source: zephyr.c @ 4357be8

barnowl_perlaimdebianowlrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 4357be8 was 4357be8, checked in by James M. Kretchmar <kretch@mit.edu>, 17 years ago
Don't print an error about loading subs if there is no .zephyr.subs Do the initial zephyr_buddy_check when pseduologin set to true.
  • Property mode set to 100644
File size: 21.3 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
9static const char fileIdent[] = "$Id$";
10
11#ifdef HAVE_LIBZEPHYR
12Code_t ZResetAuthentication();
13#endif
14
15int owl_zephyr_initialize()
16{
17#ifdef HAVE_LIBZEPHYR
18  int ret;
19 
20  if ((ret = ZInitialize()) != ZERR_NONE) {
21    com_err("owl",ret,"while initializing");
22    return(1);
23  }
24  if ((ret = ZOpenPort(NULL)) != ZERR_NONE) {
25    com_err("owl",ret,"while opening port");
26    return(1);
27  }
28#endif
29  return(0);
30}
31
32
33int owl_zephyr_shutdown()
34{
35#ifdef HAVE_LIBZEPHYR
36  unsuball();
37  ZClosePort();
38#endif
39  return(0);
40}
41
42int owl_zephyr_zpending()
43{
44#ifdef HAVE_LIBZEPHYR
45  return(ZPending());
46#else
47  return(0);
48#endif
49}
50
51char *owl_zephyr_get_realm()
52{
53#ifdef HAVE_LIBZEPHYR
54  return(ZGetRealm());
55#else
56  return("");
57#endif
58}
59
60char *owl_zephyr_get_sender()
61{
62#ifdef HAVE_LIBZEPHYR
63  return(ZGetSender());
64#else
65  return("");
66#endif
67}
68
69/* return 0  on success
70 *        -1 on file error
71 *        -2 on subscription error
72 */
73int owl_zephyr_loadsubs(char *filename)
74{
75#ifdef HAVE_LIBZEPHYR
76  FILE *file;
77  char *tmp, *start;
78  char buffer[1024], subsfile[1024];
79  ZSubscription_t subs[3001];
80  int count, ret, i;
81  struct stat statbuff;
82
83  if (filename==NULL) {
84    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
85  } else {
86    strcpy(subsfile, filename);
87  }
88
89  ret=stat(subsfile, &statbuff);
90  if (ret) return(0);
91
92  ret=0;
93
94  ZResetAuthentication();
95  /* need to redo this to do chunks, not just bail after 3000 */
96  count=0;
97  file=fopen(subsfile, "r");
98  if (file) {
99    while ( fgets(buffer, 1024, file)!=NULL ) {
100      if (buffer[0]=='#' || buffer[0]=='\n' || buffer[0]=='\n') continue;
101
102      if (buffer[0]=='-') {
103        start=buffer+1;
104      } else {
105        start=buffer;
106      }
107     
108      if (count >= 3000) break; /* also tell the user */
109
110      /* add it to the list of subs */
111      if ((tmp=(char *) strtok(start, ",\n\r"))==NULL) continue;
112      subs[count].zsub_class=owl_strdup(tmp);
113      if ((tmp=(char *) strtok(NULL, ",\n\r"))==NULL) continue;
114      subs[count].zsub_classinst=owl_strdup(tmp);
115      if ((tmp=(char *) strtok(NULL, " \t\n\r"))==NULL) continue;
116      subs[count].zsub_recipient=owl_strdup(tmp);
117
118      /* if it started with '-' then add it to the global punt list */
119      if (buffer[0]=='-') {
120        owl_function_zpunt(subs[count].zsub_class, subs[count].zsub_classinst, subs[count].zsub_recipient, 0);
121      }
122     
123      count++;
124    }
125    fclose(file);
126  } else {
127    count=0;
128    ret=-1;
129  }
130
131  /* sub without defaults */
132  if (ZSubscribeToSansDefaults(subs,count,0) != ZERR_NONE) {
133    owl_function_error("Error subscribing to zephyr notifications.");
134    ret=-2;
135  }
136
137  /* free stuff */
138  for (i=0; i<count; i++) {
139    owl_free(subs[i].zsub_class);
140    owl_free(subs[i].zsub_classinst);
141    owl_free(subs[i].zsub_recipient);
142  }
143
144  return(ret);
145#else
146  return(0);
147#endif
148}
149
150int owl_zephyr_loaddefaultsubs()
151{
152  ZSubscription_t subs[10];
153   
154  if (ZSubscribeTo(subs,0,0) != ZERR_NONE) {
155    owl_function_error("Error subscribing to default zephyr notifications.");
156    return(-1);
157  }
158  return(0);
159}
160
161int owl_zephyr_loadloginsubs(char *filename)
162{
163#ifdef HAVE_LIBZEPHYR
164  FILE *file;
165  ZSubscription_t subs[3001];
166  char subsfile[1024], buffer[1024];
167  int count, ret, i;
168  struct stat statbuff;
169
170  if (filename==NULL) {
171    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".anyone");
172  } else {
173    strcpy(subsfile, filename);
174  }
175 
176  ret=stat(subsfile, &statbuff);
177  if (ret) return(0);
178
179  ret=0;
180
181  ZResetAuthentication();
182  /* need to redo this to do chunks, not just bag out after 3000 */
183  count=0;
184  file=fopen(subsfile, "r");
185  if (file) {
186    while ( fgets(buffer, 1024, file)!=NULL ) {
187      if (buffer[0]=='#' || buffer[0]=='\n' || buffer[0]=='\n') continue;
188     
189      if (count >= 3000) break; /* also tell the user */
190
191      buffer[strlen(buffer)-1]='\0';
192      subs[count].zsub_class="login";
193      subs[count].zsub_recipient="*";
194      if (strchr(buffer, '@')) {
195        subs[count].zsub_classinst=owl_strdup(buffer);
196      } else {
197        subs[count].zsub_classinst=owl_sprintf("%s@%s", buffer, ZGetRealm());
198      }
199
200      count++;
201    }
202    fclose(file);
203  } else {
204    count=0;
205    ret=-1;
206  }
207
208  /* sub with defaults */
209  if (ZSubscribeToSansDefaults(subs,count,0) != ZERR_NONE) {
210    owl_function_error("Error subscribing to zephyr notifications.");
211    ret=-2;
212  }
213
214  /* free stuff */
215  for (i=0; i<count; i++) {
216    owl_free(subs[i].zsub_classinst);
217  }
218
219  return(ret);
220#else
221  return(0);
222#endif
223}
224
225void unsuball()
226{
227#if HAVE_LIBZEPHYR
228  int ret;
229
230  ZResetAuthentication();
231  ret=ZCancelSubscriptions(0);
232  if (ret != ZERR_NONE) {
233    com_err("owl",ret,"while unsubscribing");
234  }
235#endif
236}
237
238int owl_zephyr_sub(char *class, char *inst, char *recip)
239{
240#ifdef HAVE_LIBZEPHYR
241  ZSubscription_t subs[5];
242
243  subs[0].zsub_class=class;
244  subs[0].zsub_classinst=inst;
245  subs[0].zsub_recipient=recip;
246
247  ZResetAuthentication();
248  if (ZSubscribeTo(subs,1,0) != ZERR_NONE) {
249    owl_function_error("Error subbing to <%s,%s,%s>", class, inst, recip);
250    return(-2);
251  }
252  return(0);
253#else
254  return(0);
255#endif
256}
257
258
259int owl_zephyr_unsub(char *class, char *inst, char *recip)
260{
261#ifdef HAVE_LIBZEPHYR
262  ZSubscription_t subs[5];
263
264  subs[0].zsub_class=class;
265  subs[0].zsub_classinst=inst;
266  subs[0].zsub_recipient=recip;
267
268  ZResetAuthentication();
269  if (ZUnsubscribeTo(subs,1,0) != ZERR_NONE) {
270    owl_function_error("Error unsubbing from <%s,%s,%s>", class, inst, recip);
271    return(-2);
272  }
273  return(0);
274#else
275  return(0);
276#endif
277}
278
279/* return a pointer to the data in the Jth field, (NULL terminated by
280 * definition).  Caller must free the return.
281 */
282#ifdef HAVE_LIBZEPHYR
283char *owl_zephyr_get_field(ZNotice_t *n, int j)
284{
285  int i, count, save;
286  char *out;
287
288  count=save=0;
289  for (i=0; i<n->z_message_len; i++) {
290    if (n->z_message[i]=='\0') {
291      count++;
292      if (count==j) {
293        /* just found the end of the field we're looking for */
294        return(owl_strdup(n->z_message+save));
295      } else {
296        save=i+1;
297      }
298    }
299  }
300  /* catch the last field, which might not be null terminated */
301  if (count==j-1) {
302    out=owl_malloc(n->z_message_len-save+5);
303    memcpy(out, n->z_message+save, n->z_message_len-save);
304    out[n->z_message_len-save]='\0';
305    return(out);
306  }
307
308  return(owl_strdup(""));
309}
310#else
311char *owl_zephyr_get_field(void *n, int j)
312{
313  return(owl_strdup(""));
314}
315#endif
316
317
318#ifdef HAVE_LIBZEPHYR
319int owl_zephyr_get_num_fields(ZNotice_t *n)
320{
321  int i, fields;
322
323  fields=1;
324  for (i=0; i<n->z_message_len; i++) {
325    if (n->z_message[i]=='\0') fields++;
326  }
327 
328  return(fields);
329}
330#else
331int owl_zephyr_get_num_fields(void *n)
332{
333  return(0);
334}
335#endif
336
337#ifdef HAVE_LIBZEPHYR
338/* return a pointer to the message, place the message length in k
339 * caller must free the return
340 */
341char *owl_zephyr_get_message(ZNotice_t *n)
342{
343  if (!strcasecmp(n->z_opcode, "ping")) {
344    return(owl_strdup(""));
345  }
346
347  return(owl_zephyr_get_field(n, 2));
348}
349#endif
350
351#ifdef HAVE_LIBZEPHYR
352char *owl_zephyr_get_zsig(ZNotice_t *n, int *k)
353{
354  /* return a pointer to the zsig if there is one */
355
356  if (n->z_message_len==0) {
357    *k=0;
358    return("");
359  }
360  *k=strlen(n->z_message);
361  return(n->z_message);
362}
363#else
364char *owl_zephyr_get_zsig(void *n, int *k)
365{
366  return("");
367}
368#endif
369
370int send_zephyr(char *opcode, char *zsig, char *class, char *instance, char *recipient, char *message)
371{
372#ifdef HAVE_LIBZEPHYR
373  int ret;
374  ZNotice_t notice;
375   
376  memset(&notice, 0, sizeof(notice));
377
378  ZResetAuthentication();
379 
380  notice.z_kind=ACKED;
381  notice.z_port=0;
382  notice.z_class=class;
383  notice.z_class_inst=instance;
384  if (!strcmp(recipient, "*") || !strcmp(recipient, "@")) {
385    notice.z_recipient="";
386  } else {
387    notice.z_recipient=recipient;
388  }
389  notice.z_default_format="Class $class, Instance $instance:\nTo: @bold($recipient) at $time $date\nFrom: @bold{$1 <$sender>}\n\n$2";
390  notice.z_sender=NULL;
391  if (opcode) notice.z_opcode=opcode;
392
393  notice.z_message_len=strlen(zsig)+1+strlen(message);
394  notice.z_message=owl_malloc(notice.z_message_len+10);
395  strcpy(notice.z_message, zsig);
396  memcpy(notice.z_message+strlen(zsig)+1, message, strlen(message));
397
398  /* ret=ZSendNotice(&notice, ZAUTH); */
399  ret=ZSrvSendNotice(&notice, ZAUTH, send_zephyr_helper);
400 
401  /* free then check the return */
402  owl_free(notice.z_message);
403  ZFreeNotice(&notice);
404  if (ret!=ZERR_NONE) {
405    owl_function_error("Error sending zephyr");
406    return(ret);
407  }
408  return(0);
409#else
410  return(0);
411#endif
412}
413
414#ifdef HAVE_LIBZEPHYR
415Code_t send_zephyr_helper(ZNotice_t *notice, char *buf, int len, int wait)
416{
417  return(ZSendPacket(buf, len, 0));
418}
419#endif
420
421void send_ping(char *to)
422{
423#ifdef HAVE_LIBZEPHYR
424  send_zephyr("PING", "", "MESSAGE", "PERSONAL", to, "");
425#endif
426}
427
428#ifdef HAVE_LIBZEPHYR
429void owl_zephyr_handle_ack(ZNotice_t *retnotice)
430{
431  char *tmp;
432 
433  /* if it's an HMACK ignore it */
434  if (retnotice->z_kind == HMACK) return;
435
436  if (retnotice->z_kind == SERVNAK) {
437    owl_function_error("Authorization failure sending zephyr");
438  } else if ((retnotice->z_kind != SERVACK) || !retnotice->z_message_len) {
439    owl_function_error("Detected server failure while receiving acknowledgement");
440  } else if (!strcmp(retnotice->z_message, ZSRVACK_SENT)) {
441    if (!strcasecmp(retnotice->z_opcode, "ping")) {
442      return;
443    } else if (!strcasecmp(retnotice->z_class, "message") &&
444               !strcasecmp(retnotice->z_class_inst, "personal")) {
445      tmp=short_zuser(retnotice->z_recipient);
446      owl_function_makemsg("Message sent to %s.", tmp);
447      free(tmp);
448    } else {
449      owl_function_makemsg("Message sent to -c %s -i %s\n", retnotice->z_class, retnotice->z_class_inst);
450    }
451  } else if (!strcmp(retnotice->z_message, ZSRVACK_NOTSENT)) {
452    if (strcasecmp(retnotice->z_class, "message")) {
453      char buff[1024];
454      owl_function_error("No one subscribed to class class %s", retnotice->z_class);
455      sprintf(buff, "Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
456      owl_function_adminmsg("", buff);
457    } else {
458      char buff[1024];
459      tmp = short_zuser(retnotice->z_recipient);
460      owl_function_error("%s: Not logged in or subscribing to messages.", 
461                           tmp);
462
463      sprintf(buff, "Could not send message to %s: not logged in or subscribing to messages.\n", tmp);
464      owl_function_adminmsg("", buff);
465      if (owl_global_is_logging(&g)) owl_log_outgoing_zephyr_error(tmp, buff);
466      owl_free(tmp);
467    }
468  } else {
469    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
470  }
471}
472#else
473void owl_zephyr_handle_ack(void *retnotice)
474{
475}
476#endif
477
478#ifdef HAVE_LIBZEPHYR
479int owl_zephyr_notice_is_ack(ZNotice_t *n)
480{
481  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
482    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
483    return(1);
484  }
485  return(0);
486}
487#else
488int owl_zephyr_notice_is_ack(void *n)
489{
490  return(0);
491}
492#endif
493 
494void owl_zephyr_zaway(owl_message *m)
495{
496#ifdef HAVE_LIBZEPHYR
497  char *tmpbuff, *myuser, *to;
498 
499  /* bail if it doesn't look like a message we should reply to.  Some
500   * of this defined by the way zaway(1) works
501   */
502  if (strcasecmp(owl_message_get_class(m), "message")) return;
503  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
504  if (!strcasecmp(owl_message_get_sender(m), "")) return;
505  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
506  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
507  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
508  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
509  if (owl_message_get_attribute_value(m, "isauto")) return;
510
511  if (owl_global_is_smartstrip(&g)) {
512    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
513  } else {
514    to=owl_strdup(owl_message_get_sender(m));
515  }
516
517  send_zephyr("",
518              "Automated reply:",
519              owl_message_get_class(m),
520              owl_message_get_instance(m),
521              to,
522              owl_global_get_zaway_msg(&g));
523
524  myuser=short_zuser(to);
525  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
526    tmpbuff = owl_sprintf("zwrite %s", myuser);
527  } else {
528    tmpbuff = owl_sprintf("zwrite -i %s %s", owl_message_get_instance(m), myuser);
529  }
530  owl_free(myuser);
531  owl_free(to);
532
533  /* display the message as an admin message in the receive window */
534  owl_function_make_outgoing_zephyr(owl_global_get_zaway_msg(&g), tmpbuff, "Automated reply:");
535  owl_free(tmpbuff);
536#endif
537}
538
539#ifdef HAVE_LIBZEPHYR
540void owl_zephyr_hackaway_cr(ZNotice_t *n)
541{
542  /* replace \r's with ' '.  Gross-ish */
543  int i;
544
545  for (i=0; i<n->z_message_len; i++) {
546    if (n->z_message[i]=='\r') {
547      n->z_message[i]=' ';
548    }
549  }
550}
551#endif
552
553void owl_zephyr_zlocate(char *user, char *out, int auth)
554{
555#ifdef HAVE_LIBZEPHYR
556  int ret, numlocs;
557  int one = 1;
558  ZLocations_t locations;
559  char *myuser;
560 
561  strcpy(out, "");
562  ZResetAuthentication();
563  ret=ZLocateUser(user,&numlocs,auth?ZAUTH:ZNOAUTH);
564  if (ret != ZERR_NONE) {
565    owl_function_error("Error locating user %s", user);
566  }
567
568  if (numlocs==0) {
569    myuser=short_zuser(user);
570    sprintf(out, "%s: Hidden or not logged-in\n", myuser);
571    owl_free(myuser);
572    return;
573  }
574   
575  for (;numlocs;numlocs--) {
576    ZGetLocations(&locations,&one);
577    myuser=short_zuser(user);
578    sprintf(out, "%s%s: %s\t%s\t%s\n", out, myuser, locations.host, locations.tty, locations.time);
579    owl_free(myuser);
580  }
581#endif
582}
583
584void owl_zephyr_addsub(char *filename, char *class, char *inst, char *recip)
585{
586#ifdef HAVE_LIBZEPHYR
587  char *line, subsfile[LINE], buff[LINE];
588  FILE *file;
589
590  line=owl_zephyr_makesubline(class, inst, recip);
591
592  if (filename==NULL) {
593    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
594  } else {
595    strcpy(subsfile, filename);
596  }
597
598  /* first check if it exists already */
599  file=fopen(subsfile, "r");
600  if (!file) {
601    owl_function_error("Error opening file %s", subsfile);
602    owl_free(line);
603    return;
604  }
605  while (fgets(buff, LINE, file)!=NULL) {
606    if (!strcasecmp(buff, line)) {
607      owl_function_error("Subscription already present in %s", subsfile);
608      owl_free(line);
609      return;
610    }
611  }
612
613  /* if we get here then we didn't find it */
614  fclose(file);
615  file=fopen(subsfile, "a");
616  if (!file) {
617    owl_function_error("Error opening file %s for writing", subsfile);
618    owl_free(line);
619    return;
620  }
621  fputs(line, file);
622  fclose(file);
623  owl_function_makemsg("Subscription added");
624 
625  owl_free(line);
626#endif
627}
628
629void owl_zephyr_delsub(char *filename, char *class, char *inst, char *recip)
630{
631#ifdef HAVE_LIBZEPHYR
632  char *line, *subsfile;
633 
634  line=owl_zephyr_makesubline(class, inst, recip);
635  line[strlen(line)-1]='\0';
636
637  if (!filename) {
638    subsfile=owl_sprintf("%s/.zephyr.subs", owl_global_get_homedir(&g));
639  } else {
640    subsfile=owl_strdup(filename);
641  }
642 
643  owl_util_file_deleteline(subsfile, line, 1);
644  owl_free(subsfile);
645  owl_free(line);
646  owl_function_makemsg("Subscription removed");
647#endif
648}
649
650/* caller must free the return */
651char *owl_zephyr_makesubline(char *class, char *inst, char *recip)
652{
653  char *out;
654
655  out=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+30);
656  sprintf(out, "%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
657  return(out);
658}
659
660
661void owl_zephyr_zlog_in(void)
662{
663#ifdef HAVE_LIBZEPHYR
664  char *exposure, *eset;
665  int ret;
666
667  ZResetAuthentication();
668   
669  eset=EXPOSE_REALMVIS;
670  exposure=ZGetVariable("exposure");
671  if (exposure==NULL) {
672    eset=EXPOSE_REALMVIS;
673  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
674    eset = EXPOSE_NONE;
675  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
676    eset = EXPOSE_OPSTAFF;
677  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
678    eset = EXPOSE_REALMVIS;
679  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
680    eset = EXPOSE_REALMANN;
681  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
682    eset = EXPOSE_NETVIS;
683  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
684    eset = EXPOSE_NETANN;
685  }
686   
687  ret=ZSetLocation(eset);
688  if (ret != ZERR_NONE) {
689    /*
690      char buff[LINE];
691      sprintf(buff, "Error setting location: %s", error_message(ret));
692      owl_function_makemsg(buff);
693    */
694  }
695#endif
696}
697
698void owl_zephyr_zlog_out(void)
699{
700#ifdef HAVE_LIBZEPHYR
701  int ret;
702
703  ZResetAuthentication();
704  ret=ZUnsetLocation();
705  if (ret != ZERR_NONE) {
706    /*
707      char buff[LINE];
708      sprintf(buff, "Error unsetting location: %s", error_message(ret));
709      owl_function_makemsg(buff);
710    */
711  }
712#endif
713}
714
715void owl_zephyr_addbuddy(char *name)
716{
717  char *filename;
718  FILE *file;
719 
720  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
721  file=fopen(filename, "a");
722  owl_free(filename);
723  if (!file) {
724    owl_function_error("Error opening zephyr buddy file for append");
725    return;
726  }
727  fprintf(file, "%s\n", name);
728  fclose(file);
729}
730
731void owl_zephyr_delbuddy(char *name)
732{
733  char *filename;
734
735  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
736  owl_util_file_deleteline(filename, name, 0);
737  owl_free(filename);
738}
739
740/* return auth string */
741#ifdef HAVE_LIBZEPHYR
742char *owl_zephyr_get_authstr(ZNotice_t *n)
743{
744
745  if (!n) return("UNKNOWN");
746
747  if (n->z_auth == ZAUTH_FAILED) {
748    return ("FAILED");
749  } else if (n->z_auth == ZAUTH_NO) {
750    return ("NO");
751  } else if (n->z_auth == ZAUTH_YES) {
752    return ("YES");
753  } else {
754    return ("UNKNOWN");
755  }           
756}
757#else
758char *owl_zephyr_get_authstr(void *n)
759{
760  return("");
761}
762#endif
763
764/* Returns a buffer of subscriptions or an error message.  Caller must
765 * free the return.
766 */
767char *owl_zephyr_getsubs()
768{
769#ifdef HAVE_LIBZEPHYR
770  int ret, num, i, one;
771  ZSubscription_t sub;
772  char *out, *tmpbuff;
773  one=1;
774
775  ret=ZRetrieveSubscriptions(0, &num);
776  if (ret==ZERR_TOOMANYSUBS) {
777    return(owl_strdup("Zephyr: too many subscriptions\n"));
778  } else if (ret) {
779    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
780  }
781
782  out=owl_malloc(num*500);
783  tmpbuff=owl_malloc(num*500);
784  strcpy(out, "");
785  for (i=0; i<num; i++) {
786    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
787      owl_free(out);
788      owl_free(tmpbuff);
789      ZFlushSubscriptions();
790      out=owl_strdup("Error while getting subscriptions\n");
791      return(out);
792    } else {
793      sprintf(tmpbuff, "<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
794      strcpy(out, tmpbuff);
795    }
796  }
797
798  owl_free(tmpbuff);
799  ZFlushSubscriptions();
800  return(out);
801#else
802  return(owl_strdup("Zephyr not available"));
803#endif
804}
805
806char *owl_zephyr_get_variable(char *var)
807{
808#ifdef HAVE_LIBZEPHYR
809  return(ZGetVariable(var));
810#else
811  return("");
812#endif
813}
814
815void owl_zephyr_set_locationinfo(char *host, char *val)
816{
817#ifdef HAVE_LIBZEPHYR
818  ZInitLocationInfo(host, val);
819#endif
820}
821 
822/* Strip a local realm fron the zephyr user name.
823 * The caller must free the return
824 */
825char *short_zuser(char *in)
826{
827  char *out, *ptr;
828
829  out=owl_strdup(in);
830  ptr=strchr(out, '@');
831  if (ptr) {
832    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
833      *ptr='\0';
834    }
835  }
836  return(out);
837}
838
839/* Append a local realm to the zephyr user name if necessary.
840 * The caller must free the return.
841 */
842char *long_zuser(char *in)
843{
844  char *ptr;
845
846  if (NULL != (ptr=strchr(in, '@'))) {
847    return owl_strdup(in);
848  } else {
849    return owl_sprintf("%s@%s", in, owl_zephyr_get_realm());
850  }
851}
852
853
854/* strip out the instance from a zsender's principal.  Preserves the
855 * realm if present.  daemon.webzephyr is a special case.  The
856 * caller must free the return
857 */
858char *owl_zephyr_smartstripped_user(char *in)
859{
860  char *ptr, *realm, *out;
861
862  out=owl_strdup(in);
863
864  /* bail immeaditly if we don't have to do any work */
865  ptr=strchr(in, '.');
866  if (!strchr(in, '/') && !ptr) {
867    /* no '/' and no '.' */
868    return(out);
869  }
870  if (ptr && strchr(in, '@') && (ptr > strchr(in, '@'))) {
871    /* There's a '.' but it's in the realm */
872    return(out);
873  }
874  if (!strncasecmp(in, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
875    return(out);
876  }
877
878  /* remove the realm from ptr, but hold on to it */
879  realm=strchr(out, '@');
880  if (realm) realm[0]='\0';
881
882  /* strip */
883  ptr=strchr(out, '.');
884  if (!ptr) ptr=strchr(out, '/');
885  ptr[0]='\0';
886
887  /* reattach the realm if we had one */
888  if (realm) {
889    strcat(out, "@");
890    strcat(out, realm+1);
891  }
892
893  return(out);
894}
895
896/* read the list of users in 'filename' as a .anyone file, and put the
897 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
898 * use the default .anyone file in the users home directory.  Returns
899 * -1 on failure, 0 on success.
900 */
901int owl_zephyr_get_anyone_list(owl_list *in, char *filename)
902{
903#ifdef HAVE_LIBZEPHYR
904  char *ourfile, *tmp, buff[LINE];
905  FILE *f;
906
907  if (filename==NULL) {
908    tmp=owl_global_get_homedir(&g);
909    ourfile=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
910  } else {
911    ourfile=owl_strdup(filename);
912  }
913 
914  f=fopen(ourfile, "r");
915  if (!f) {
916    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
917    owl_free(ourfile);
918    return(-1);
919  }
920
921  while (fgets(buff, LINE, f)!=NULL) {
922    /* ignore comments, blank lines etc. */
923    if (buff[0]=='#') continue;
924    if (buff[0]=='\n') continue;
925    if (buff[0]=='\0') continue;
926   
927    /* strip the \n */
928    buff[strlen(buff)-1]='\0';
929   
930    /* ingore from # on */
931    tmp=strchr(buff, '#');
932    if (tmp) tmp[0]='\0';
933   
934    /* ingore from SPC */
935    tmp=strchr(buff, ' ');
936    if (tmp) tmp[0]='\0';
937   
938    /* stick on the local realm. */
939    if (!strchr(buff, '@')) {
940      strcat(buff, "@");
941      strcat(buff, ZGetRealm());
942    }
943    owl_list_append_element(in, owl_strdup(buff));
944  }
945  fclose(f);
946  owl_free(ourfile);
947  return(0);
948#else
949  return(-1);
950#endif
951}
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