source: zephyr.c @ 74037d9

barnowl_perlaimdebianowlrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 74037d9 was 74037d9, checked in by James M. Kretchmar <kretch@mit.edu>, 16 years ago
In 'sub' command, create .zephyr.subs if it doesn't exist [BZ 15] A fix for certain resize crashes (part from alexmv) [BZ 55]
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File size: 21.6 KB
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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    owl_function_error("Error locating user %s", user);
586  }
587
588  if (numlocs==0) {
589    myuser=short_zuser(user);
590    sprintf(out, "%s: Hidden or not logged-in\n", myuser);
591    owl_free(myuser);
592    return;
593  }
594   
595  for (;numlocs;numlocs--) {
596    ZGetLocations(&locations,&one);
597    myuser=short_zuser(user);
598    sprintf(out, "%s%s: %s\t%s\t%s\n", out, myuser, locations.host, locations.tty, locations.time);
599    owl_free(myuser);
600  }
601#endif
602}
603
604void owl_zephyr_addsub(char *filename, char *class, char *inst, char *recip)
605{
606#ifdef HAVE_LIBZEPHYR
607  char *line, subsfile[LINE], buff[LINE];
608  FILE *file;
609
610  line=owl_zephyr_makesubline(class, inst, recip);
611
612  if (filename==NULL) {
613    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
614  } else {
615    strcpy(subsfile, filename);
616  }
617
618  /* if the file already exists, check to see if the sub is already there */
619  file=fopen(subsfile, "r");
620  if (file) {
621    while (fgets(buff, LINE, file)!=NULL) {
622      if (!strcasecmp(buff, line)) {
623        owl_function_error("Subscription already present in %s", subsfile);
624        owl_free(line);
625        return;
626      }
627    }
628  }
629
630  /* if we get here then we didn't find it */
631  fclose(file);
632  file=fopen(subsfile, "a");
633  if (!file) {
634    owl_function_error("Error opening file %s for writing", subsfile);
635    owl_free(line);
636    return;
637  }
638  fputs(line, file);
639  fclose(file);
640  owl_function_makemsg("Subscription added");
641 
642  owl_free(line);
643#endif
644}
645
646void owl_zephyr_delsub(char *filename, char *class, char *inst, char *recip)
647{
648#ifdef HAVE_LIBZEPHYR
649  char *line, *subsfile;
650 
651  line=owl_zephyr_makesubline(class, inst, recip);
652  line[strlen(line)-1]='\0';
653
654  if (!filename) {
655    subsfile=owl_sprintf("%s/.zephyr.subs", owl_global_get_homedir(&g));
656  } else {
657    subsfile=owl_strdup(filename);
658  }
659 
660  owl_util_file_deleteline(subsfile, line, 1);
661  owl_free(subsfile);
662  owl_free(line);
663  owl_function_makemsg("Subscription removed");
664#endif
665}
666
667/* caller must free the return */
668char *owl_zephyr_makesubline(char *class, char *inst, char *recip)
669{
670  char *out;
671
672  out=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+30);
673  sprintf(out, "%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
674  return(out);
675}
676
677
678void owl_zephyr_zlog_in(void)
679{
680#ifdef HAVE_LIBZEPHYR
681  char *exposure, *eset;
682  int ret;
683
684  ZResetAuthentication();
685   
686  eset=EXPOSE_REALMVIS;
687  exposure=ZGetVariable("exposure");
688  if (exposure==NULL) {
689    eset=EXPOSE_REALMVIS;
690  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
691    eset = EXPOSE_NONE;
692  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
693    eset = EXPOSE_OPSTAFF;
694  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
695    eset = EXPOSE_REALMVIS;
696  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
697    eset = EXPOSE_REALMANN;
698  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
699    eset = EXPOSE_NETVIS;
700  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
701    eset = EXPOSE_NETANN;
702  }
703   
704  ret=ZSetLocation(eset);
705  if (ret != ZERR_NONE) {
706    /*
707      char buff[LINE];
708      sprintf(buff, "Error setting location: %s", error_message(ret));
709      owl_function_makemsg(buff);
710    */
711  }
712#endif
713}
714
715void owl_zephyr_zlog_out(void)
716{
717#ifdef HAVE_LIBZEPHYR
718  int ret;
719
720  ZResetAuthentication();
721  ret=ZUnsetLocation();
722  if (ret != ZERR_NONE) {
723    /*
724      char buff[LINE];
725      sprintf(buff, "Error unsetting location: %s", error_message(ret));
726      owl_function_makemsg(buff);
727    */
728  }
729#endif
730}
731
732void owl_zephyr_addbuddy(char *name)
733{
734  char *filename;
735  FILE *file;
736 
737  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
738  file=fopen(filename, "a");
739  owl_free(filename);
740  if (!file) {
741    owl_function_error("Error opening zephyr buddy file for append");
742    return;
743  }
744  fprintf(file, "%s\n", name);
745  fclose(file);
746}
747
748void owl_zephyr_delbuddy(char *name)
749{
750  char *filename;
751
752  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
753  owl_util_file_deleteline(filename, name, 0);
754  owl_free(filename);
755}
756
757/* return auth string */
758#ifdef HAVE_LIBZEPHYR
759char *owl_zephyr_get_authstr(ZNotice_t *n)
760{
761
762  if (!n) return("UNKNOWN");
763
764  if (n->z_auth == ZAUTH_FAILED) {
765    return ("FAILED");
766  } else if (n->z_auth == ZAUTH_NO) {
767    return ("NO");
768  } else if (n->z_auth == ZAUTH_YES) {
769    return ("YES");
770  } else {
771    return ("UNKNOWN");
772  }           
773}
774#else
775char *owl_zephyr_get_authstr(void *n)
776{
777  return("");
778}
779#endif
780
781/* Returns a buffer of subscriptions or an error message.  Caller must
782 * free the return.
783 */
784char *owl_zephyr_getsubs()
785{
786#ifdef HAVE_LIBZEPHYR
787  int ret, num, i, one;
788  ZSubscription_t sub;
789  char *out, *tmpbuff;
790  one=1;
791
792  ret=ZRetrieveSubscriptions(0, &num);
793  if (ret==ZERR_TOOMANYSUBS) {
794    return(owl_strdup("Zephyr: too many subscriptions\n"));
795  } else if (ret) {
796    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
797  }
798
799  out=owl_malloc(num*500);
800  tmpbuff=owl_malloc(num*500);
801  strcpy(out, "");
802  for (i=0; i<num; i++) {
803    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
804      owl_free(out);
805      owl_free(tmpbuff);
806      ZFlushSubscriptions();
807      out=owl_strdup("Error while getting subscriptions\n");
808      return(out);
809    } else {
810      sprintf(tmpbuff, "<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
811      strcpy(out, tmpbuff);
812    }
813  }
814
815  owl_free(tmpbuff);
816  ZFlushSubscriptions();
817  return(out);
818#else
819  return(owl_strdup("Zephyr not available"));
820#endif
821}
822
823char *owl_zephyr_get_variable(char *var)
824{
825#ifdef HAVE_LIBZEPHYR
826  return(ZGetVariable(var));
827#else
828  return("");
829#endif
830}
831
832void owl_zephyr_set_locationinfo(char *host, char *val)
833{
834#ifdef HAVE_LIBZEPHYR
835  ZInitLocationInfo(host, val);
836#endif
837}
838 
839/* Strip a local realm fron the zephyr user name.
840 * The caller must free the return
841 */
842char *short_zuser(char *in)
843{
844  char *out, *ptr;
845
846  out=owl_strdup(in);
847  ptr=strchr(out, '@');
848  if (ptr) {
849    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
850      *ptr='\0';
851    }
852  }
853  return(out);
854}
855
856/* Append a local realm to the zephyr user name if necessary.
857 * The caller must free the return.
858 */
859char *long_zuser(char *in)
860{
861  if (strchr(in, '@')) {
862    return(owl_strdup(in));
863  }
864  return(owl_sprintf("%s@%s", in, owl_zephyr_get_realm()));
865}
866
867/* strip out the instance from a zsender's principal.  Preserves the
868 * realm if present.  daemon.webzephyr is a special case.  The
869 * caller must free the return
870 */
871char *owl_zephyr_smartstripped_user(char *in)
872{
873  char *ptr, *realm, *out;
874
875  out=owl_strdup(in);
876
877  /* bail immeaditly if we don't have to do any work */
878  ptr=strchr(in, '.');
879  if (!strchr(in, '/') && !ptr) {
880    /* no '/' and no '.' */
881    return(out);
882  }
883  if (ptr && strchr(in, '@') && (ptr > strchr(in, '@'))) {
884    /* There's a '.' but it's in the realm */
885    return(out);
886  }
887  if (!strncasecmp(in, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
888    return(out);
889  }
890
891  /* remove the realm from ptr, but hold on to it */
892  realm=strchr(out, '@');
893  if (realm) realm[0]='\0';
894
895  /* strip */
896  ptr=strchr(out, '.');
897  if (!ptr) ptr=strchr(out, '/');
898  ptr[0]='\0';
899
900  /* reattach the realm if we had one */
901  if (realm) {
902    strcat(out, "@");
903    strcat(out, realm+1);
904  }
905
906  return(out);
907}
908
909/* read the list of users in 'filename' as a .anyone file, and put the
910 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
911 * use the default .anyone file in the users home directory.  Returns
912 * -1 on failure, 0 on success.
913 */
914int owl_zephyr_get_anyone_list(owl_list *in, char *filename)
915{
916#ifdef HAVE_LIBZEPHYR
917  char *ourfile, *tmp, buff[LINE];
918  FILE *f;
919
920  if (filename==NULL) {
921    tmp=owl_global_get_homedir(&g);
922    ourfile=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
923  } else {
924    ourfile=owl_strdup(filename);
925  }
926 
927  f=fopen(ourfile, "r");
928  if (!f) {
929    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
930    owl_free(ourfile);
931    return(-1);
932  }
933
934  while (fgets(buff, LINE, f)!=NULL) {
935    /* ignore comments, blank lines etc. */
936    if (buff[0]=='#') continue;
937    if (buff[0]=='\n') continue;
938    if (buff[0]=='\0') continue;
939   
940    /* strip the \n */
941    buff[strlen(buff)-1]='\0';
942   
943    /* ingore from # on */
944    tmp=strchr(buff, '#');
945    if (tmp) tmp[0]='\0';
946   
947    /* ingore from SPC */
948    tmp=strchr(buff, ' ');
949    if (tmp) tmp[0]='\0';
950   
951    /* stick on the local realm. */
952    if (!strchr(buff, '@')) {
953      strcat(buff, "@");
954      strcat(buff, ZGetRealm());
955    }
956    owl_list_append_element(in, owl_strdup(buff));
957  }
958  fclose(f);
959  owl_free(ourfile);
960  return(0);
961#else
962  return(-1);
963#endif
964}
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