return(-2);
511  }
512  return(0);
513#else
514  return(0);
515#endif
516}
517
518/* return a pointer to the data in the Jth field, (NULL terminated by
519 * definition).  Caller must free the return.
520 */
521#ifdef HAVE_LIBZEPHYR
522CALLER_OWN char *owl_zephyr_get_field(const ZNotice_t *n, int j)
523{
524  int i, count, save;
525
526  /* If there's no message here, just run along now */
527  if (n->z_message_len == 0)
528    return(g_strdup(""));
529
530  count=save=0;
531  for (i=0; i<n->z_message_len; i++) {
532    if (n->z_message[i]=='\0') {
533      count++;
534      if (count==j) {
535        /* just found the end of the field we're looking for */
536        return(g_strdup(n->z_message+save));
537      } else {
538        save=i+1;
539      }
540    }
541  }
542  /* catch the last field, which might not be null terminated */
543  if (count==j-1) {
544    return g_strndup(n->z_message + save, n->z_message_len - save);
545  }
546
547  return(g_strdup(""));
548}
549
550CALLER_OWN char *owl_zephyr_get_field_as_utf8(const ZNotice_t *n, int j)
551{
552  int i, count, save;
553
554  /* If there's no message here, just run along now */
555  if (n->z_message_len == 0)
556    return(g_strdup(""));
557
558  count=save=0;
559  for (i = 0; i < n->z_message_len; i++) {
560    if (n->z_message[i]=='\0') {
561      count++;
562      if (count == j) {
563        /* just found the end of the field we're looking for */
564        return(owl_validate_or_convert(n->z_message + save));
565      } else {
566        save = i + 1;
567      }
568    }
569  }
570  /* catch the last field, which might not be null terminated */
571  if (count == j - 1) {
572    char *tmp, *out;
573    tmp = g_strndup(n->z_message + save, n->z_message_len - save);
574    out = owl_validate_or_convert(tmp);
575    g_free(tmp);
576    return out;
577  }
578
579  return(g_strdup(""));
580}
581#else
582CALLER_OWN char *owl_zephyr_get_field(void *n, int j)
583{
584  return(g_strdup(""));
585}
586CALLER_OWN char *owl_zephyr_get_field_as_utf8(void *n, int j)
587{
588  return owl_zephyr_get_field(n, j);
589}
590#endif
591
592
593#ifdef HAVE_LIBZEPHYR
594int owl_zephyr_get_num_fields(const ZNotice_t *n)
595{
596  int i, fields;
597
598  if(n->z_message_len == 0)
599    return 0;
600
601  fields=1;
602  for (i=0; i<n->z_message_len; i++) {
603    if (n->z_message[i]=='\0') fields++;
604  }
605 
606  return(fields);
607}
608#else
609int owl_zephyr_get_num_fields(const void *n)
610{
611  return(0);
612}
613#endif
614
615#ifdef HAVE_LIBZEPHYR
616/* return a pointer to the message, place the message length in k
617 * caller must free the return
618 */
619CALLER_OWN char *owl_zephyr_get_message(const ZNotice_t *n, const owl_message *m)
620{
621#define OWL_NFIELDS     5
622  int i;
623  char *fields[OWL_NFIELDS + 1];
624  char *msg = NULL;
625
626  /* don't let ping messages have a body */
627  if (!strcasecmp(n->z_opcode, "ping")) {
628    return(g_strdup(""));
629  }
630
631  for(i = 0; i < OWL_NFIELDS; i++)
632    fields[i + 1] = owl_zephyr_get_field(n, i + 1);
633
634  /* deal with MIT NOC messages */
635  if (!strcasecmp(n->z_default_format, "@center(@bold(NOC Message))\n\n@bold(Sender:) $1 <$sender>\n@bold(Time:  ) $time\n\n@italic($opcode service on $instance $3.) $4\n")) {
636
637    msg = g_strdup_printf("%s service on %s %s\n%s", n->z_opcode, n->z_class_inst, fields[3], fields[4]);
638  }
639  /* deal with MIT Discuss messages */
640  else if (!strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3 ($5)\nSubject: $4") ||
641           !strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3\nSubject: $4")) {
642   
643    msg = g_strdup_printf("New transaction [%s] entered in %s\nFrom: %s (%s)\nSubject: %s",
644                          fields[1], fields[2], fields[3], fields[5], fields[4]);
645  }
646  /* deal with MIT Moira messages */
647  else if (!strcasecmp(n->z_default_format, "MOIRA $instance on $fromhost:\n $message\n")) {
648    msg = g_strdup_printf("MOIRA %s on %s: %s",
649                          n->z_class_inst,
650                          owl_message_get_hostname(m),
651                          fields[1]);
652  } else {
653    if (owl_zephyr_get_num_fields(n) == 1)
654      msg = g_strdup(fields[1]);
655    else
656      msg = g_strdup(fields[2]);
657  }
658
659  for (i = 0; i < OWL_NFIELDS; i++)
660    g_free(fields[i + 1]);
661
662  return msg;
663}
664#endif
665
666#ifdef HAVE_LIBZEPHYR
667const char *owl_zephyr_get_zsig(const ZNotice_t *n, int *k)
668{
669  /* return a pointer to the zsig if there is one */
670
671  /* message length 0? No zsig */
672  if (n->z_message_len==0) {
673    *k=0;
674    return("");
675  }
676
677  /* If there's only one field, no zsig */
678  if (owl_zephyr_get_num_fields(n) == 1) {
679    *k=0;
680    return("");
681  }
682
683  /* Everything else is field 1 */
684  *k=strlen(n->z_message);
685  return(n->z_message);
686}
687#else
688const char *owl_zephyr_get_zsig(const void *n, int *k)
689{
690  return("");
691}
692#endif
693
694int send_zephyr(const char *opcode, const char *zsig, const char *class, const char *instance, const char *recipient, const char *message)
695{
696#ifdef HAVE_LIBZEPHYR
697  Code_t ret;
698  ZNotice_t notice;
699   
700  memset(&notice, 0, sizeof(notice));
701
702  ZResetAuthentication();
703
704  if (!zsig) zsig="";
705 
706  notice.z_kind=ACKED;
707  notice.z_port=0;
708  notice.z_class=zstr(class);
709  notice.z_class_inst=zstr(instance);
710  notice.z_sender=NULL;
711  if (!strcmp(recipient, "*") || !strcmp(recipient, "@")) {
712    notice.z_recipient=zstr("");
713    if (*owl_global_get_zsender(&g))
714        notice.z_sender=zstr(owl_global_get_zsender(&g));
715  } else {
716    notice.z_recipient=zstr(recipient);
717  }
718  notice.z_default_format=zstr("Class $class, Instance $instance:\nTo: @bold($recipient) at $time $date\nFrom: @bold{$1 <$sender>}\n\n$2");
719  if (opcode) notice.z_opcode=zstr(opcode);
720
721  notice.z_message_len=strlen(zsig)+1+strlen(message);
722  notice.z_message=g_new(char, notice.z_message_len+10);
723  strcpy(notice.z_message, zsig);
724  memcpy(notice.z_message+strlen(zsig)+1, message, strlen(message));
725
726  /* ret=ZSendNotice(&notice, ZAUTH); */
727  ret=ZSrvSendNotice(&notice, ZAUTH, send_zephyr_helper);
728 
729  /* free then check the return */
730  g_free(notice.z_message);
731  ZFreeNotice(&notice);
732  if (ret != ZERR_NONE) {
733    owl_function_error("Error sending zephyr: %s", error_message(ret));
734    return(ret);
735  }
736  return(0);
737#else
738  return(0);
739#endif
740}
741
742#ifdef HAVE_LIBZEPHYR
743Code_t send_zephyr_helper(ZNotice_t *notice, char *buf, int len, int wait)
744{
745  return(ZSendPacket(buf, len, 0));
746}
747#endif
748
749void send_ping(const char *to, const char *zclass, const char *zinstance)
750{
751#ifdef HAVE_LIBZEPHYR
752  send_zephyr("PING", "", zclass, zinstance, to, "");
753#endif
754}
755
756#ifdef HAVE_LIBZEPHYR
757void owl_zephyr_handle_ack(const ZNotice_t *retnotice)
758{
759  char *tmp;
760 
761  /* if it's an HMACK ignore it */
762  if (retnotice->z_kind == HMACK) return;
763
764  if (retnotice->z_kind == SERVNAK) {
765    owl_function_error("Authorization failure sending zephyr");
766  } else if ((retnotice->z_kind != SERVACK) || !retnotice->z_message_len) {
767    owl_function_error("Detected server failure while receiving acknowledgement");
768  } else if (!strcmp(retnotice->z_message, ZSRVACK_SENT)) {
769    if (!strcasecmp(retnotice->z_opcode, "ping")) {
770      return;
771    } else {
772      if (strcasecmp(retnotice->z_recipient, ""))
773      { /* personal */
774        tmp=short_zuser(retnotice->z_recipient);
775        if(!strcasecmp(retnotice->z_class, "message") &&
776           !strcasecmp(retnotice->z_class_inst, "personal")) {
777          owl_function_makemsg("Message sent to %s.", tmp);
778        } else if(!strcasecmp(retnotice->z_class, "message")) { /* instanced, but not classed, personal */
779          owl_function_makemsg("Message sent to %s on -i %s\n", tmp, retnotice->z_class_inst);
780        } else { /* classed personal */
781          owl_function_makemsg("Message sent to %s on -c %s -i %s\n", tmp, retnotice->z_class, retnotice->z_class_inst);
782        }
783        g_free(tmp);
784      } else {
785        /* class / instance message */
786          owl_function_makemsg("Message sent to -c %s -i %s\n", retnotice->z_class, retnotice->z_class_inst);
787      }
788    }
789  } else if (!strcmp(retnotice->z_message, ZSRVACK_NOTSENT)) {
790    if (retnotice->z_recipient == NULL
791        || *retnotice->z_recipient == 0
792        || *retnotice->z_recipient == '@') {
793      char *buff;
794      owl_function_error("No one subscribed to class %s", retnotice->z_class);
795      buff = g_strdup_printf("Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
796      owl_function_adminmsg("", buff);
797      g_free(buff);
798    } else {
799      char *buff;
800      owl_zwrite zw;
801
802      tmp = short_zuser(retnotice->z_recipient);
803      owl_function_error("%s: Not logged in or subscribing.", tmp);
804      /*
805       * These error messages are often over 80 chars, but users who want to
806       * see the whole thing can scroll to the side, and for those with wide
807       * terminals or who don't care, not splitting saves a line in the UI
808       */
809      if(strcasecmp(retnotice->z_class, "message")) {
810        buff = g_strdup_printf(
811                 "Could not send message to %s: "
812                 "not logged in or subscribing to class %s, instance %s.\n",
813                 tmp,
814                 retnotice->z_class,
815                 retnotice->z_class_inst);
816      } else if(strcasecmp(retnotice->z_class_inst, "personal")) {
817        buff = g_strdup_printf(
818                 "Could not send message to %s: "
819                 "not logged in or subscribing to instance %s.\n",
820                 tmp,
821                 retnotice->z_class_inst);
822      } else {
823        buff = g_strdup_printf(
824                 "Could not send message to %s: "
825                 "not logged in or subscribing to messages.\n",
826                 tmp);
827      }
828      owl_function_adminmsg("", buff);
829
830      memset(&zw, 0, sizeof(zw));
831      zw.class = g_strdup(retnotice->z_class);
832      zw.inst  = g_strdup(retnotice->z_class_inst);
833      zw.realm = g_strdup("");
834      zw.opcode = g_strdup(retnotice->z_opcode);
835      zw.zsig   = g_strdup("");
836      zw.recips = g_ptr_array_new();
837      g_ptr_array_add(zw.recips, g_strdup(retnotice->z_recipient));
838
839      owl_log_outgoing_zephyr_error(&zw, buff);
840
841      owl_zwrite_cleanup(&zw);
842      g_free(buff);
843      g_free(tmp);
844    }
845  } else {
846    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
847  }
848}
849#else
850void owl_zephyr_handle_ack(const void *retnotice)
851{
852}
853#endif
854
855#ifdef HAVE_LIBZEPHYR
856int owl_zephyr_notice_is_ack(const ZNotice_t *n)
857{
858  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
859    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
860    return(1);
861  }
862  return(0);
863}
864#else
865int owl_zephyr_notice_is_ack(const void *n)
866{
867  return(0);
868}
869#endif
870 
871void owl_zephyr_zaway(const owl_message *m)
872{
873#ifdef HAVE_LIBZEPHYR
874  char *tmpbuff, *myuser, *to;
875  owl_zwrite *z;
876 
877  /* bail if it doesn't look like a message we should reply to.  Some
878   * of this defined by the way zaway(1) works
879   */
880  if (strcasecmp(owl_message_get_class(m), "message")) return;
881  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
882  if (!strcasecmp(owl_message_get_sender(m), "")) return;
883  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
884  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
885  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
886  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
887  if (owl_message_get_attribute_value(m, "isauto")) return;
888
889  if (owl_global_is_smartstrip(&g)) {
890    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
891  } else {
892    to=g_strdup(owl_message_get_sender(m));
893  }
894
895  send_zephyr("",
896              "Automated reply:",
897              owl_message_get_class(m),
898              owl_message_get_instance(m),
899              to,
900              owl_global_get_zaway_msg(&g));
901
902  myuser=short_zuser(to);
903  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
904    tmpbuff = owl_string_build_quoted("zwrite %q", myuser);
905  } else {
906    tmpbuff = owl_string_build_quoted("zwrite -i %q %q", owl_message_get_instance(m), myuser);
907  }
908  g_free(myuser);
909  g_free(to);
910
911  z = owl_zwrite_new(tmpbuff);
912  g_free(tmpbuff);
913  if (z == NULL) {
914    owl_function_error("Error creating outgoing zephyr.");
915    return;
916  }
917  owl_zwrite_set_message(z, owl_global_get_zaway_msg(&g));
918  owl_zwrite_set_zsig(z, "Automated reply:");
919
920  /* display the message as an admin message in the receive window */
921  owl_function_add_outgoing_zephyrs(z);
922  owl_zwrite_delete(z);
923#endif
924}
925
926#ifdef HAVE_LIBZEPHYR
927void owl_zephyr_hackaway_cr(ZNotice_t *n)
928{
929  /* replace \r's with ' '.  Gross-ish */
930  int i;
931
932  for (i=0; i<n->z_message_len; i++) {
933    if (n->z_message[i]=='\r') {
934      n->z_message[i]=' ';
935    }
936  }
937}
938#endif
939
940CALLER_OWN char *owl_zephyr_zlocate(const char *user, int auth)
941{
942#ifdef HAVE_LIBZEPHYR
943  int ret, numlocs;
944  int one = 1;
945  ZLocations_t locations;
946  char *myuser;
947  char *p, *result;
948
949  ZResetAuthentication();
950  ret = ZLocateUser(zstr(user), &numlocs, auth ? ZAUTH : ZNOAUTH);
951  if (ret != ZERR_NONE)
952    return g_strdup_printf("Error locating user %s: %s\n",
953                           user, error_message(ret));
954
955  myuser = short_zuser(user);
956  if (numlocs == 0) {
957    result = g_strdup_printf("%s: Hidden or not logged in\n", myuser);
958  } else {
959    result = g_strdup("");
960    for (; numlocs; numlocs--) {
961      ZGetLocations(&locations, &one);
962      p = g_strdup_printf("%s%s: %s\t%s\t%s\n",
963                          result, myuser,
964                          locations.host ? locations.host : "?",
965                          locations.tty ? locations.tty : "?",
966                          locations.time ? locations.time : "?");
967      g_free(result);
968      result = p;
969    }
970  }
971  g_free(myuser);
972
973  return result;
974#else
975  return g_strdup("");
976#endif
977}
978
979void owl_zephyr_addsub(const char *filename, const char *class, const char *inst, const char *recip)
980{
981#ifdef HAVE_LIBZEPHYR
982  char *line, *subsfile, *s = NULL;
983  FILE *file;
984  int duplicate = 0;
985
986  line = owl_zephyr_makesubline(class, inst, recip);
987  subsfile = owl_zephyr_dotfile(".zephyr.subs", filename);
988
989  /* if the file already exists, check to see if the sub is already there */
990  file = fopen(subsfile, "r");
991  if (file) {
992    while (owl_getline(&s, file)) {
993      if (strcasecmp(s, line) == 0) {
994        owl_function_error("Subscription already present in %s", subsfile);
995        duplicate++;
996      }
997    }
998    fclose(file);
999    g_free(s);
1000  }
1001
1002  if (!duplicate) {
1003    file = fopen(subsfile, "a");
1004    if (file) {
1005      fputs(line, file);
1006      fclose(file);
1007      owl_function_makemsg("Subscription added");
1008    } else {
1009      owl_function_error("Error opening file %s for writing", subsfile);
1010    }
1011  }
1012
1013  g_free(line);
1014#endif
1015}
1016
1017void owl_zephyr_delsub(const char *filename, const char *class, const char *inst, const char *recip)
1018{
1019#ifdef HAVE_LIBZEPHYR
1020  char *line, *subsfile;
1021  int linesdeleted;
1022 
1023  line=owl_zephyr_makesubline(class, inst, recip);
1024  line[strlen(line)-1]='\0';
1025
1026  subsfile = owl_zephyr_dotfile(".zephyr.subs", filename);
1027 
1028  linesdeleted = owl_util_file_deleteline(subsfile, line, 1);
1029  if (linesdeleted > 0) {
1030    owl_function_makemsg("Subscription removed");
1031  } else if (linesdeleted == 0) {
1032    owl_function_error("No subscription present in %s", subsfile);
1033  }
1034  g_free(subsfile);
1035  g_free(line);
1036#endif
1037}
1038
1039/* caller must free the return */
1040CALLER_OWN char *owl_zephyr_makesubline(const char *class, const char *inst, const char *recip)
1041{
1042  return g_strdup_printf("%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
1043}
1044
1045
1046void owl_zephyr_zlog_in(void)
1047{
1048#ifdef HAVE_LIBZEPHYR
1049  ZResetAuthentication();
1050
1051  /* ZSetLocation, and store the default value as the current value */
1052  owl_global_set_exposure(&g, owl_global_get_default_exposure(&g));
1053#endif
1054}
1055
1056void owl_zephyr_zlog_out(void)
1057{
1058#ifdef HAVE_LIBZEPHYR
1059  Code_t ret;
1060
1061  ZResetAuthentication();
1062  ret = ZUnsetLocation();
1063  if (ret != ZERR_NONE)
1064    owl_function_error("Error unsetting location: %s", error_message(ret));
1065#endif
1066}
1067
1068void owl_zephyr_addbuddy(const char *name)
1069{
1070  char *filename;
1071  FILE *file;
1072 
1073  filename = owl_zephyr_dotfile(".anyone", NULL);
1074  file = fopen(filename, "a");
1075  g_free(filename);
1076  if (!file) {
1077    owl_function_error("Error opening zephyr buddy file for append");
1078    return;
1079  }
1080  fprintf(file, "%s\n", name);
1081  fclose(file);
1082}
1083
1084void owl_zephyr_delbuddy(const char *name)
1085{
1086  char *filename;
1087
1088  filename = owl_zephyr_dotfile(".anyone", NULL);
1089  owl_util_file_deleteline(filename, name, 0);
1090  g_free(filename);
1091}
1092
1093/* return auth string */
1094#ifdef HAVE_LIBZEPHYR
1095const char *owl_zephyr_get_authstr(const ZNotice_t *n)
1096{
1097
1098  if (!n) return("UNKNOWN");
1099
1100  if (n->z_auth == ZAUTH_FAILED) {
1101    return ("FAILED");
1102  } else if (n->z_auth == ZAUTH_NO) {
1103    return ("NO");
1104  } else if (n->z_auth == ZAUTH_YES) {
1105    return ("YES");
1106  } else {
1107    return ("UNKNOWN");
1108  }           
1109}
1110#else
1111const char *owl_zephyr_get_authstr(const void *n)
1112{
1113  return("");
1114}
1115#endif
1116
1117/* Returns a buffer of subscriptions or an error message.  Caller must
1118 * free the return.
1119 */
1120CALLER_OWN char *owl_zephyr_getsubs(void)
1121{
1122#ifdef HAVE_LIBZEPHYR
1123  Code_t ret;
1124  int num, i, one;
1125  ZSubscription_t sub;
1126  GString *buf;
1127
1128  ret = ZRetrieveSubscriptions(0, &num);
1129  if (ret != ZERR_NONE)
1130    return g_strdup_printf("Zephyr: Requesting subscriptions: %s\n", error_message(ret));
1131  if (num == 0)
1132    return g_strdup("Zephyr: No subscriptions retrieved\n");
1133
1134  buf = g_string_new("");
1135  for (i=0; i<num; i++) {
1136    one = 1;
1137    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
1138      ZFlushSubscriptions();
1139      g_string_free(buf, true);
1140      return g_strdup_printf("Zephyr: Getting subscriptions: %s\n", error_message(ret));
1141    } else {
1142      /* g_string_append_printf would be backwards. */
1143      char *tmp = g_strdup_printf("<%s,%s,%s>\n",
1144                                  sub.zsub_class,
1145                                  sub.zsub_classinst,
1146                                  sub.zsub_recipient);
1147      g_string_prepend(buf, tmp);
1148      g_free(tmp);
1149    }
1150  }
1151
1152  ZFlushSubscriptions();
1153  return g_string_free(buf, false);
1154#else
1155  return(g_strdup("Zephyr not available"));
1156#endif
1157}
1158
1159const char *owl_zephyr_get_variable(const char *var)
1160{
1161#ifdef HAVE_LIBZEPHYR
1162  return(ZGetVariable(zstr(var)));
1163#else
1164  return("");
1165#endif
1166}
1167
1168void owl_zephyr_set_locationinfo(const char *host, const char *val)
1169{
1170#ifdef HAVE_LIBZEPHYR
1171  ZInitLocationInfo(zstr(host), zstr(val));
1172#endif
1173}
1174
1175const char *owl_zephyr_normalize_exposure(const char *exposure)
1176{
1177  if (exposure == NULL)
1178    return NULL;
1179#ifdef HAVE_LIBZEPHYR
1180  return ZParseExposureLevel(zstr(exposure));
1181#else
1182  return exposure;
1183#endif
1184}
1185
1186int owl_zephyr_set_default_exposure(const char *exposure)
1187{
1188#ifdef HAVE_LIBZEPHYR
1189  Code_t ret;
1190  if (exposure == NULL)
1191    return -1;
1192  exposure = ZParseExposureLevel(zstr(exposure));
1193  if (exposure == NULL)
1194    return -1;
1195  ret = ZSetVariable(zstr("exposure"), zstr(exposure)); /* ZSetVariable does file I/O */
1196  if (ret != ZERR_NONE) {
1197    owl_function_error("Unable to set default exposure location: %s", error_message(ret));
1198    return -1;
1199  }
1200#endif
1201  return 0;
1202}
1203
1204const char *owl_zephyr_get_default_exposure(void)
1205{
1206#ifdef HAVE_LIBZEPHYR
1207  const char *exposure = ZGetVariable(zstr("exposure")); /* ZGetVariable does file I/O */
1208  if (exposure == NULL)
1209    return EXPOSE_REALMVIS;
1210  exposure = ZParseExposureLevel(zstr(exposure));
1211  if (exposure == NULL) /* The user manually entered an invalid value in ~/.zephyr.vars, or something weird happened. */
1212    return EXPOSE_REALMVIS;
1213  return exposure;
1214#else
1215  return "";
1216#endif
1217}
1218
1219int owl_zephyr_set_exposure(const char *exposure)
1220{
1221#ifdef HAVE_LIBZEPHYR
1222  Code_t ret;
1223  if (exposure == NULL)
1224    return -1;
1225  exposure = ZParseExposureLevel(zstr(exposure));
1226  if (exposure == NULL)
1227    return -1;
1228  ret = ZSetLocation(zstr(exposure));
1229  if (ret != ZERR_NONE
1230#ifdef ZCONST
1231      /* Before zephyr 3.0, ZSetLocation had a bug where, if you were subscribed
1232       * to your own logins, it could wait for the wrong notice and return
1233       * ZERR_INTERNAL when found neither SERVACK nor SERVNAK. Suppress it when
1234       * building against the old ABI. */
1235      && ret != ZERR_INTERNAL
1236#endif
1237     ) {
1238    owl_function_error("Unable to set exposure level: %s.", error_message(ret));
1239    return -1;
1240  }
1241#endif
1242  return 0;
1243}
1244 
1245/* Strip a local realm fron the zephyr user name.
1246 * The caller must free the return
1247 */
1248CALLER_OWN char *short_zuser(const char *in)
1249{
1250  char *ptr = strrchr(in, '@');
1251  if (ptr && (ptr[1] == '\0' || !strcasecmp(ptr+1, owl_zephyr_get_realm()))) {
1252    return g_strndup(in, ptr - in);
1253  }
1254  return g_strdup(in);
1255}
1256
1257/* Append a local realm to the zephyr user name if necessary.
1258 * The caller must free the return.
1259 */
1260CALLER_OWN char *long_zuser(const char *in)
1261{
1262  char *ptr = strrchr(in, '@');
1263  if (ptr) {
1264    if (ptr[1])
1265      return g_strdup(in);
1266    /* Ends in @, so assume default realm. */
1267    return g_strdup_printf("%s%s", in, owl_zephyr_get_realm());
1268  }
1269  return g_strdup_printf("%s@%s", in, owl_zephyr_get_realm());
1270}
1271
1272/* Return the realm of the zephyr user name. Caller does /not/ free the return.
1273 * The string is valid at least as long as the input is.
1274 */
1275const char *zuser_realm(const char *in)
1276{
1277  char *ptr = strrchr(in, '@');
1278  /* If the name has an @ and does not end with @, use that. Otherwise, take
1279   * the default realm. */
1280  return (ptr && ptr[1]) ? (ptr+1) : owl_zephyr_get_realm();
1281}
1282
1283/* strip out the instance from a zsender's principal.  Preserves the
1284 * realm if present.  Leave host/ and daemon/ krb5 principals
1285 * alone. Also leave rcmd. and daemon. krb4 principals alone. The
1286 * caller must free the return.
1287 */
1288CALLER_OWN char *owl_zephyr_smartstripped_user(const char *in)
1289{
1290  char *slash, *dot, *realm, *out;
1291
1292  out = g_strdup(in);
1293
1294  /* bail immeaditly if we don't have to do any work */
1295  slash = strchr(out, '/');
1296  dot = strchr(out, '.');
1297  if (!slash && !dot) {
1298    return(out);
1299  }
1300
1301  if (!strncasecmp(out, OWL_ZEPHYR_NOSTRIP_HOST, strlen(OWL_ZEPHYR_NOSTRIP_HOST)) ||
1302      !strncasecmp(out, OWL_ZEPHYR_NOSTRIP_RCMD, strlen(OWL_ZEPHYR_NOSTRIP_RCMD)) ||
1303      !strncasecmp(out, OWL_ZEPHYR_NOSTRIP_DAEMON5, strlen(OWL_ZEPHYR_NOSTRIP_DAEMON5)) ||
1304      !strncasecmp(out, OWL_ZEPHYR_NOSTRIP_DAEMON4, strlen(OWL_ZEPHYR_NOSTRIP_DAEMON4))) {
1305    return(out);
1306  }
1307
1308  realm = strchr(out, '@');
1309  if (!slash && dot && realm && (dot > realm)) {
1310    /* There's no '/', and the first '.' is in the realm */
1311    return(out);
1312  }
1313
1314  /* remove the realm from out, but hold on to it */
1315  if (realm) realm[0]='\0';
1316
1317  /* strip */
1318  if (slash) slash[0] = '\0';  /* krb5 style user/instance */
1319  else if (dot) dot[0] = '\0'; /* krb4 style user.instance */
1320
1321  /* reattach the realm if we had one */
1322  if (realm) {
1323    strcat(out, "@");
1324    strcat(out, realm+1);
1325  }
1326
1327  return(out);
1328}
1329
1330/* Read the list of users in 'filename' as a .anyone file, and return as a
1331 * GPtrArray of strings.  If 'filename' is NULL, use the default .anyone file
1332 * in the users home directory.  Returns NULL on failure.
1333 */
1334GPtrArray *owl_zephyr_get_anyone_list(const char *filename)
1335{
1336#ifdef HAVE_LIBZEPHYR
1337  char *ourfile, *tmp, *s = NULL;
1338  FILE *f;
1339  GPtrArray *list;
1340
1341  ourfile = owl_zephyr_dotfile(".anyone", filename);
1342
1343  f = fopen(ourfile, "r");
1344  if (!f) {
1345    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
1346    g_free(ourfile);
1347    return NULL;
1348  }
1349  g_free(ourfile);
1350
1351  list = g_ptr_array_new();
1352  while (owl_getline_chomp(&s, f)) {
1353    /* ignore comments, blank lines etc. */
1354    if (s[0] == '#' || s[0] == '\0')
1355      continue;
1356
1357    /* ignore from # on */
1358    tmp = strchr(s, '#');
1359    if (tmp)
1360      tmp[0] = '\0';
1361
1362    /* ignore from SPC */
1363    tmp = strchr(s, ' ');
1364    if (tmp)
1365      tmp[0] = '\0';
1366
1367    g_ptr_array_add(list, long_zuser(s));
1368  }
1369  g_free(s);
1370  fclose(f);
1371  return list;
1372#else
1373  return NULL;
1374#endif
1375}
1376
1377#ifdef HAVE_LIBZEPHYR
1378void owl_zephyr_process_pseudologin(ZNotice_t *n)
1379{
1380  owl_message *m;
1381  owl_zbuddylist *zbl;
1382  GList **zaldlist;
1383  GList *zaldptr;
1384  ZAsyncLocateData_t *zald = NULL;
1385  ZLocations_t location;
1386  int numlocs, ret, notify;
1387
1388  /* Find a ZALD to match this notice. */
1389  zaldlist = owl_global_get_zaldlist(&g);
1390  zaldptr = g_list_first(*zaldlist);
1391  while (zaldptr) {
1392    if (ZCompareALDPred(n, zaldptr->data)) {
1393      zald = zaldptr->data;
1394      *zaldlist = g_list_remove(*zaldlist, zaldptr->data);
1395      break;
1396    }
1397    zaldptr = g_list_next(zaldptr);
1398  }
1399  if (zald) {
1400    /* Deal with notice. */
1401    notify = owl_global_get_pseudologin_notify(&g);
1402    zbl = owl_global_get_zephyr_buddylist(&g);
1403    ret = ZParseLocations(n, zald, &numlocs, NULL);
1404    if (ret == ZERR_NONE) {
1405      if (numlocs > 0 && !owl_zbuddylist_contains_user(zbl, zald->user)) {
1406        if (notify) {
1407          numlocs = 1;
1408          ret = ZGetLocations(&location, &numlocs);
1409          if (ret == ZERR_NONE) {
1410            /* Send a PSEUDO LOGIN! */
1411            m = g_new(owl_message, 1);
1412            owl_message_create_pseudo_zlogin(m, 0, zald->user,
1413                                             location.host,
1414                                             location.time,
1415                                             location.tty);
1416            owl_global_messagequeue_addmsg(&g, m);
1417          }
1418          owl_zbuddylist_adduser(zbl, zald->user);
1419          owl_function_debugmsg("owl_function_zephyr_buddy_check: login for %s ", zald->user);
1420        }
1421      } else if (numlocs == 0 && owl_zbuddylist_contains_user(zbl, zald->user)) {
1422        /* Send a PSEUDO LOGOUT! */
1423        if (notify) {
1424          m = g_new(owl_message, 1);
1425          owl_message_create_pseudo_zlogin(m, 1, zald->user, "", "", "");
1426          owl_global_messagequeue_addmsg(&g, m);
1427        }
1428        owl_zbuddylist_deluser(zbl, zald->user);
1429        owl_function_debugmsg("owl_function_zephyr_buddy_check: logout for %s ", zald->user);
1430      }
1431    }
1432    ZFreeALD(zald);
1433    g_free(zald);
1434  }
1435}
1436#else
1437void owl_zephyr_process_pseudologin(void *n)
1438{
1439}
1440#endif
1441
1442gboolean owl_zephyr_buddycheck_timer(void *data)
1443{
1444  if (owl_global_is_pseudologins(&g)) {
1445    owl_function_debugmsg("Doing zephyr buddy check");
1446    owl_function_zephyr_buddy_check(1);
1447  } else {
1448    owl_function_debugmsg("Warning: owl_zephyr_buddycheck_timer call pointless; timer should have been disabled");
1449  }
1450  return TRUE;
1451}
1452
1453/*
1454 * Process zephyrgrams from libzephyr's queue. To prevent starvation,
1455 * process a maximum of OWL_MAX_ZEPHYRGRAMS_TO_PROCESS.
1456 *
1457 * Returns the number of zephyrgrams processed.
1458 */
1459
1460#define OWL_MAX_ZEPHYRGRAMS_TO_PROCESS 20
1461
1462#ifdef HAVE_LIBZEPHYR
1463static int _owl_zephyr_process_events(void)
1464{
1465  int zpendcount=0;
1466  ZNotice_t notice;
1467  Code_t code;
1468  owl_message *m=NULL;
1469
1470  while(owl_zephyr_zpending() && zpendcount < OWL_MAX_ZEPHYRGRAMS_TO_PROCESS) {
1471    if (owl_zephyr_zpending()) {
1472      if ((code = ZReceiveNotice(&notice, NULL)) != ZERR_NONE) {
1473        owl_function_debugmsg("Error: %s while calling ZReceiveNotice\n",
1474                              error_message(code));
1475        continue;
1476      }
1477      zpendcount++;
1478
1479      /* is this an ack from a zephyr we sent? */
1480      if (owl_zephyr_notice_is_ack(&notice)) {
1481        owl_zephyr_handle_ack(&notice);
1482        ZFreeNotice(&notice);
1483        continue;
1484      }
1485
1486      /* if it's a ping and we're not viewing pings then skip it */
1487      if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
1488        ZFreeNotice(&notice);
1489        continue;
1490      }
1491
1492      /* if it is a LOCATE message, it's for pseudologins. */
1493      if (strcmp(notice.z_opcode, LOCATE_LOCATE) == 0) {
1494        owl_zephyr_process_pseudologin(&notice);
1495        ZFreeNotice(&notice);
1496        continue;
1497      }
1498
1499      /* create the new message */
1500      m=g_new(owl_message, 1);
1501      owl_message_create_from_znotice(m, &notice);
1502
1503      owl_global_messagequeue_addmsg(&g, m);
1504    }
1505  }
1506  return zpendcount;
1507}
1508
1509typedef struct { /*noproto*/
1510  GSource source;
1511  GPollFD poll_fd;
1512} owl_zephyr_event_source;
1513
1514static GSource *owl_zephyr_event_source_new(int fd) {
1515  GSource *source;
1516  owl_zephyr_event_source *event_source;
1517
1518  source = g_source_new(&zephyr_event_funcs, sizeof(owl_zephyr_event_source));
1519  event_source = (owl_zephyr_event_source*) source;
1520  event_source->poll_fd.fd = fd;
1521  event_source->poll_fd.events = G_IO_IN | G_IO_HUP | G_IO_ERR;
1522  g_source_add_poll(source, &event_source->poll_fd);
1523
1524  return source;
1525}
1526
1527static gboolean owl_zephyr_event_prepare(GSource *source, int *timeout) {
1528  *timeout = -1;
1529  return owl_zephyr_zqlength() > 0;
1530}
1531
1532static gboolean owl_zephyr_event_check(GSource *source) {
1533  owl_zephyr_event_source *event_source = (owl_zephyr_event_source*)source;
1534  if (event_source->poll_fd.revents & event_source->poll_fd.events)
1535    return owl_zephyr_zpending() > 0;
1536  return FALSE;
1537}
1538
1539static gboolean owl_zephyr_event_dispatch(GSource *source, GSourceFunc callback, gpointer user_data) {
1540  _owl_zephyr_process_events();
1541  return TRUE;
1542}
1543#endif
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