source: zephyr.c @ fa4562c

release-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since fa4562c was fa4562c, checked in by Anders Kaseorg <andersk@mit.edu>, 9 years ago
Prepare code for adding const qualifiers for char * and void *. Signed-off-by: Anders Kaseorg <andersk@mit.edu>
  • Property mode set to 100644
File size: 32.3 KB
Line 
1#include <stdlib.h>
2#include <unistd.h>
3#include <sys/types.h>
4#include <sys/wait.h>
5#include <sys/stat.h>
6#include <string.h>
7#include "owl.h"
8
9#ifdef HAVE_LIBZEPHYR
10static GList *deferred_subs = NULL;
11
12typedef struct _owl_sub_list {                            /* noproto */
13  ZSubscription_t *subs;
14  int nsubs;
15} owl_sub_list;
16
17Code_t ZResetAuthentication();
18#endif
19
20#define HM_SVC_FALLBACK         htons((unsigned short) 2104)
21
22#ifdef HAVE_LIBZEPHYR
23void owl_zephyr_initialize()
24{
25  int ret;
26  struct servent *sp;
27  struct sockaddr_in sin;
28  ZNotice_t req;
29  Code_t code;
30  owl_dispatch *dispatch;
31
32  /*
33   * Code modified from libzephyr's ZhmStat.c
34   *
35   * Modified to add the fd to our select loop, rather than hanging
36   * until we get an ack.
37   */
38
39  if ((ret = ZOpenPort(NULL)) != ZERR_NONE) {
40    owl_function_error("Error opening Zephyr port: %s", error_message(ret));
41    return;
42  }
43
44  (void) memset(&sin, 0, sizeof(struct sockaddr_in));
45
46  sp = getservbyname(HM_SVCNAME, "udp");
47
48  sin.sin_port = (sp) ? sp->s_port : HM_SVC_FALLBACK;
49  sin.sin_family = AF_INET;
50
51  sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
52
53  (void) memset(&req, 0, sizeof(req));
54  req.z_kind = STAT;
55  req.z_port = 0;
56  req.z_class = zstr(HM_STAT_CLASS);
57  req.z_class_inst = zstr(HM_STAT_CLIENT);
58  req.z_opcode = zstr(HM_GIMMESTATS);
59  req.z_sender = zstr("");
60  req.z_recipient = zstr("");
61  req.z_default_format = zstr("");
62  req.z_message_len = 0;
63
64  if ((code = ZSetDestAddr(&sin)) != ZERR_NONE) {
65    owl_function_error("Initializing Zephyr: %s", error_message(code));
66    return;
67  }
68
69  if ((code = ZSendNotice(&req, ZNOAUTH)) != ZERR_NONE) {
70    owl_function_error("Initializing Zephyr: %s", error_message(code));
71    return;
72  }
73
74  dispatch = owl_malloc(sizeof(*dispatch));
75  dispatch->fd = ZGetFD();
76  dispatch->cfunc = owl_zephyr_finish_initialization;
77  dispatch->destroy = (void(*)(owl_dispatch*))owl_free;
78
79  owl_select_add_dispatch(dispatch);
80}
81
82void owl_zephyr_finish_initialization(owl_dispatch *d) {
83  Code_t code;
84
85  owl_select_remove_dispatch(d->fd);
86
87  ZClosePort();
88
89  if ((code = ZInitialize()) != ZERR_NONE) {
90    owl_function_error("Initializing Zephyr: %s", error_message(code));
91    return;
92  }
93
94  if ((code = ZOpenPort(NULL)) != ZERR_NONE) {
95    owl_function_error("Initializing Zephyr: %s", error_message(code));
96    return;
97  }
98
99  d = owl_malloc(sizeof(owl_dispatch));
100  d->fd = ZGetFD();
101  d->cfunc = &owl_zephyr_process_events;
102  d->destroy = NULL;
103  owl_select_add_dispatch(d);
104  owl_global_set_havezephyr(&g);
105
106  if(g.load_initial_subs) {
107    owl_zephyr_load_initial_subs();
108  }
109  while(deferred_subs != NULL) {
110    owl_sub_list *subs = deferred_subs->data;
111    owl_function_debugmsg("Loading %d deferred subs.", subs->nsubs);
112    owl_zephyr_loadsubs_helper(subs->subs, subs->nsubs);
113    deferred_subs = g_list_delete_link(deferred_subs, deferred_subs);
114    owl_free(subs);
115  }
116
117  /* zlog in if we need to */
118  if (owl_global_is_startuplogin(&g)) {
119    owl_function_debugmsg("startup: doing zlog in");
120    owl_zephyr_zlog_in();
121  }
122}
123
124void owl_zephyr_load_initial_subs() {
125  int ret_sd, ret_bd, ret_u;
126
127  owl_function_debugmsg("startup: loading initial zephyr subs");
128
129  /* load default subscriptions */
130  ret_sd = owl_zephyr_loaddefaultsubs();
131
132  /* load Barnowl default subscriptions */
133  ret_bd = owl_zephyr_loadbarnowldefaultsubs();
134
135  /* load subscriptions from subs file */
136  ret_u = owl_zephyr_loadsubs(NULL, 0);
137
138  if (ret_sd || ret_bd || ret_u) {
139    owl_function_error("Error loading zephyr subscriptions");
140  } else if (ret_u!=-1) {
141    owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
142  }
143
144  /* load login subscriptions */
145  if (owl_global_is_loginsubs(&g)) {
146    owl_function_debugmsg("startup: loading login subs");
147    owl_function_loadloginsubs(NULL);
148  }
149}
150#else
151void owl_zephyr_initialize()
152{
153}
154#endif
155
156
157int owl_zephyr_shutdown()
158{
159#ifdef HAVE_LIBZEPHYR
160  if(owl_global_is_havezephyr(&g)) {
161    unsuball();
162    ZClosePort();
163  }
164#endif
165  return(0);
166}
167
168int owl_zephyr_zpending()
169{
170#ifdef HAVE_LIBZEPHYR
171  if(owl_global_is_havezephyr(&g))
172    return(ZPending());
173  else
174    return 0;
175#else
176  return(0);
177#endif
178}
179
180const char *owl_zephyr_get_realm()
181{
182#ifdef HAVE_LIBZEPHYR
183  return(ZGetRealm());
184#else
185  return("");
186#endif
187}
188
189char *owl_zephyr_get_sender()
190{
191#ifdef HAVE_LIBZEPHYR
192  return(ZGetSender());
193#else
194  return("");
195#endif
196}
197
198#ifdef HAVE_LIBZEPHYR
199int owl_zephyr_loadsubs_helper(ZSubscription_t subs[], int count)
200{
201  int ret = 0;
202  if (owl_global_is_havezephyr(&g)) {
203    int i;
204    /* sub without defaults */
205    if (ZSubscribeToSansDefaults(subs,count,0) != ZERR_NONE) {
206      owl_function_error("Error subscribing to zephyr notifications.");
207      ret=-2;
208    }
209
210    /* free stuff */
211    for (i=0; i<count; i++) {
212      owl_free(subs[i].zsub_class);
213      owl_free(subs[i].zsub_classinst);
214      owl_free(subs[i].zsub_recipient);
215    }
216
217    owl_free(subs);
218  } else {
219    owl_sub_list *s = owl_malloc(sizeof(owl_sub_list));
220    s->subs = subs;
221    s->nsubs = count;
222    deferred_subs = g_list_append(deferred_subs, s);
223  }
224
225  return ret;
226}
227#endif
228
229/* Load zephyr subscriptions from 'filename'.  If 'filename' is NULL,
230 * the default file $HOME/.zephyr.subs will be used.
231 *
232 * Returns 0 on success.  If the file does not exist, return -1 if
233 * 'error_on_nofile' is 1, otherwise return 0.  Return -1 if the file
234 * exists but can not be read.  Return -2 if there is a failure from
235 * zephyr to load the subscriptions.
236 */
237int owl_zephyr_loadsubs(char *filename, int error_on_nofile)
238{
239#ifdef HAVE_LIBZEPHYR
240  FILE *file;
241  char *tmp, *start;
242  char buffer[1024], subsfile[1024];
243  ZSubscription_t *subs;
244  int subSize = 1024;
245  int count, ret;
246  struct stat statbuff;
247
248  subs = owl_malloc(sizeof(ZSubscription_t) * subSize);
249  if (filename==NULL) {
250    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
251  } else {
252    strcpy(subsfile, filename);
253  }
254
255  ret=stat(subsfile, &statbuff);
256  if (ret) {
257    if (error_on_nofile==1) return(-1);
258    return(0);
259  }
260
261  ZResetAuthentication();
262  count=0;
263  file=fopen(subsfile, "r");
264  if (!file) return(-1);
265  while ( fgets(buffer, 1024, file)!=NULL ) {
266    if (buffer[0]=='#' || buffer[0]=='\n' || buffer[0]=='\n') continue;
267   
268    if (buffer[0]=='-') {
269      start=buffer+1;
270    } else {
271      start=buffer;
272    }
273   
274    if (count >= subSize) {
275      subSize *= 2;
276      subs = owl_realloc(subs, sizeof(ZSubscription_t) * subSize);
277    }
278   
279    /* add it to the list of subs */
280    if ((tmp=strtok(start, ",\n\r"))==NULL) continue;
281    subs[count].zsub_class=owl_strdup(tmp);
282    if ((tmp=strtok(NULL, ",\n\r"))==NULL) continue;
283    subs[count].zsub_classinst=owl_strdup(tmp);
284    if ((tmp=strtok(NULL, " \t\n\r"))==NULL) continue;
285    subs[count].zsub_recipient=owl_strdup(tmp);
286   
287    /* if it started with '-' then add it to the global punt list, and
288     * remove it from the list of subs. */
289    if (buffer[0]=='-') {
290      owl_function_zpunt(subs[count].zsub_class, subs[count].zsub_classinst, subs[count].zsub_recipient, 0);
291      owl_free(subs[count].zsub_class);
292      owl_free(subs[count].zsub_classinst);
293      owl_free(subs[count].zsub_recipient);
294    }
295    else {
296      count++;
297    }
298  }
299  fclose(file);
300
301  ret = owl_zephyr_loadsubs_helper(subs, count);
302  return(ret);
303#else
304  return(0);
305#endif
306}
307
308/* Load default Barnowl subscriptions
309 *
310 * Returns 0 on success.
311 * Return -2 if there is a failure from zephyr to load the subscriptions.
312 */
313int owl_zephyr_loadbarnowldefaultsubs()
314{
315#ifdef HAVE_LIBZEPHYR
316  ZSubscription_t *subs;
317  int subSize = 10; /* Max Barnowl default subs we allow */
318  int count, ret;
319
320  subs = owl_malloc(sizeof(ZSubscription_t) * subSize);
321  ret = 0;
322  ZResetAuthentication();
323  count=0;
324
325  subs[count].zsub_class=owl_strdup("message");
326  subs[count].zsub_classinst=owl_strdup("*");
327  subs[count].zsub_recipient=owl_strdup("%me%");
328  count++;
329
330  ret = owl_zephyr_loadsubs_helper(subs, count);
331  return(ret);
332#else
333  return(0);
334#endif
335}
336
337int owl_zephyr_loaddefaultsubs()
338{
339#ifdef HAVE_LIBZEPHYR
340  ZSubscription_t subs[10];
341   
342  if (ZSubscribeTo(subs,0,0) != ZERR_NONE) {
343    owl_function_error("Error subscribing to default zephyr notifications.");
344    return(-1);
345  }
346  return(0);
347#else
348  return(0);
349#endif
350}
351
352int owl_zephyr_loadloginsubs(char *filename)
353{
354#ifdef HAVE_LIBZEPHYR
355  FILE *file;
356  ZSubscription_t *subs;
357  int numSubs = 100;
358  char subsfile[1024], buffer[1024];
359  int count, ret;
360  struct stat statbuff;
361
362  subs = owl_malloc(numSubs * sizeof(ZSubscription_t));
363
364  if (filename==NULL) {
365    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".anyone");
366  } else {
367    strcpy(subsfile, filename);
368  }
369 
370  ret=stat(subsfile, &statbuff);
371  if (ret) return(0);
372
373  ret=0;
374
375  ZResetAuthentication();
376  count=0;
377  file=fopen(subsfile, "r");
378  if (file) {
379    while ( fgets(buffer, 1024, file)!=NULL ) {
380      if (buffer[0]=='#' || buffer[0]=='\n' || buffer[0]=='\n') continue;
381     
382      if (count == numSubs) {
383        numSubs *= 2;
384        subs = owl_realloc(subs, numSubs * sizeof(ZSubscription_t));
385      }
386
387      buffer[strlen(buffer)-1]='\0';
388      subs[count].zsub_class=owl_strdup("login");
389      subs[count].zsub_recipient=owl_strdup("*");
390      if (strchr(buffer, '@')) {
391        subs[count].zsub_classinst=owl_strdup(buffer);
392      } else {
393        subs[count].zsub_classinst=owl_sprintf("%s@%s", buffer, ZGetRealm());
394      }
395
396      count++;
397    }
398    fclose(file);
399  } else {
400    count=0;
401    ret=-1;
402  }
403
404  ret = owl_zephyr_loadsubs_helper(subs, count);
405  return(ret);
406#else
407  return(0);
408#endif
409}
410
411void unsuball()
412{
413#if HAVE_LIBZEPHYR
414  int ret;
415
416  ZResetAuthentication();
417  ret=ZCancelSubscriptions(0);
418  if (ret != ZERR_NONE) {
419    com_err("owl",ret,"while unsubscribing");
420  }
421#endif
422}
423
424int owl_zephyr_sub(char *class, char *inst, char *recip)
425{
426#ifdef HAVE_LIBZEPHYR
427  ZSubscription_t subs[5];
428
429  subs[0].zsub_class=zstr(class);
430  subs[0].zsub_classinst=zstr(inst);
431  subs[0].zsub_recipient=zstr(recip);
432
433  ZResetAuthentication();
434  if (ZSubscribeTo(subs,1,0) != ZERR_NONE) {
435    owl_function_error("Error subbing to <%s,%s,%s>", class, inst, recip);
436    return(-2);
437  }
438  return(0);
439#else
440  return(0);
441#endif
442}
443
444
445int owl_zephyr_unsub(char *class, char *inst, char *recip)
446{
447#ifdef HAVE_LIBZEPHYR
448  ZSubscription_t subs[5];
449
450  subs[0].zsub_class=zstr(class);
451  subs[0].zsub_classinst=zstr(inst);
452  subs[0].zsub_recipient=zstr(recip);
453
454  ZResetAuthentication();
455  if (ZUnsubscribeTo(subs,1,0) != ZERR_NONE) {
456    owl_function_error("Error unsubbing from <%s,%s,%s>", class, inst, recip);
457    return(-2);
458  }
459  return(0);
460#else
461  return(0);
462#endif
463}
464
465/* return a pointer to the data in the Jth field, (NULL terminated by
466 * definition).  Caller must free the return.
467 */
468#ifdef HAVE_LIBZEPHYR
469char *owl_zephyr_get_field(ZNotice_t *n, int j)
470{
471  int i, count, save;
472  char *out;
473
474  /* If there's no message here, just run along now */
475  if (n->z_message_len == 0)
476    return(owl_strdup(""));
477
478  count=save=0;
479  for (i=0; i<n->z_message_len; i++) {
480    if (n->z_message[i]=='\0') {
481      count++;
482      if (count==j) {
483        /* just found the end of the field we're looking for */
484        return(owl_strdup(n->z_message+save));
485      } else {
486        save=i+1;
487      }
488    }
489  }
490  /* catch the last field, which might not be null terminated */
491  if (count==j-1) {
492    out=owl_malloc(n->z_message_len-save+5);
493    memcpy(out, n->z_message+save, n->z_message_len-save);
494    out[n->z_message_len-save]='\0';
495    return(out);
496  }
497
498  return(owl_strdup(""));
499}
500
501char *owl_zephyr_get_field_as_utf8(ZNotice_t *n, int j)
502{
503  int i, count, save;
504
505  /* If there's no message here, just run along now */
506  if (n->z_message_len == 0)
507    return(owl_strdup(""));
508
509  count=save=0;
510  for (i = 0; i < n->z_message_len; i++) {
511    if (n->z_message[i]=='\0') {
512      count++;
513      if (count == j) {
514        /* just found the end of the field we're looking for */
515        return(owl_validate_or_convert(n->z_message + save));
516      } else {
517        save = i + 1;
518      }
519    }
520  }
521  /* catch the last field, which might not be null terminated */
522  if (count == j - 1) {
523    char *tmp, *out;
524    tmp = owl_malloc(n->z_message_len-save+5);
525    memcpy(tmp, n->z_message+save, n->z_message_len-save);
526    tmp[n->z_message_len-save]='\0';
527    out = owl_validate_or_convert(tmp);
528    owl_free(tmp);
529    return out;
530  }
531
532  return(owl_strdup(""));
533}
534#else
535char *owl_zephyr_get_field(void *n, int j)
536{
537  return(owl_strdup(""));
538}
539char *owl_zephyr_get_field_as_utf8(void *n, int j)
540{
541  return owl_zephyr_get_field(n, j);
542}
543#endif
544
545
546#ifdef HAVE_LIBZEPHYR
547int owl_zephyr_get_num_fields(ZNotice_t *n)
548{
549  int i, fields;
550
551  if(n->z_message_len == 0)
552    return 0;
553
554  fields=1;
555  for (i=0; i<n->z_message_len; i++) {
556    if (n->z_message[i]=='\0') fields++;
557  }
558 
559  return(fields);
560}
561#else
562int owl_zephyr_get_num_fields(void *n)
563{
564  return(0);
565}
566#endif
567
568#ifdef HAVE_LIBZEPHYR
569/* return a pointer to the message, place the message length in k
570 * caller must free the return
571 */
572char *owl_zephyr_get_message(ZNotice_t *n, owl_message *m)
573{
574  /* don't let ping messages have a body */
575  if (!strcasecmp(n->z_opcode, "ping")) {
576    return(owl_strdup(""));
577  }
578
579  /* deal with MIT NOC messages */
580  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")) {
581    char *msg, *field3, *field4;
582
583    field3 = owl_zephyr_get_field(n, 3);
584    field4 = owl_zephyr_get_field(n, 4);
585
586    msg = owl_sprintf("%s service on %s %s\n%s", n->z_opcode, n->z_class_inst, field3, field4);
587    owl_free(field3);
588    owl_free(field4);
589    if (msg) {
590      return msg;
591    }
592  }
593  /* deal with MIT Discuss messages */
594  else if (!strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3 ($5)\nSubject: $4") ||
595           !strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3\nSubject: $4")) {
596    char *msg, *field1, *field2, *field3, *field4, *field5;
597   
598    field1 = owl_zephyr_get_field(n, 1);
599    field2 = owl_zephyr_get_field(n, 2);
600    field3 = owl_zephyr_get_field(n, 3);
601    field4 = owl_zephyr_get_field(n, 4);
602    field5 = owl_zephyr_get_field(n, 5);
603   
604    msg = owl_sprintf("New transaction [%s] entered in %s\nFrom: %s (%s)\nSubject: %s", field1, field2, field3, field5, field4);
605    owl_free(field1);
606    owl_free(field2);
607    owl_free(field3);
608    owl_free(field4);
609    owl_free(field5);
610    if (msg) {
611      return msg;
612    }
613  }
614  /* deal with MIT Moira messages */
615  else if (!strcasecmp(n->z_default_format, "MOIRA $instance on $fromhost:\n $message\n")) {
616    char *msg, *field1;
617   
618    field1 = owl_zephyr_get_field(n, 1);
619   
620    msg = owl_sprintf("MOIRA %s on %s: %s", n->z_class_inst, owl_message_get_hostname(m), field1);
621    owl_free(field1);
622    if (msg) {
623      return msg;
624    }
625  }
626
627  if (owl_zephyr_get_num_fields(n) == 1) {
628    return(owl_zephyr_get_field(n, 1));
629  }
630  else {
631    return(owl_zephyr_get_field(n, 2));
632  }
633}
634#endif
635
636#ifdef HAVE_LIBZEPHYR
637char *owl_zephyr_get_zsig(ZNotice_t *n, int *k)
638{
639  /* return a pointer to the zsig if there is one */
640
641  /* message length 0? No zsig */
642  if (n->z_message_len==0) {
643    *k=0;
644    return("");
645  }
646
647  /* If there's only one field, no zsig */
648  if (owl_zephyr_get_num_fields(n) == 1) {
649    *k=0;
650    return("");
651  }
652
653  /* Everything else is field 1 */
654  *k=strlen(n->z_message);
655  return(n->z_message);
656}
657#else
658char *owl_zephyr_get_zsig(void *n, int *k)
659{
660  return("");
661}
662#endif
663
664int send_zephyr(char *opcode, char *zsig, char *class, char *instance, char *recipient, char *message)
665{
666#ifdef HAVE_LIBZEPHYR
667  int ret;
668  ZNotice_t notice;
669   
670  memset(&notice, 0, sizeof(notice));
671
672  ZResetAuthentication();
673
674  if (!zsig) zsig="";
675 
676  notice.z_kind=ACKED;
677  notice.z_port=0;
678  notice.z_class=zstr(class);
679  notice.z_class_inst=zstr(instance);
680  notice.z_sender=NULL;
681  if (!strcmp(recipient, "*") || !strcmp(recipient, "@")) {
682    notice.z_recipient=zstr("");
683    if (*owl_global_get_zsender(&g))
684        notice.z_sender=zstr(owl_global_get_zsender(&g));
685  } else {
686    notice.z_recipient=zstr(recipient);
687  }
688  notice.z_default_format=zstr("Class $class, Instance $instance:\nTo: @bold($recipient) at $time $date\nFrom: @bold{$1 <$sender>}\n\n$2");
689  if (opcode) notice.z_opcode=zstr(opcode);
690
691  notice.z_message_len=strlen(zsig)+1+strlen(message);
692  notice.z_message=owl_malloc(notice.z_message_len+10);
693  strcpy(notice.z_message, zsig);
694  memcpy(notice.z_message+strlen(zsig)+1, message, strlen(message));
695
696  /* ret=ZSendNotice(&notice, ZAUTH); */
697  ret=ZSrvSendNotice(&notice, ZAUTH, send_zephyr_helper);
698 
699  /* free then check the return */
700  owl_free(notice.z_message);
701  ZFreeNotice(&notice);
702  if (ret!=ZERR_NONE) {
703    owl_function_error("Error sending zephyr");
704    return(ret);
705  }
706  return(0);
707#else
708  return(0);
709#endif
710}
711
712#ifdef HAVE_LIBZEPHYR
713Code_t send_zephyr_helper(ZNotice_t *notice, char *buf, int len, int wait)
714{
715  return(ZSendPacket(buf, len, 0));
716}
717#endif
718
719void send_ping(char *to, char *zclass, char *zinstance)
720{
721#ifdef HAVE_LIBZEPHYR
722  send_zephyr("PING", "", zclass, zinstance, to, "");
723#endif
724}
725
726#ifdef HAVE_LIBZEPHYR
727void owl_zephyr_handle_ack(ZNotice_t *retnotice)
728{
729  char *tmp;
730 
731  /* if it's an HMACK ignore it */
732  if (retnotice->z_kind == HMACK) return;
733
734  if (retnotice->z_kind == SERVNAK) {
735    owl_function_error("Authorization failure sending zephyr");
736  } else if ((retnotice->z_kind != SERVACK) || !retnotice->z_message_len) {
737    owl_function_error("Detected server failure while receiving acknowledgement");
738  } else if (!strcmp(retnotice->z_message, ZSRVACK_SENT)) {
739    if (!strcasecmp(retnotice->z_opcode, "ping")) {
740      return;
741    } else {
742      if (strcasecmp(retnotice->z_recipient, ""))
743      { /* personal */
744        tmp=short_zuser(retnotice->z_recipient);
745        if(!strcasecmp(retnotice->z_class, "message") &&
746           !strcasecmp(retnotice->z_class_inst, "personal")) {
747          owl_function_makemsg("Message sent to %s.", tmp);
748        } else if(!strcasecmp(retnotice->z_class, "message")) { /* instanced, but not classed, personal */
749          owl_function_makemsg("Message sent to %s on -i %s\n", tmp, retnotice->z_class_inst);
750        } else { /* classed personal */
751          owl_function_makemsg("Message sent to %s on -c %s -i %s\n", tmp, retnotice->z_class, retnotice->z_class_inst);
752        }
753        free(tmp);
754      } else {
755        /* class / instance message */
756          owl_function_makemsg("Message sent to -c %s -i %s\n", retnotice->z_class, retnotice->z_class_inst);
757      }
758    }
759  } else if (!strcmp(retnotice->z_message, ZSRVACK_NOTSENT)) {
760    #define BUFFLEN 1024
761    if (retnotice->z_recipient == NULL
762        || *retnotice->z_recipient == 0
763        || *retnotice->z_recipient == '@') {
764      char buff[BUFFLEN];
765      owl_function_error("No one subscribed to class %s", retnotice->z_class);
766      snprintf(buff, BUFFLEN, "Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
767      owl_function_adminmsg("", buff);
768    } else {
769      char buff[BUFFLEN];
770      tmp = short_zuser(retnotice->z_recipient);
771      owl_function_error("%s: Not logged in or subscribing.", tmp);
772      /*
773       * These error messages are often over 80 chars, but users who want to
774       * see the whole thing can scroll to the side, and for those with wide
775       * terminals or who don't care, not splitting saves a line in the UI
776       */
777      if(strcasecmp(retnotice->z_class, "message")) {
778        snprintf(buff, BUFFLEN,
779                 "Could not send message to %s: "
780                 "not logged in or subscribing to class %s, instance %s.\n",
781                 tmp,
782                 retnotice->z_class,
783                 retnotice->z_class_inst);
784      } else if(strcasecmp(retnotice->z_class_inst, "personal")) {
785        snprintf(buff, BUFFLEN,
786                 "Could not send message to %s: "
787                 "not logged in or subscribing to instance %s.\n",
788                 tmp,
789                 retnotice->z_class_inst);
790      } else {
791        snprintf(buff, BUFFLEN,
792                 "Could not send message to %s: "
793                 "not logged in or subscribing to messages.\n",
794                 tmp);
795      }
796      owl_function_adminmsg("", buff);
797      owl_log_outgoing_zephyr_error(tmp, buff);
798      owl_free(tmp);
799    }
800  } else {
801    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
802  }
803}
804#else
805void owl_zephyr_handle_ack(void *retnotice)
806{
807}
808#endif
809
810#ifdef HAVE_LIBZEPHYR
811int owl_zephyr_notice_is_ack(ZNotice_t *n)
812{
813  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
814    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
815    return(1);
816  }
817  return(0);
818}
819#else
820int owl_zephyr_notice_is_ack(void *n)
821{
822  return(0);
823}
824#endif
825 
826void owl_zephyr_zaway(owl_message *m)
827{
828#ifdef HAVE_LIBZEPHYR
829  char *tmpbuff, *myuser, *to;
830  owl_message *mout;
831 
832  /* bail if it doesn't look like a message we should reply to.  Some
833   * of this defined by the way zaway(1) works
834   */
835  if (strcasecmp(owl_message_get_class(m), "message")) return;
836  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
837  if (!strcasecmp(owl_message_get_sender(m), "")) return;
838  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
839  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
840  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
841  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
842  if (owl_message_get_attribute_value(m, "isauto")) return;
843
844  if (owl_global_is_smartstrip(&g)) {
845    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
846  } else {
847    to=owl_strdup(owl_message_get_sender(m));
848  }
849
850  send_zephyr("",
851              "Automated reply:",
852              owl_message_get_class(m),
853              owl_message_get_instance(m),
854              to,
855              owl_global_get_zaway_msg(&g));
856
857  myuser=short_zuser(to);
858  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
859    tmpbuff = owl_sprintf("zwrite %s", myuser);
860  } else {
861    tmpbuff = owl_sprintf("zwrite -i %s %s", owl_message_get_instance(m), myuser);
862  }
863  owl_free(myuser);
864  owl_free(to);
865
866  /* display the message as an admin message in the receive window */
867  mout=owl_function_make_outgoing_zephyr(owl_global_get_zaway_msg(&g), tmpbuff, "Automated reply:");
868  owl_global_messagequeue_addmsg(&g, mout);
869  owl_free(tmpbuff);
870#endif
871}
872
873#ifdef HAVE_LIBZEPHYR
874void owl_zephyr_hackaway_cr(ZNotice_t *n)
875{
876  /* replace \r's with ' '.  Gross-ish */
877  int i;
878
879  for (i=0; i<n->z_message_len; i++) {
880    if (n->z_message[i]=='\r') {
881      n->z_message[i]=' ';
882    }
883  }
884}
885#endif
886
887void owl_zephyr_zlocate(char *user, char *out, int auth)
888{
889#ifdef HAVE_LIBZEPHYR
890  int ret, numlocs;
891  int one = 1;
892  ZLocations_t locations;
893  char *myuser;
894 
895  strcpy(out, "");
896  ZResetAuthentication();
897  ret=ZLocateUser(zstr(user),&numlocs,auth?ZAUTH:ZNOAUTH);
898  if (ret != ZERR_NONE) {
899    sprintf(out, "Error locating user %s\n", user);
900    return;
901  }
902
903  if (numlocs==0) {
904    myuser=short_zuser(user);
905    sprintf(out, "%s: Hidden or not logged in\n", myuser);
906    owl_free(myuser);
907    return;
908  }
909   
910  for (;numlocs;numlocs--) {
911    ZGetLocations(&locations,&one);
912    myuser=short_zuser(user);
913    sprintf(out + strlen(out), "%s: %s\t%s\t%s\n", myuser,
914            locations.host ? locations.host : "?",
915            locations.tty ? locations.tty : "?",
916            locations.time ? locations.time : "?");
917    owl_free(myuser);
918  }
919#endif
920}
921
922void owl_zephyr_addsub(char *filename, char *class, char *inst, char *recip)
923{
924#ifdef HAVE_LIBZEPHYR
925  char *line, subsfile[LINE], buff[LINE];
926  FILE *file;
927
928  line=owl_zephyr_makesubline(class, inst, recip);
929
930  if (filename==NULL) {
931    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
932  } else {
933    strcpy(subsfile, filename);
934  }
935
936  /* if the file already exists, check to see if the sub is already there */
937  file=fopen(subsfile, "r");
938  if (file) {
939    while (fgets(buff, LINE, file)!=NULL) {
940      if (!strcasecmp(buff, line)) {
941        owl_function_error("Subscription already present in %s", subsfile);
942        owl_free(line);
943        fclose(file);
944        return;
945      }
946    }
947    fclose(file);
948  }
949
950  /* if we get here then we didn't find it */
951  file=fopen(subsfile, "a");
952  if (!file) {
953    owl_function_error("Error opening file %s for writing", subsfile);
954    owl_free(line);
955    return;
956  }
957  fputs(line, file);
958  fclose(file);
959  owl_function_makemsg("Subscription added");
960 
961  owl_free(line);
962#endif
963}
964
965void owl_zephyr_delsub(char *filename, char *class, char *inst, char *recip)
966{
967#ifdef HAVE_LIBZEPHYR
968  char *line, *subsfile;
969 
970  line=owl_zephyr_makesubline(class, inst, recip);
971  line[strlen(line)-1]='\0';
972
973  if (!filename) {
974    subsfile=owl_sprintf("%s/.zephyr.subs", owl_global_get_homedir(&g));
975  } else {
976    subsfile=owl_strdup(filename);
977  }
978 
979  owl_util_file_deleteline(subsfile, line, 1);
980  owl_free(subsfile);
981  owl_free(line);
982  owl_function_makemsg("Subscription removed");
983#endif
984}
985
986/* caller must free the return */
987char *owl_zephyr_makesubline(char *class, char *inst, char *recip)
988{
989  char *out;
990
991  out=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+30);
992  sprintf(out, "%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
993  return(out);
994}
995
996
997void owl_zephyr_zlog_in(void)
998{
999#ifdef HAVE_LIBZEPHYR
1000  char *exposure, *eset;
1001  int ret;
1002
1003  ZResetAuthentication();
1004   
1005  eset=EXPOSE_REALMVIS;
1006  exposure=ZGetVariable(zstr("exposure"));
1007  if (exposure==NULL) {
1008    eset=EXPOSE_REALMVIS;
1009  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
1010    eset = EXPOSE_NONE;
1011  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
1012    eset = EXPOSE_OPSTAFF;
1013  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
1014    eset = EXPOSE_REALMVIS;
1015  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
1016    eset = EXPOSE_REALMANN;
1017  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
1018    eset = EXPOSE_NETVIS;
1019  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
1020    eset = EXPOSE_NETANN;
1021  }
1022   
1023  ret=ZSetLocation(zstr(eset));
1024  if (ret != ZERR_NONE) {
1025    /*
1026      char buff[LINE];
1027      sprintf(buff, "Error setting location: %s", error_message(ret));
1028      owl_function_makemsg(buff);
1029    */
1030  }
1031#endif
1032}
1033
1034void owl_zephyr_zlog_out(void)
1035{
1036#ifdef HAVE_LIBZEPHYR
1037  int ret;
1038
1039  ZResetAuthentication();
1040  ret=ZUnsetLocation();
1041  if (ret != ZERR_NONE) {
1042    /*
1043      char buff[LINE];
1044      sprintf(buff, "Error unsetting location: %s", error_message(ret));
1045      owl_function_makemsg(buff);
1046    */
1047  }
1048#endif
1049}
1050
1051void owl_zephyr_addbuddy(char *name)
1052{
1053  char *filename;
1054  FILE *file;
1055 
1056  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
1057  file=fopen(filename, "a");
1058  owl_free(filename);
1059  if (!file) {
1060    owl_function_error("Error opening zephyr buddy file for append");
1061    return;
1062  }
1063  fprintf(file, "%s\n", name);
1064  fclose(file);
1065}
1066
1067void owl_zephyr_delbuddy(char *name)
1068{
1069  char *filename;
1070
1071  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
1072  owl_util_file_deleteline(filename, name, 0);
1073  owl_free(filename);
1074}
1075
1076/* return auth string */
1077#ifdef HAVE_LIBZEPHYR
1078char *owl_zephyr_get_authstr(ZNotice_t *n)
1079{
1080
1081  if (!n) return("UNKNOWN");
1082
1083  if (n->z_auth == ZAUTH_FAILED) {
1084    return ("FAILED");
1085  } else if (n->z_auth == ZAUTH_NO) {
1086    return ("NO");
1087  } else if (n->z_auth == ZAUTH_YES) {
1088    return ("YES");
1089  } else {
1090    return ("UNKNOWN");
1091  }           
1092}
1093#else
1094char *owl_zephyr_get_authstr(void *n)
1095{
1096  return("");
1097}
1098#endif
1099
1100/* Returns a buffer of subscriptions or an error message.  Caller must
1101 * free the return.
1102 */
1103char *owl_zephyr_getsubs()
1104{
1105#ifdef HAVE_LIBZEPHYR
1106  int ret, num, i, one;
1107  int buffsize;
1108  ZSubscription_t sub;
1109  char *out;
1110  one=1;
1111
1112  ret=ZRetrieveSubscriptions(0, &num);
1113  if (ret==ZERR_TOOMANYSUBS) {
1114    return(owl_strdup("Zephyr: too many subscriptions\n"));
1115  } else if (ret || (num <= 0)) {
1116    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
1117  }
1118
1119  buffsize = (num + 1) * 50;
1120  out=owl_malloc(buffsize);
1121  strcpy(out, "");
1122  for (i=0; i<num; i++) {
1123    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
1124      owl_free(out);
1125      ZFlushSubscriptions();
1126      out=owl_strdup("Error while getting subscriptions\n");
1127      return(out);
1128    } else {
1129      int tmpbufflen;
1130      char *tmpbuff;
1131      tmpbuff = owl_sprintf("<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
1132      tmpbufflen = strlen(tmpbuff) + 1;
1133      if (tmpbufflen > buffsize) {
1134        char *out2;
1135        buffsize = tmpbufflen * 2;
1136        out2 = owl_realloc(out, buffsize);
1137        if (out2 == NULL) {
1138          owl_free(out);
1139          owl_free(tmpbuff);
1140          ZFlushSubscriptions();
1141          out=owl_strdup("Realloc error while getting subscriptions\n");
1142          return(out);   
1143        }
1144        out = out2;
1145      }
1146      strcpy(out, tmpbuff);
1147      owl_free(tmpbuff);
1148    }
1149  }
1150
1151  ZFlushSubscriptions();
1152  return(out);
1153#else
1154  return(owl_strdup("Zephyr not available"));
1155#endif
1156}
1157
1158char *owl_zephyr_get_variable(char *var)
1159{
1160#ifdef HAVE_LIBZEPHYR
1161  return(ZGetVariable(zstr(var)));
1162#else
1163  return("");
1164#endif
1165}
1166
1167void owl_zephyr_set_locationinfo(char *host, char *val)
1168{
1169#ifdef HAVE_LIBZEPHYR
1170  ZInitLocationInfo(zstr(host), zstr(val));
1171#endif
1172}
1173 
1174/* Strip a local realm fron the zephyr user name.
1175 * The caller must free the return
1176 */
1177char *short_zuser(char *in)
1178{
1179  char *out, *ptr;
1180
1181  out=owl_strdup(in);
1182  ptr=strchr(out, '@');
1183  if (ptr) {
1184    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
1185      *ptr='\0';
1186    }
1187  }
1188  return(out);
1189}
1190
1191/* Append a local realm to the zephyr user name if necessary.
1192 * The caller must free the return.
1193 */
1194char *long_zuser(char *in)
1195{
1196  if (strchr(in, '@')) {
1197    return(owl_strdup(in));
1198  }
1199  return(owl_sprintf("%s@%s", in, owl_zephyr_get_realm()));
1200}
1201
1202/* strip out the instance from a zsender's principal.  Preserves the
1203 * realm if present.  daemon.webzephyr is a special case.  The
1204 * caller must free the return
1205 */
1206char *owl_zephyr_smartstripped_user(char *in)
1207{
1208  char *ptr, *realm, *out;
1209
1210  out=owl_strdup(in);
1211
1212  /* bail immeaditly if we don't have to do any work */
1213  ptr=strchr(out, '.');
1214  if (!strchr(out, '/') && !ptr) {
1215    /* no '/' and no '.' */
1216    return(out);
1217  }
1218  if (ptr && strchr(out, '@') && (ptr > strchr(out, '@'))) {
1219    /* There's a '.' but it's in the realm */
1220    return(out);
1221  }
1222  if (!strncasecmp(out, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
1223    return(out);
1224  }
1225
1226  /* remove the realm from out, but hold on to it */
1227  realm=strchr(out, '@');
1228  if (realm) realm[0]='\0';
1229
1230  /* strip */
1231  ptr=strchr(out, '.');
1232  if (!ptr) ptr=strchr(out, '/');
1233  ptr[0]='\0';
1234
1235  /* reattach the realm if we had one */
1236  if (realm) {
1237    strcat(out, "@");
1238    strcat(out, realm+1);
1239  }
1240
1241  return(out);
1242}
1243
1244/* read the list of users in 'filename' as a .anyone file, and put the
1245 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
1246 * use the default .anyone file in the users home directory.  Returns
1247 * -1 on failure, 0 on success.
1248 */
1249int owl_zephyr_get_anyone_list(owl_list *in, char *filename)
1250{
1251#ifdef HAVE_LIBZEPHYR
1252  char *ourfile, *tmp, buff[LINE];
1253  FILE *f;
1254
1255  if (filename==NULL) {
1256    ourfile=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
1257  } else {
1258    ourfile=owl_strdup(filename);
1259  }
1260 
1261  f=fopen(ourfile, "r");
1262  if (!f) {
1263    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
1264    owl_free(ourfile);
1265    return(-1);
1266  }
1267
1268  while (fgets(buff, LINE, f)!=NULL) {
1269    /* ignore comments, blank lines etc. */
1270    if (buff[0]=='#') continue;
1271    if (buff[0]=='\n') continue;
1272    if (buff[0]=='\0') continue;
1273   
1274    /* strip the \n */
1275    buff[strlen(buff)-1]='\0';
1276   
1277    /* ingore from # on */
1278    tmp=strchr(buff, '#');
1279    if (tmp) tmp[0]='\0';
1280   
1281    /* ingore from SPC */
1282    tmp=strchr(buff, ' ');
1283    if (tmp) tmp[0]='\0';
1284   
1285    /* stick on the local realm. */
1286    if (!strchr(buff, '@')) {
1287      strcat(buff, "@");
1288      strcat(buff, ZGetRealm());
1289    }
1290    owl_list_append_element(in, owl_strdup(buff));
1291  }
1292  fclose(f);
1293  owl_free(ourfile);
1294  return(0);
1295#else
1296  return(-1);
1297#endif
1298}
1299
1300#ifdef HAVE_LIBZEPHYR
1301void owl_zephyr_process_events(owl_dispatch *d) {
1302  int zpendcount=0;
1303  ZNotice_t notice;
1304  struct sockaddr_in from;
1305  owl_message *m=NULL;
1306
1307  while(owl_zephyr_zpending() && zpendcount < 20) {
1308    if (owl_zephyr_zpending()) {
1309      ZReceiveNotice(&notice, &from);
1310      zpendcount++;
1311
1312      /* is this an ack from a zephyr we sent? */
1313      if (owl_zephyr_notice_is_ack(&notice)) {
1314        owl_zephyr_handle_ack(&notice);
1315        continue;
1316      }
1317
1318      /* if it's a ping and we're not viewing pings then skip it */
1319      if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
1320        continue;
1321      }
1322
1323      /* create the new message */
1324      m=owl_malloc(sizeof(owl_message));
1325      owl_message_create_from_znotice(m, &notice);
1326
1327      owl_global_messagequeue_addmsg(&g, m);
1328    }
1329  }
1330}
1331
1332#else
1333void owl_zephyr_process_events(owl_dispatch *d) {
1334 
1335}
1336#endif
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