source: zephyr.c @ 128171a

barnowl_perlaimdebianrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 128171a was 128171a, checked in by Alex Vandiver <alexmv@mit.edu>, 14 years ago
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File size: 25.4 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  if(owl_global_is_havezephyr(&g)) {
37    unsuball();
38    ZClosePort();
39  }
40#endif
41  return(0);
42}
43
44int owl_zephyr_zpending()
45{
46#ifdef HAVE_LIBZEPHYR
47  if(owl_global_is_havezephyr(&g))
48    return(ZPending());
49  else
50    return 0;
51#else
52  return(0);
53#endif
54}
55
56char *owl_zephyr_get_realm()
57{
58#ifdef HAVE_LIBZEPHYR
59  return(ZGetRealm());
60#else
61  return("");
62#endif
63}
64
65char *owl_zephyr_get_sender()
66{
67#ifdef HAVE_LIBZEPHYR
68  return(ZGetSender());
69#else
70  return("");
71#endif
72}
73
74#ifdef HAVE_LIBZEPHYR
75int owl_zephyr_loadsubs_helper(ZSubscription_t subs[], int count)
76{
77  int i, ret = 0;
78  /* sub without defaults */
79  if (ZSubscribeToSansDefaults(subs,count,0) != ZERR_NONE) {
80    owl_function_error("Error subscribing to zephyr notifications.");
81    ret=-2;
82  }
83
84  /* free stuff */
85  for (i=0; i<count; i++) {
86    owl_free(subs[i].zsub_class);
87    owl_free(subs[i].zsub_classinst);
88    owl_free(subs[i].zsub_recipient);
89  }
90
91  return ret;
92}
93#endif
94
95/* Load zephyr subscriptions form 'filename'.  If 'filename' is NULL,
96 * the default file $HOME/.zephyr.subs will be used.
97 *
98 * Returns 0 on success.  If the file does not exist, return -1 if
99 * 'error_on_nofile' is 1, otherwise return 0.  Return -1 if the file
100 * exists but can not be read.  Return -2 if there is a failure from
101 * zephyr to load the subscriptions.
102 */
103int owl_zephyr_loadsubs(char *filename, int error_on_nofile)
104{
105#ifdef HAVE_LIBZEPHYR
106  FILE *file;
107  char *tmp, *start;
108  char buffer[1024], subsfile[1024];
109  ZSubscription_t *subs;
110  int subSize = 1024;
111  int count, ret;
112  struct stat statbuff;
113
114  subs = owl_malloc(sizeof(ZSubscription_t) * subSize);
115  if (filename==NULL) {
116    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
117  } else {
118    strcpy(subsfile, filename);
119  }
120
121  ret=stat(subsfile, &statbuff);
122  if (ret) {
123    if (error_on_nofile==1) return(-1);
124    return(0);
125  }
126
127  ZResetAuthentication();
128  count=0;
129  file=fopen(subsfile, "r");
130  if (!file) return(-1);
131  while ( fgets(buffer, 1024, file)!=NULL ) {
132    if (buffer[0]=='#' || buffer[0]=='\n' || buffer[0]=='\n') continue;
133   
134    if (buffer[0]=='-') {
135      start=buffer+1;
136    } else {
137      start=buffer;
138    }
139   
140    if (count >= subSize) {
141      ZSubscription_t* newsubs;
142      newsubs = owl_realloc(subs, sizeof(ZSubscription_t) * subSize * 2);
143      if (NULL == newsubs) {
144        /* If realloc fails, load what we've got, clear, and continue */
145        ret = owl_zephyr_loadsubs_helper(subs, count);
146        if (ret != 0) {
147          fclose(file);
148          return(ret);
149        }
150        count=0;
151      }
152      else {
153        subs = newsubs;
154        subSize *= 2;
155      }
156    }
157   
158    /* add it to the list of subs */
159    if ((tmp=(char *) strtok(start, ",\n\r"))==NULL) continue;
160    subs[count].zsub_class=owl_strdup(tmp);
161    if ((tmp=(char *) strtok(NULL, ",\n\r"))==NULL) continue;
162    subs[count].zsub_classinst=owl_strdup(tmp);
163    if ((tmp=(char *) strtok(NULL, " \t\n\r"))==NULL) continue;
164    subs[count].zsub_recipient=owl_strdup(tmp);
165   
166    /* if it started with '-' then add it to the global punt list, and
167     * remove it from the list of subs. */
168    if (buffer[0]=='-') {
169      owl_function_zpunt(subs[count].zsub_class, subs[count].zsub_classinst, subs[count].zsub_recipient, 0);
170      owl_free(subs[count].zsub_class);
171      owl_free(subs[count].zsub_classinst);
172      owl_free(subs[count].zsub_recipient);
173    }
174    else {
175      count++;
176    }
177  }
178  fclose(file);
179
180  ret=owl_zephyr_loadsubs_helper(subs, count);
181  owl_free(subs);
182  return(ret);
183#else
184  return(0);
185#endif
186}
187
188int owl_zephyr_loaddefaultsubs()
189{
190#ifdef HAVE_LIBZEPHYR
191  ZSubscription_t subs[10];
192   
193  if (ZSubscribeTo(subs,0,0) != ZERR_NONE) {
194    owl_function_error("Error subscribing to default zephyr notifications.");
195    return(-1);
196  }
197  return(0);
198#else
199  return(0);
200#endif
201}
202
203int owl_zephyr_loadloginsubs(char *filename)
204{
205#ifdef HAVE_LIBZEPHYR
206  FILE *file;
207  ZSubscription_t subs[3001];
208  char subsfile[1024], buffer[1024];
209  int count, ret, i;
210  struct stat statbuff;
211
212  if (filename==NULL) {
213    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".anyone");
214  } else {
215    strcpy(subsfile, filename);
216  }
217 
218  ret=stat(subsfile, &statbuff);
219  if (ret) return(0);
220
221  ret=0;
222
223  ZResetAuthentication();
224  /* need to redo this to do chunks, not just bag out after 3000 */
225  count=0;
226  file=fopen(subsfile, "r");
227  if (file) {
228    while ( fgets(buffer, 1024, file)!=NULL ) {
229      if (buffer[0]=='#' || buffer[0]=='\n' || buffer[0]=='\n') continue;
230     
231      if (count >= 3000) break; /* also tell the user */
232
233      buffer[strlen(buffer)-1]='\0';
234      subs[count].zsub_class="login";
235      subs[count].zsub_recipient="*";
236      if (strchr(buffer, '@')) {
237        subs[count].zsub_classinst=owl_strdup(buffer);
238      } else {
239        subs[count].zsub_classinst=owl_sprintf("%s@%s", buffer, ZGetRealm());
240      }
241
242      count++;
243    }
244    fclose(file);
245  } else {
246    count=0;
247    ret=-1;
248  }
249
250  /* sub with defaults */
251  if (ZSubscribeToSansDefaults(subs,count,0) != ZERR_NONE) {
252    owl_function_error("Error subscribing to zephyr notifications.");
253    ret=-2;
254  }
255
256  /* free stuff */
257  for (i=0; i<count; i++) {
258    owl_free(subs[i].zsub_classinst);
259  }
260
261  return(ret);
262#else
263  return(0);
264#endif
265}
266
267void unsuball()
268{
269#if HAVE_LIBZEPHYR
270  int ret;
271
272  ZResetAuthentication();
273  ret=ZCancelSubscriptions(0);
274  if (ret != ZERR_NONE) {
275    com_err("owl",ret,"while unsubscribing");
276  }
277#endif
278}
279
280int owl_zephyr_sub(char *class, char *inst, char *recip)
281{
282#ifdef HAVE_LIBZEPHYR
283  ZSubscription_t subs[5];
284
285  subs[0].zsub_class=class;
286  subs[0].zsub_classinst=inst;
287  subs[0].zsub_recipient=recip;
288
289  ZResetAuthentication();
290  if (ZSubscribeTo(subs,1,0) != ZERR_NONE) {
291    owl_function_error("Error subbing to <%s,%s,%s>", class, inst, recip);
292    return(-2);
293  }
294  return(0);
295#else
296  return(0);
297#endif
298}
299
300
301int owl_zephyr_unsub(char *class, char *inst, char *recip)
302{
303#ifdef HAVE_LIBZEPHYR
304  ZSubscription_t subs[5];
305
306  subs[0].zsub_class=class;
307  subs[0].zsub_classinst=inst;
308  subs[0].zsub_recipient=recip;
309
310  ZResetAuthentication();
311  if (ZUnsubscribeTo(subs,1,0) != ZERR_NONE) {
312    owl_function_error("Error unsubbing from <%s,%s,%s>", class, inst, recip);
313    return(-2);
314  }
315  return(0);
316#else
317  return(0);
318#endif
319}
320
321/* return a pointer to the data in the Jth field, (NULL terminated by
322 * definition).  Caller must free the return.
323 */
324#ifdef HAVE_LIBZEPHYR
325char *owl_zephyr_get_field(ZNotice_t *n, int j)
326{
327  int i, count, save;
328  char *out;
329
330  /* If there's no message here, just run along now */
331  if (n->z_message_len == 0)
332    return(owl_strdup(""));
333
334  count=save=0;
335  for (i=0; i<n->z_message_len; i++) {
336    if (n->z_message[i]=='\0') {
337      count++;
338      if (count==j) {
339        /* just found the end of the field we're looking for */
340        return(owl_strdup(n->z_message+save));
341      } else {
342        save=i+1;
343      }
344    }
345  }
346  /* catch the last field, which might not be null terminated */
347  if (count==j-1) {
348    out=owl_malloc(n->z_message_len-save+5);
349    memcpy(out, n->z_message+save, n->z_message_len-save);
350    out[n->z_message_len-save]='\0';
351    return(out);
352  }
353
354  return(owl_strdup(""));
355}
356#else
357char *owl_zephyr_get_field(void *n, int j)
358{
359  return(owl_strdup(""));
360}
361#endif
362
363
364#ifdef HAVE_LIBZEPHYR
365int owl_zephyr_get_num_fields(ZNotice_t *n)
366{
367  int i, fields;
368
369  fields=1;
370  for (i=0; i<n->z_message_len; i++) {
371    if (n->z_message[i]=='\0') fields++;
372  }
373 
374  return(fields);
375}
376#else
377int owl_zephyr_get_num_fields(void *n)
378{
379  return(0);
380}
381#endif
382
383#ifdef HAVE_LIBZEPHYR
384/* return a pointer to the message, place the message length in k
385 * caller must free the return
386 */
387char *owl_zephyr_get_message(ZNotice_t *n, owl_message *m)
388{
389  /* don't let ping messages have a body */
390  if (!strcasecmp(n->z_opcode, "ping")) {
391    return(owl_strdup(""));
392  }
393
394  /* deal with MIT NOC messages */
395  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")) {
396    char *msg, *field3, *field4;
397
398    field3 = owl_zephyr_get_field(n, 3);
399    field4 = owl_zephyr_get_field(n, 4);
400
401    msg = owl_sprintf("%s service on %s %s\n%s", n->z_opcode, n->z_class_inst, field3, field4);
402    owl_free(field3);
403    owl_free(field4);
404    if (msg) {
405      return msg;
406    }
407  }
408  /* deal with MIT Discuss messages */
409  else if (!strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3 ($5)\nSubject: $4")) {
410    char *msg, *field1, *field2, *field3, *field4, *field5;
411   
412    field1 = owl_zephyr_get_field(n, 1);
413    field2 = owl_zephyr_get_field(n, 2);
414    field3 = owl_zephyr_get_field(n, 3);
415    field4 = owl_zephyr_get_field(n, 4);
416    field5 = owl_zephyr_get_field(n, 5);
417   
418    msg = owl_sprintf("New transaction [%s] entered in %s\nFrom: %s (%s)\nSubject: %s", field1, field2, field3, field5, field4);
419    owl_free(field1);
420    owl_free(field2);
421    owl_free(field3);
422    owl_free(field4);
423    owl_free(field5);
424    if (msg) {
425      return msg;
426    }
427  }
428  /* deal with MIT Moira messages */
429  else if (!strcasecmp(n->z_default_format, "MOIRA $instance on $fromhost:\n $message\n")) {
430    char *msg, *field1;
431   
432    field1 = owl_zephyr_get_field(n, 1);
433   
434    msg = owl_sprintf("MOIRA %s on %s: %s", n->z_class_inst, owl_message_get_hostname(m), field1);
435    owl_free(field1);
436    if (msg) {
437      return msg;
438    }
439  }
440
441  if (owl_zephyr_get_num_fields(n) == 1) {
442    return(owl_zephyr_get_field(n, 1));
443  }
444  else {
445    return(owl_zephyr_get_field(n, 2));
446  }
447}
448#endif
449
450#ifdef HAVE_LIBZEPHYR
451char *owl_zephyr_get_zsig(ZNotice_t *n, int *k)
452{
453  /* return a pointer to the zsig if there is one */
454
455  /* message length 0? No zsig */
456  if (n->z_message_len==0) {
457    *k=0;
458    return("");
459  }
460
461  /* If there's only one field, no zsig */
462  if (owl_zephyr_get_num_fields(n) == 1) {
463    *k=0;
464    return("");
465  }
466
467  /* Everything else is field 1 */
468  *k=strlen(n->z_message);
469  return(n->z_message);
470}
471#else
472char *owl_zephyr_get_zsig(void *n, int *k)
473{
474  return("");
475}
476#endif
477
478int send_zephyr(char *opcode, char *zsig, char *class, char *instance, char *recipient, char *message)
479{
480#ifdef HAVE_LIBZEPHYR
481  int ret;
482  ZNotice_t notice;
483   
484  memset(&notice, 0, sizeof(notice));
485
486  ZResetAuthentication();
487
488  if (!zsig) zsig="";
489 
490  notice.z_kind=ACKED;
491  notice.z_port=0;
492  notice.z_class=class;
493  notice.z_class_inst=instance;
494  if (!strcmp(recipient, "*") || !strcmp(recipient, "@")) {
495    notice.z_recipient="";
496  } else {
497    notice.z_recipient=recipient;
498  }
499  notice.z_default_format="Class $class, Instance $instance:\nTo: @bold($recipient) at $time $date\nFrom: @bold{$1 <$sender>}\n\n$2";
500  notice.z_sender=NULL;
501  if (opcode) notice.z_opcode=opcode;
502
503  notice.z_message_len=strlen(zsig)+1+strlen(message);
504  notice.z_message=owl_malloc(notice.z_message_len+10);
505  strcpy(notice.z_message, zsig);
506  memcpy(notice.z_message+strlen(zsig)+1, message, strlen(message));
507
508  /* ret=ZSendNotice(&notice, ZAUTH); */
509  ret=ZSrvSendNotice(&notice, ZAUTH, send_zephyr_helper);
510 
511  /* free then check the return */
512  owl_free(notice.z_message);
513  ZFreeNotice(&notice);
514  if (ret!=ZERR_NONE) {
515    owl_function_error("Error sending zephyr");
516    return(ret);
517  }
518  return(0);
519#else
520  return(0);
521#endif
522}
523
524#ifdef HAVE_LIBZEPHYR
525Code_t send_zephyr_helper(ZNotice_t *notice, char *buf, int len, int wait)
526{
527  return(ZSendPacket(buf, len, 0));
528}
529#endif
530
531void send_ping(char *to)
532{
533#ifdef HAVE_LIBZEPHYR
534  send_zephyr("PING", "", "MESSAGE", "PERSONAL", to, "");
535#endif
536}
537
538#ifdef HAVE_LIBZEPHYR
539void owl_zephyr_handle_ack(ZNotice_t *retnotice)
540{
541  char *tmp;
542 
543  /* if it's an HMACK ignore it */
544  if (retnotice->z_kind == HMACK) return;
545
546  if (retnotice->z_kind == SERVNAK) {
547    owl_function_error("Authorization failure sending zephyr");
548  } else if ((retnotice->z_kind != SERVACK) || !retnotice->z_message_len) {
549    owl_function_error("Detected server failure while receiving acknowledgement");
550  } else if (!strcmp(retnotice->z_message, ZSRVACK_SENT)) {
551    if (!strcasecmp(retnotice->z_opcode, "ping")) {
552      return;
553    } else if (!strcasecmp(retnotice->z_class, "message") &&
554               !strcasecmp(retnotice->z_class_inst, "personal")) {
555      tmp=short_zuser(retnotice->z_recipient);
556      owl_function_makemsg("Message sent to %s.", tmp);
557      free(tmp);
558    } else {
559      owl_function_makemsg("Message sent to -c %s -i %s\n", retnotice->z_class, retnotice->z_class_inst);
560    }
561  } else if (!strcmp(retnotice->z_message, ZSRVACK_NOTSENT)) {
562    if (strcasecmp(retnotice->z_class, "message")) {
563      char buff[1024];
564      owl_function_error("No one subscribed to class class %s", retnotice->z_class);
565      sprintf(buff, "Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
566      owl_function_adminmsg("", buff);
567    } else {
568      char buff[1024];
569      tmp = short_zuser(retnotice->z_recipient);
570      owl_function_error("%s: Not logged in or subscribing to messages.", tmp);
571      sprintf(buff, "Could not send message to %s: not logged in or subscribing to messages.\n", tmp);
572      owl_function_adminmsg("", buff);
573      owl_log_outgoing_zephyr_error(tmp, buff);
574      owl_free(tmp);
575    }
576  } else {
577    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
578  }
579}
580#else
581void owl_zephyr_handle_ack(void *retnotice)
582{
583}
584#endif
585
586#ifdef HAVE_LIBZEPHYR
587int owl_zephyr_notice_is_ack(ZNotice_t *n)
588{
589  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
590    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
591    return(1);
592  }
593  return(0);
594}
595#else
596int owl_zephyr_notice_is_ack(void *n)
597{
598  return(0);
599}
600#endif
601 
602void owl_zephyr_zaway(owl_message *m)
603{
604#ifdef HAVE_LIBZEPHYR
605  char *tmpbuff, *myuser, *to;
606  owl_message *mout;
607 
608  /* bail if it doesn't look like a message we should reply to.  Some
609   * of this defined by the way zaway(1) works
610   */
611  if (strcasecmp(owl_message_get_class(m), "message")) return;
612  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
613  if (!strcasecmp(owl_message_get_sender(m), "")) return;
614  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
615  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
616  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
617  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
618  if (owl_message_get_attribute_value(m, "isauto")) return;
619
620  if (owl_global_is_smartstrip(&g)) {
621    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
622  } else {
623    to=owl_strdup(owl_message_get_sender(m));
624  }
625
626  send_zephyr("",
627              "Automated reply:",
628              owl_message_get_class(m),
629              owl_message_get_instance(m),
630              to,
631              owl_global_get_zaway_msg(&g));
632
633  myuser=short_zuser(to);
634  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
635    tmpbuff = owl_sprintf("zwrite %s", myuser);
636  } else {
637    tmpbuff = owl_sprintf("zwrite -i %s %s", owl_message_get_instance(m), myuser);
638  }
639  owl_free(myuser);
640  owl_free(to);
641
642  /* display the message as an admin message in the receive window */
643  mout=owl_function_make_outgoing_zephyr(owl_global_get_zaway_msg(&g), tmpbuff, "Automated reply:");
644  owl_global_messagequeue_addmsg(&g, mout);
645  owl_free(tmpbuff);
646#endif
647}
648
649#ifdef HAVE_LIBZEPHYR
650void owl_zephyr_hackaway_cr(ZNotice_t *n)
651{
652  /* replace \r's with ' '.  Gross-ish */
653  int i;
654
655  for (i=0; i<n->z_message_len; i++) {
656    if (n->z_message[i]=='\r') {
657      n->z_message[i]=' ';
658    }
659  }
660}
661#endif
662
663void owl_zephyr_zlocate(char *user, char *out, int auth)
664{
665#ifdef HAVE_LIBZEPHYR
666  int ret, numlocs;
667  int one = 1;
668  ZLocations_t locations;
669  char *myuser;
670 
671  strcpy(out, "");
672  ZResetAuthentication();
673  ret=ZLocateUser(user,&numlocs,auth?ZAUTH:ZNOAUTH);
674  if (ret != ZERR_NONE) {
675    sprintf(out, "Error locating user %s\n", user);
676    return;
677  }
678
679  if (numlocs==0) {
680    myuser=short_zuser(user);
681    sprintf(out, "%s: Hidden or not logged-in\n", myuser);
682    owl_free(myuser);
683    return;
684  }
685   
686  for (;numlocs;numlocs--) {
687    ZGetLocations(&locations,&one);
688    myuser=short_zuser(user);
689    sprintf(out, "%s%s: %s\t%s\t%s\n", out, myuser,
690            locations.host ? locations.host : "?",
691            locations.tty ? locations.tty : "?",
692            locations.time ? locations.time : "?");
693    owl_free(myuser);
694  }
695#endif
696}
697
698void owl_zephyr_addsub(char *filename, char *class, char *inst, char *recip)
699{
700#ifdef HAVE_LIBZEPHYR
701  char *line, subsfile[LINE], buff[LINE];
702  FILE *file;
703
704  line=owl_zephyr_makesubline(class, inst, recip);
705
706  if (filename==NULL) {
707    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
708  } else {
709    strcpy(subsfile, filename);
710  }
711
712  /* if the file already exists, check to see if the sub is already there */
713  file=fopen(subsfile, "r");
714  if (file) {
715    while (fgets(buff, LINE, file)!=NULL) {
716      if (!strcasecmp(buff, line)) {
717        owl_function_error("Subscription already present in %s", subsfile);
718        owl_free(line);
719        fclose(file);
720        return;
721      }
722    }
723    fclose(file);
724  }
725
726  /* if we get here then we didn't find it */
727  file=fopen(subsfile, "a");
728  if (!file) {
729    owl_function_error("Error opening file %s for writing", subsfile);
730    owl_free(line);
731    return;
732  }
733  fputs(line, file);
734  fclose(file);
735  owl_function_makemsg("Subscription added");
736 
737  owl_free(line);
738#endif
739}
740
741void owl_zephyr_delsub(char *filename, char *class, char *inst, char *recip)
742{
743#ifdef HAVE_LIBZEPHYR
744  char *line, *subsfile;
745 
746  line=owl_zephyr_makesubline(class, inst, recip);
747  line[strlen(line)-1]='\0';
748
749  if (!filename) {
750    subsfile=owl_sprintf("%s/.zephyr.subs", owl_global_get_homedir(&g));
751  } else {
752    subsfile=owl_strdup(filename);
753  }
754 
755  owl_util_file_deleteline(subsfile, line, 1);
756  owl_free(subsfile);
757  owl_free(line);
758  owl_function_makemsg("Subscription removed");
759#endif
760}
761
762/* caller must free the return */
763char *owl_zephyr_makesubline(char *class, char *inst, char *recip)
764{
765  char *out;
766
767  out=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+30);
768  sprintf(out, "%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
769  return(out);
770}
771
772
773void owl_zephyr_zlog_in(void)
774{
775#ifdef HAVE_LIBZEPHYR
776  char *exposure, *eset;
777  int ret;
778
779  ZResetAuthentication();
780   
781  eset=EXPOSE_REALMVIS;
782  exposure=ZGetVariable("exposure");
783  if (exposure==NULL) {
784    eset=EXPOSE_REALMVIS;
785  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
786    eset = EXPOSE_NONE;
787  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
788    eset = EXPOSE_OPSTAFF;
789  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
790    eset = EXPOSE_REALMVIS;
791  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
792    eset = EXPOSE_REALMANN;
793  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
794    eset = EXPOSE_NETVIS;
795  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
796    eset = EXPOSE_NETANN;
797  }
798   
799  ret=ZSetLocation(eset);
800  if (ret != ZERR_NONE) {
801    /*
802      char buff[LINE];
803      sprintf(buff, "Error setting location: %s", error_message(ret));
804      owl_function_makemsg(buff);
805    */
806  }
807#endif
808}
809
810void owl_zephyr_zlog_out(void)
811{
812#ifdef HAVE_LIBZEPHYR
813  int ret;
814
815  ZResetAuthentication();
816  ret=ZUnsetLocation();
817  if (ret != ZERR_NONE) {
818    /*
819      char buff[LINE];
820      sprintf(buff, "Error unsetting location: %s", error_message(ret));
821      owl_function_makemsg(buff);
822    */
823  }
824#endif
825}
826
827void owl_zephyr_addbuddy(char *name)
828{
829  char *filename;
830  FILE *file;
831 
832  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
833  file=fopen(filename, "a");
834  owl_free(filename);
835  if (!file) {
836    owl_function_error("Error opening zephyr buddy file for append");
837    return;
838  }
839  fprintf(file, "%s\n", name);
840  fclose(file);
841}
842
843void owl_zephyr_delbuddy(char *name)
844{
845  char *filename;
846
847  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
848  owl_util_file_deleteline(filename, name, 0);
849  owl_free(filename);
850}
851
852/* return auth string */
853#ifdef HAVE_LIBZEPHYR
854char *owl_zephyr_get_authstr(ZNotice_t *n)
855{
856
857  if (!n) return("UNKNOWN");
858
859  if (n->z_auth == ZAUTH_FAILED) {
860    return ("FAILED");
861  } else if (n->z_auth == ZAUTH_NO) {
862    return ("NO");
863  } else if (n->z_auth == ZAUTH_YES) {
864    return ("YES");
865  } else {
866    return ("UNKNOWN");
867  }           
868}
869#else
870char *owl_zephyr_get_authstr(void *n)
871{
872  return("");
873}
874#endif
875
876/* Returns a buffer of subscriptions or an error message.  Caller must
877 * free the return.
878 */
879char *owl_zephyr_getsubs()
880{
881#ifdef HAVE_LIBZEPHYR
882  int ret, num, i, one;
883  ZSubscription_t sub;
884  char *out, *tmpbuff;
885  one=1;
886
887  ret=ZRetrieveSubscriptions(0, &num);
888  if (ret==ZERR_TOOMANYSUBS) {
889    return(owl_strdup("Zephyr: too many subscriptions\n"));
890  } else if (ret) {
891    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
892  }
893
894  out=owl_malloc(num*500);
895  tmpbuff=owl_malloc(num*500);
896  strcpy(out, "");
897  for (i=0; i<num; i++) {
898    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
899      owl_free(out);
900      owl_free(tmpbuff);
901      ZFlushSubscriptions();
902      out=owl_strdup("Error while getting subscriptions\n");
903      return(out);
904    } else {
905      sprintf(tmpbuff, "<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
906      strcpy(out, tmpbuff);
907    }
908  }
909
910  owl_free(tmpbuff);
911  ZFlushSubscriptions();
912  return(out);
913#else
914  return(owl_strdup("Zephyr not available"));
915#endif
916}
917
918char *owl_zephyr_get_variable(char *var)
919{
920#ifdef HAVE_LIBZEPHYR
921  return(ZGetVariable(var));
922#else
923  return("");
924#endif
925}
926
927void owl_zephyr_set_locationinfo(char *host, char *val)
928{
929#ifdef HAVE_LIBZEPHYR
930  ZInitLocationInfo(host, val);
931#endif
932}
933 
934/* Strip a local realm fron the zephyr user name.
935 * The caller must free the return
936 */
937char *short_zuser(char *in)
938{
939  char *out, *ptr;
940
941  out=owl_strdup(in);
942  ptr=strchr(out, '@');
943  if (ptr) {
944    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
945      *ptr='\0';
946    }
947  }
948  return(out);
949}
950
951/* Append a local realm to the zephyr user name if necessary.
952 * The caller must free the return.
953 */
954char *long_zuser(char *in)
955{
956  if (strchr(in, '@')) {
957    return(owl_strdup(in));
958  }
959  return(owl_sprintf("%s@%s", in, owl_zephyr_get_realm()));
960}
961
962/* strip out the instance from a zsender's principal.  Preserves the
963 * realm if present.  daemon.webzephyr is a special case.  The
964 * caller must free the return
965 */
966char *owl_zephyr_smartstripped_user(char *in)
967{
968  char *ptr, *realm, *out;
969
970  out=owl_strdup(in);
971
972  /* bail immeaditly if we don't have to do any work */
973  ptr=strchr(in, '.');
974  if (!strchr(in, '/') && !ptr) {
975    /* no '/' and no '.' */
976    return(out);
977  }
978  if (ptr && strchr(in, '@') && (ptr > strchr(in, '@'))) {
979    /* There's a '.' but it's in the realm */
980    return(out);
981  }
982  if (!strncasecmp(in, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
983    return(out);
984  }
985
986  /* remove the realm from ptr, but hold on to it */
987  realm=strchr(out, '@');
988  if (realm) realm[0]='\0';
989
990  /* strip */
991  ptr=strchr(out, '.');
992  if (!ptr) ptr=strchr(out, '/');
993  ptr[0]='\0';
994
995  /* reattach the realm if we had one */
996  if (realm) {
997    strcat(out, "@");
998    strcat(out, realm+1);
999  }
1000
1001  return(out);
1002}
1003
1004/* read the list of users in 'filename' as a .anyone file, and put the
1005 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
1006 * use the default .anyone file in the users home directory.  Returns
1007 * -1 on failure, 0 on success.
1008 */
1009int owl_zephyr_get_anyone_list(owl_list *in, char *filename)
1010{
1011#ifdef HAVE_LIBZEPHYR
1012  char *ourfile, *tmp, buff[LINE];
1013  FILE *f;
1014
1015  if (filename==NULL) {
1016    tmp=owl_global_get_homedir(&g);
1017    ourfile=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
1018  } else {
1019    ourfile=owl_strdup(filename);
1020  }
1021 
1022  f=fopen(ourfile, "r");
1023  if (!f) {
1024    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
1025    owl_free(ourfile);
1026    return(-1);
1027  }
1028
1029  while (fgets(buff, LINE, f)!=NULL) {
1030    /* ignore comments, blank lines etc. */
1031    if (buff[0]=='#') continue;
1032    if (buff[0]=='\n') continue;
1033    if (buff[0]=='\0') continue;
1034   
1035    /* strip the \n */
1036    buff[strlen(buff)-1]='\0';
1037   
1038    /* ingore from # on */
1039    tmp=strchr(buff, '#');
1040    if (tmp) tmp[0]='\0';
1041   
1042    /* ingore from SPC */
1043    tmp=strchr(buff, ' ');
1044    if (tmp) tmp[0]='\0';
1045   
1046    /* stick on the local realm. */
1047    if (!strchr(buff, '@')) {
1048      strcat(buff, "@");
1049      strcat(buff, ZGetRealm());
1050    }
1051    owl_list_append_element(in, owl_strdup(buff));
1052  }
1053  fclose(f);
1054  owl_free(ourfile);
1055  return(0);
1056#else
1057  return(-1);
1058#endif
1059}
1060
1061#ifdef HAVE_LIBZEPHYR
1062void owl_zephyr_process_events() {
1063  int zpendcount=0;
1064  ZNotice_t notice;
1065  struct sockaddr_in from;
1066  owl_message *m=NULL;
1067
1068  while(owl_zephyr_zpending() && zpendcount < 20) {
1069    if (owl_zephyr_zpending()) {
1070      ZReceiveNotice(&notice, &from);
1071      zpendcount++;
1072
1073      /* is this an ack from a zephyr we sent? */
1074      if (owl_zephyr_notice_is_ack(&notice)) {
1075        owl_zephyr_handle_ack(&notice);
1076        continue;
1077      }
1078
1079      /* if it's a ping and we're not viewing pings then skip it */
1080      if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
1081        continue;
1082      }
1083
1084      /* create the new message */
1085      m=owl_malloc(sizeof(owl_message));
1086      owl_message_create_from_znotice(m, &notice);
1087
1088      owl_global_messagequeue_addmsg(&g, m);
1089    }
1090  }
1091}
1092
1093#else
1094void owl_zephyr_process_events() {
1095 
1096}
1097#endif
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