source: zephyr.c @ 667a1b6

barnowl_perlaimdebianowlrelease-1.10release-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 667a1b6 was 667a1b6, checked in by James M. Kretchmar <kretch@mit.edu>, 20 years ago
Don't crash doing zlocate with bad/no tickets [BZ 12]
  • Property mode set to 100644
File size: 21.7 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#ifdef HAVE_LIBZEPHYR
153  ZSubscription_t subs[10];
154   
155  if (ZSubscribeTo(subs,0,0) != ZERR_NONE) {
156    owl_function_error("Error subscribing to default zephyr notifications.");
157    return(-1);
158  }
159  return(0);
160#else
161  return(0);
162#endif
163}
164
165int owl_zephyr_loadloginsubs(char *filename)
166{
167#ifdef HAVE_LIBZEPHYR
168  FILE *file;
169  ZSubscription_t subs[3001];
170  char subsfile[1024], buffer[1024];
171  int count, ret, i;
172  struct stat statbuff;
173
174  if (filename==NULL) {
175    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".anyone");
176  } else {
177    strcpy(subsfile, filename);
178  }
179 
180  ret=stat(subsfile, &statbuff);
181  if (ret) return(0);
182
183  ret=0;
184
185  ZResetAuthentication();
186  /* need to redo this to do chunks, not just bag out after 3000 */
187  count=0;
188  file=fopen(subsfile, "r");
189  if (file) {
190    while ( fgets(buffer, 1024, file)!=NULL ) {
191      if (buffer[0]=='#' || buffer[0]=='\n' || buffer[0]=='\n') continue;
192     
193      if (count >= 3000) break; /* also tell the user */
194
195      buffer[strlen(buffer)-1]='\0';
196      subs[count].zsub_class="login";
197      subs[count].zsub_recipient="*";
198      if (strchr(buffer, '@')) {
199        subs[count].zsub_classinst=owl_strdup(buffer);
200      } else {
201        subs[count].zsub_classinst=owl_sprintf("%s@%s", buffer, ZGetRealm());
202      }
203
204      count++;
205    }
206    fclose(file);
207  } else {
208    count=0;
209    ret=-1;
210  }
211
212  /* sub with defaults */
213  if (ZSubscribeToSansDefaults(subs,count,0) != ZERR_NONE) {
214    owl_function_error("Error subscribing to zephyr notifications.");
215    ret=-2;
216  }
217
218  /* free stuff */
219  for (i=0; i<count; i++) {
220    owl_free(subs[i].zsub_classinst);
221  }
222
223  return(ret);
224#else
225  return(0);
226#endif
227}
228
229void unsuball()
230{
231#if HAVE_LIBZEPHYR
232  int ret;
233
234  ZResetAuthentication();
235  ret=ZCancelSubscriptions(0);
236  if (ret != ZERR_NONE) {
237    com_err("owl",ret,"while unsubscribing");
238  }
239#endif
240}
241
242int owl_zephyr_sub(char *class, char *inst, char *recip)
243{
244#ifdef HAVE_LIBZEPHYR
245  ZSubscription_t subs[5];
246
247  subs[0].zsub_class=class;
248  subs[0].zsub_classinst=inst;
249  subs[0].zsub_recipient=recip;
250
251  ZResetAuthentication();
252  if (ZSubscribeTo(subs,1,0) != ZERR_NONE) {
253    owl_function_error("Error subbing to <%s,%s,%s>", class, inst, recip);
254    return(-2);
255  }
256  return(0);
257#else
258  return(0);
259#endif
260}
261
262
263int owl_zephyr_unsub(char *class, char *inst, char *recip)
264{
265#ifdef HAVE_LIBZEPHYR
266  ZSubscription_t subs[5];
267
268  subs[0].zsub_class=class;
269  subs[0].zsub_classinst=inst;
270  subs[0].zsub_recipient=recip;
271
272  ZResetAuthentication();
273  if (ZUnsubscribeTo(subs,1,0) != ZERR_NONE) {
274    owl_function_error("Error unsubbing from <%s,%s,%s>", class, inst, recip);
275    return(-2);
276  }
277  return(0);
278#else
279  return(0);
280#endif
281}
282
283/* return a pointer to the data in the Jth field, (NULL terminated by
284 * definition).  Caller must free the return.
285 */
286#ifdef HAVE_LIBZEPHYR
287char *owl_zephyr_get_field(ZNotice_t *n, int j)
288{
289  int i, count, save;
290  char *out;
291
292  count=save=0;
293  for (i=0; i<n->z_message_len; i++) {
294    if (n->z_message[i]=='\0') {
295      count++;
296      if (count==j) {
297        /* just found the end of the field we're looking for */
298        return(owl_strdup(n->z_message+save));
299      } else {
300        save=i+1;
301      }
302    }
303  }
304  /* catch the last field, which might not be null terminated */
305  if (count==j-1) {
306    out=owl_malloc(n->z_message_len-save+5);
307    memcpy(out, n->z_message+save, n->z_message_len-save);
308    out[n->z_message_len-save]='\0';
309    return(out);
310  }
311
312  return(owl_strdup(""));
313}
314#else
315char *owl_zephyr_get_field(void *n, int j)
316{
317  return(owl_strdup(""));
318}
319#endif
320
321
322#ifdef HAVE_LIBZEPHYR
323int owl_zephyr_get_num_fields(ZNotice_t *n)
324{
325  int i, fields;
326
327  fields=1;
328  for (i=0; i<n->z_message_len; i++) {
329    if (n->z_message[i]=='\0') fields++;
330  }
331 
332  return(fields);
333}
334#else
335int owl_zephyr_get_num_fields(void *n)
336{
337  return(0);
338}
339#endif
340
341#ifdef HAVE_LIBZEPHYR
342/* return a pointer to the message, place the message length in k
343 * caller must free the return
344 */
345char *owl_zephyr_get_message(ZNotice_t *n)
346{
347  /* don't let ping messages have a body */
348  if (!strcasecmp(n->z_opcode, "ping")) {
349    return(owl_strdup(""));
350  }
351
352  /* deal with MIT Athena OLC messages */
353  if (!strcasecmp(n->z_sender, "olc.matisse@ATHENA.MIT.EDU")) {
354    return(owl_zephyr_get_field(n, 1));
355  }
356
357  return(owl_zephyr_get_field(n, 2));
358}
359#endif
360
361#ifdef HAVE_LIBZEPHYR
362char *owl_zephyr_get_zsig(ZNotice_t *n, int *k)
363{
364  /* return a pointer to the zsig if there is one */
365
366  /* message length 0? No zsig */
367  if (n->z_message_len==0) {
368    *k=0;
369    return("");
370  }
371
372  /* No zsig for OLC messages */
373  if (!strcasecmp(n->z_sender, "olc.matisse@ATHENA.MIT.EDU")) {
374    return("");
375  }
376
377  /* Everything else is field 1 */
378  *k=strlen(n->z_message);
379  return(n->z_message);
380}
381#else
382char *owl_zephyr_get_zsig(void *n, int *k)
383{
384  return("");
385}
386#endif
387
388int send_zephyr(char *opcode, char *zsig, char *class, char *instance, char *recipient, char *message)
389{
390#ifdef HAVE_LIBZEPHYR
391  int ret;
392  ZNotice_t notice;
393   
394  memset(&notice, 0, sizeof(notice));
395
396  ZResetAuthentication();
397
398  if (!zsig) zsig="";
399 
400  notice.z_kind=ACKED;
401  notice.z_port=0;
402  notice.z_class=class;
403  notice.z_class_inst=instance;
404  if (!strcmp(recipient, "*") || !strcmp(recipient, "@")) {
405    notice.z_recipient="";
406  } else {
407    notice.z_recipient=recipient;
408  }
409  notice.z_default_format="Class $class, Instance $instance:\nTo: @bold($recipient) at $time $date\nFrom: @bold{$1 <$sender>}\n\n$2";
410  notice.z_sender=NULL;
411  if (opcode) notice.z_opcode=opcode;
412
413  notice.z_message_len=strlen(zsig)+1+strlen(message);
414  notice.z_message=owl_malloc(notice.z_message_len+10);
415  strcpy(notice.z_message, zsig);
416  memcpy(notice.z_message+strlen(zsig)+1, message, strlen(message));
417
418  /* ret=ZSendNotice(&notice, ZAUTH); */
419  ret=ZSrvSendNotice(&notice, ZAUTH, send_zephyr_helper);
420 
421  /* free then check the return */
422  owl_free(notice.z_message);
423  ZFreeNotice(&notice);
424  if (ret!=ZERR_NONE) {
425    owl_function_error("Error sending zephyr");
426    return(ret);
427  }
428  return(0);
429#else
430  return(0);
431#endif
432}
433
434#ifdef HAVE_LIBZEPHYR
435Code_t send_zephyr_helper(ZNotice_t *notice, char *buf, int len, int wait)
436{
437  return(ZSendPacket(buf, len, 0));
438}
439#endif
440
441void send_ping(char *to)
442{
443#ifdef HAVE_LIBZEPHYR
444  send_zephyr("PING", "", "MESSAGE", "PERSONAL", to, "");
445#endif
446}
447
448#ifdef HAVE_LIBZEPHYR
449void owl_zephyr_handle_ack(ZNotice_t *retnotice)
450{
451  char *tmp;
452 
453  /* if it's an HMACK ignore it */
454  if (retnotice->z_kind == HMACK) return;
455
456  if (retnotice->z_kind == SERVNAK) {
457    owl_function_error("Authorization failure sending zephyr");
458  } else if ((retnotice->z_kind != SERVACK) || !retnotice->z_message_len) {
459    owl_function_error("Detected server failure while receiving acknowledgement");
460  } else if (!strcmp(retnotice->z_message, ZSRVACK_SENT)) {
461    if (!strcasecmp(retnotice->z_opcode, "ping")) {
462      return;
463    } else if (!strcasecmp(retnotice->z_class, "message") &&
464               !strcasecmp(retnotice->z_class_inst, "personal")) {
465      tmp=short_zuser(retnotice->z_recipient);
466      owl_function_makemsg("Message sent to %s.", tmp);
467      free(tmp);
468    } else {
469      owl_function_makemsg("Message sent to -c %s -i %s\n", retnotice->z_class, retnotice->z_class_inst);
470    }
471  } else if (!strcmp(retnotice->z_message, ZSRVACK_NOTSENT)) {
472    if (strcasecmp(retnotice->z_class, "message")) {
473      char buff[1024];
474      owl_function_error("No one subscribed to class class %s", retnotice->z_class);
475      sprintf(buff, "Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
476      owl_function_adminmsg("", buff);
477    } else {
478      char buff[1024];
479      tmp = short_zuser(retnotice->z_recipient);
480      owl_function_error("%s: Not logged in or subscribing to messages.", 
481                           tmp);
482
483      sprintf(buff, "Could not send message to %s: not logged in or subscribing to messages.\n", tmp);
484      owl_function_adminmsg("", buff);
485      if (owl_global_is_logging(&g)) owl_log_outgoing_zephyr_error(tmp, buff);
486      owl_free(tmp);
487    }
488  } else {
489    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
490  }
491}
492#else
493void owl_zephyr_handle_ack(void *retnotice)
494{
495}
496#endif
497
498#ifdef HAVE_LIBZEPHYR
499int owl_zephyr_notice_is_ack(ZNotice_t *n)
500{
501  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
502    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
503    return(1);
504  }
505  return(0);
506}
507#else
508int owl_zephyr_notice_is_ack(void *n)
509{
510  return(0);
511}
512#endif
513 
514void owl_zephyr_zaway(owl_message *m)
515{
516#ifdef HAVE_LIBZEPHYR
517  char *tmpbuff, *myuser, *to;
518 
519  /* bail if it doesn't look like a message we should reply to.  Some
520   * of this defined by the way zaway(1) works
521   */
522  if (strcasecmp(owl_message_get_class(m), "message")) return;
523  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
524  if (!strcasecmp(owl_message_get_sender(m), "")) return;
525  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
526  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
527  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
528  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
529  if (owl_message_get_attribute_value(m, "isauto")) return;
530
531  if (owl_global_is_smartstrip(&g)) {
532    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
533  } else {
534    to=owl_strdup(owl_message_get_sender(m));
535  }
536
537  send_zephyr("",
538              "Automated reply:",
539              owl_message_get_class(m),
540              owl_message_get_instance(m),
541              to,
542              owl_global_get_zaway_msg(&g));
543
544  myuser=short_zuser(to);
545  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
546    tmpbuff = owl_sprintf("zwrite %s", myuser);
547  } else {
548    tmpbuff = owl_sprintf("zwrite -i %s %s", owl_message_get_instance(m), myuser);
549  }
550  owl_free(myuser);
551  owl_free(to);
552
553  /* display the message as an admin message in the receive window */
554  owl_function_make_outgoing_zephyr(owl_global_get_zaway_msg(&g), tmpbuff, "Automated reply:");
555  owl_free(tmpbuff);
556#endif
557}
558
559#ifdef HAVE_LIBZEPHYR
560void owl_zephyr_hackaway_cr(ZNotice_t *n)
561{
562  /* replace \r's with ' '.  Gross-ish */
563  int i;
564
565  for (i=0; i<n->z_message_len; i++) {
566    if (n->z_message[i]=='\r') {
567      n->z_message[i]=' ';
568    }
569  }
570}
571#endif
572
573void owl_zephyr_zlocate(char *user, char *out, int auth)
574{
575#ifdef HAVE_LIBZEPHYR
576  int ret, numlocs;
577  int one = 1;
578  ZLocations_t locations;
579  char *myuser;
580 
581  strcpy(out, "");
582  ZResetAuthentication();
583  ret=ZLocateUser(user,&numlocs,auth?ZAUTH:ZNOAUTH);
584  if (ret != ZERR_NONE) {
585    sprintf(out, "Error locating user %s\n", user);
586    return;
587  }
588
589  if (numlocs==0) {
590    myuser=short_zuser(user);
591    sprintf(out, "%s: Hidden or not logged-in\n", myuser);
592    owl_free(myuser);
593    return;
594  }
595   
596  for (;numlocs;numlocs--) {
597    ZGetLocations(&locations,&one);
598    myuser=short_zuser(user);
599    sprintf(out, "%s%s: %s\t%s\t%s\n", out, myuser,
600            locations.host ? locations.host : "?",
601            locations.tty ? locations.tty : "?",
602            locations.time ? locations.time : "?");
603    owl_free(myuser);
604  }
605#endif
606}
607
608void owl_zephyr_addsub(char *filename, char *class, char *inst, char *recip)
609{
610#ifdef HAVE_LIBZEPHYR
611  char *line, subsfile[LINE], buff[LINE];
612  FILE *file;
613
614  line=owl_zephyr_makesubline(class, inst, recip);
615
616  if (filename==NULL) {
617    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
618  } else {
619    strcpy(subsfile, filename);
620  }
621
622  /* if the file already exists, check to see if the sub is already there */
623  file=fopen(subsfile, "r");
624  if (file) {
625    while (fgets(buff, LINE, file)!=NULL) {
626      if (!strcasecmp(buff, line)) {
627        owl_function_error("Subscription already present in %s", subsfile);
628        owl_free(line);
629        return;
630      }
631    }
632  }
633
634  /* if we get here then we didn't find it */
635  fclose(file);
636  file=fopen(subsfile, "a");
637  if (!file) {
638    owl_function_error("Error opening file %s for writing", subsfile);
639    owl_free(line);
640    return;
641  }
642  fputs(line, file);
643  fclose(file);
644  owl_function_makemsg("Subscription added");
645 
646  owl_free(line);
647#endif
648}
649
650void owl_zephyr_delsub(char *filename, char *class, char *inst, char *recip)
651{
652#ifdef HAVE_LIBZEPHYR
653  char *line, *subsfile;
654 
655  line=owl_zephyr_makesubline(class, inst, recip);
656  line[strlen(line)-1]='\0';
657
658  if (!filename) {
659    subsfile=owl_sprintf("%s/.zephyr.subs", owl_global_get_homedir(&g));
660  } else {
661    subsfile=owl_strdup(filename);
662  }
663 
664  owl_util_file_deleteline(subsfile, line, 1);
665  owl_free(subsfile);
666  owl_free(line);
667  owl_function_makemsg("Subscription removed");
668#endif
669}
670
671/* caller must free the return */
672char *owl_zephyr_makesubline(char *class, char *inst, char *recip)
673{
674  char *out;
675
676  out=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+30);
677  sprintf(out, "%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
678  return(out);
679}
680
681
682void owl_zephyr_zlog_in(void)
683{
684#ifdef HAVE_LIBZEPHYR
685  char *exposure, *eset;
686  int ret;
687
688  ZResetAuthentication();
689   
690  eset=EXPOSE_REALMVIS;
691  exposure=ZGetVariable("exposure");
692  if (exposure==NULL) {
693    eset=EXPOSE_REALMVIS;
694  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
695    eset = EXPOSE_NONE;
696  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
697    eset = EXPOSE_OPSTAFF;
698  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
699    eset = EXPOSE_REALMVIS;
700  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
701    eset = EXPOSE_REALMANN;
702  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
703    eset = EXPOSE_NETVIS;
704  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
705    eset = EXPOSE_NETANN;
706  }
707   
708  ret=ZSetLocation(eset);
709  if (ret != ZERR_NONE) {
710    /*
711      char buff[LINE];
712      sprintf(buff, "Error setting location: %s", error_message(ret));
713      owl_function_makemsg(buff);
714    */
715  }
716#endif
717}
718
719void owl_zephyr_zlog_out(void)
720{
721#ifdef HAVE_LIBZEPHYR
722  int ret;
723
724  ZResetAuthentication();
725  ret=ZUnsetLocation();
726  if (ret != ZERR_NONE) {
727    /*
728      char buff[LINE];
729      sprintf(buff, "Error unsetting location: %s", error_message(ret));
730      owl_function_makemsg(buff);
731    */
732  }
733#endif
734}
735
736void owl_zephyr_addbuddy(char *name)
737{
738  char *filename;
739  FILE *file;
740 
741  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
742  file=fopen(filename, "a");
743  owl_free(filename);
744  if (!file) {
745    owl_function_error("Error opening zephyr buddy file for append");
746    return;
747  }
748  fprintf(file, "%s\n", name);
749  fclose(file);
750}
751
752void owl_zephyr_delbuddy(char *name)
753{
754  char *filename;
755
756  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
757  owl_util_file_deleteline(filename, name, 0);
758  owl_free(filename);
759}
760
761/* return auth string */
762#ifdef HAVE_LIBZEPHYR
763char *owl_zephyr_get_authstr(ZNotice_t *n)
764{
765
766  if (!n) return("UNKNOWN");
767
768  if (n->z_auth == ZAUTH_FAILED) {
769    return ("FAILED");
770  } else if (n->z_auth == ZAUTH_NO) {
771    return ("NO");
772  } else if (n->z_auth == ZAUTH_YES) {
773    return ("YES");
774  } else {
775    return ("UNKNOWN");
776  }           
777}
778#else
779char *owl_zephyr_get_authstr(void *n)
780{
781  return("");
782}
783#endif
784
785/* Returns a buffer of subscriptions or an error message.  Caller must
786 * free the return.
787 */
788char *owl_zephyr_getsubs()
789{
790#ifdef HAVE_LIBZEPHYR
791  int ret, num, i, one;
792  ZSubscription_t sub;
793  char *out, *tmpbuff;
794  one=1;
795
796  ret=ZRetrieveSubscriptions(0, &num);
797  if (ret==ZERR_TOOMANYSUBS) {
798    return(owl_strdup("Zephyr: too many subscriptions\n"));
799  } else if (ret) {
800    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
801  }
802
803  out=owl_malloc(num*500);
804  tmpbuff=owl_malloc(num*500);
805  strcpy(out, "");
806  for (i=0; i<num; i++) {
807    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
808      owl_free(out);
809      owl_free(tmpbuff);
810      ZFlushSubscriptions();
811      out=owl_strdup("Error while getting subscriptions\n");
812      return(out);
813    } else {
814      sprintf(tmpbuff, "<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
815      strcpy(out, tmpbuff);
816    }
817  }
818
819  owl_free(tmpbuff);
820  ZFlushSubscriptions();
821  return(out);
822#else
823  return(owl_strdup("Zephyr not available"));
824#endif
825}
826
827char *owl_zephyr_get_variable(char *var)
828{
829#ifdef HAVE_LIBZEPHYR
830  return(ZGetVariable(var));
831#else
832  return("");
833#endif
834}
835
836void owl_zephyr_set_locationinfo(char *host, char *val)
837{
838#ifdef HAVE_LIBZEPHYR
839  ZInitLocationInfo(host, val);
840#endif
841}
842 
843/* Strip a local realm fron the zephyr user name.
844 * The caller must free the return
845 */
846char *short_zuser(char *in)
847{
848  char *out, *ptr;
849
850  out=owl_strdup(in);
851  ptr=strchr(out, '@');
852  if (ptr) {
853    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
854      *ptr='\0';
855    }
856  }
857  return(out);
858}
859
860/* Append a local realm to the zephyr user name if necessary.
861 * The caller must free the return.
862 */
863char *long_zuser(char *in)
864{
865  if (strchr(in, '@')) {
866    return(owl_strdup(in));
867  }
868  return(owl_sprintf("%s@%s", in, owl_zephyr_get_realm()));
869}
870
871/* strip out the instance from a zsender's principal.  Preserves the
872 * realm if present.  daemon.webzephyr is a special case.  The
873 * caller must free the return
874 */
875char *owl_zephyr_smartstripped_user(char *in)
876{
877  char *ptr, *realm, *out;
878
879  out=owl_strdup(in);
880
881  /* bail immeaditly if we don't have to do any work */
882  ptr=strchr(in, '.');
883  if (!strchr(in, '/') && !ptr) {
884    /* no '/' and no '.' */
885    return(out);
886  }
887  if (ptr && strchr(in, '@') && (ptr > strchr(in, '@'))) {
888    /* There's a '.' but it's in the realm */
889    return(out);
890  }
891  if (!strncasecmp(in, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
892    return(out);
893  }
894
895  /* remove the realm from ptr, but hold on to it */
896  realm=strchr(out, '@');
897  if (realm) realm[0]='\0';
898
899  /* strip */
900  ptr=strchr(out, '.');
901  if (!ptr) ptr=strchr(out, '/');
902  ptr[0]='\0';
903
904  /* reattach the realm if we had one */
905  if (realm) {
906    strcat(out, "@");
907    strcat(out, realm+1);
908  }
909
910  return(out);
911}
912
913/* read the list of users in 'filename' as a .anyone file, and put the
914 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
915 * use the default .anyone file in the users home directory.  Returns
916 * -1 on failure, 0 on success.
917 */
918int owl_zephyr_get_anyone_list(owl_list *in, char *filename)
919{
920#ifdef HAVE_LIBZEPHYR
921  char *ourfile, *tmp, buff[LINE];
922  FILE *f;
923
924  if (filename==NULL) {
925    tmp=owl_global_get_homedir(&g);
926    ourfile=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
927  } else {
928    ourfile=owl_strdup(filename);
929  }
930 
931  f=fopen(ourfile, "r");
932  if (!f) {
933    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
934    owl_free(ourfile);
935    return(-1);
936  }
937
938  while (fgets(buff, LINE, f)!=NULL) {
939    /* ignore comments, blank lines etc. */
940    if (buff[0]=='#') continue;
941    if (buff[0]=='\n') continue;
942    if (buff[0]=='\0') continue;
943   
944    /* strip the \n */
945    buff[strlen(buff)-1]='\0';
946   
947    /* ingore from # on */
948    tmp=strchr(buff, '#');
949    if (tmp) tmp[0]='\0';
950   
951    /* ingore from SPC */
952    tmp=strchr(buff, ' ');
953    if (tmp) tmp[0]='\0';
954   
955    /* stick on the local realm. */
956    if (!strchr(buff, '@')) {
957      strcat(buff, "@");
958      strcat(buff, ZGetRealm());
959    }
960    owl_list_append_element(in, owl_strdup(buff));
961  }
962  fclose(f);
963  owl_free(ourfile);
964  return(0);
965#else
966  return(-1);
967#endif
968}
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