source: zephyr.c @ a827529

barnowl_perlaimdebianrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since a827529 was a827529, checked in by Alejandro R. Sedeño <asedeno@mit.edu>, 14 years ago
Merged revisions 812-830 via svnmerge from file:///afs/sipb.mit.edu/project/barnowl/src/svn/trunk ........ r814 | nelhage | 2008-01-09 23:14:20 -0500 (Wed, 09 Jan 2008) | 3 lines r27181@lunatique: nelhage | 2008-01-09 23:13:52 -0500 Implement /part and /names. We don't parse the /names response yet ........ r815 | nelhage | 2008-01-10 00:12:52 -0500 (Thu, 10 Jan 2008) | 1 line Show PART and JOIN messages ........ r816 | nelhage | 2008-01-10 00:13:11 -0500 (Thu, 10 Jan 2008) | 2 lines Show the channel in LOG{IN,OUT} messages ........ r817 | geofft | 2008-01-10 00:32:44 -0500 (Thu, 10 Jan 2008) | 6 lines A (broken) attempt at handling motds and other IRC admin messages Export owl_function_beep() to Perl, and ring the bell on receiving a message containing your nick (on that network) ........ r818 | nelhage | 2008-01-10 01:01:32 -0500 (Thu, 10 Jan 2008) | 2 lines Document the IRC variables ........ r819 | nelhage | 2008-01-10 01:02:06 -0500 (Thu, 10 Jan 2008) | 3 lines Handle recreation of an existing variable better. Copy over the default and docstrings, but preserve the old value. ........ r820 | nelhage | 2008-01-10 01:16:33 -0500 (Thu, 10 Jan 2008) | 2 lines Handle zephyrs to users on non -c message better (fixes #39) ........ r821 | nelhage | 2008-01-10 01:28:59 -0500 (Thu, 10 Jan 2008) | 2 lines sprintf -> snprintf ........ r822 | nelhage | 2008-01-10 01:43:11 -0500 (Thu, 10 Jan 2008) | 2 lines Make :reload-modules work correctly with PARs ........ r823 | nelhage | 2008-01-10 15:47:00 -0500 (Thu, 10 Jan 2008) | 1 line Require 'isprivate' to be a literal 'true', not merely present for a message to be considered private ........ r824 | nelhage | 2008-01-10 15:48:00 -0500 (Thu, 10 Jan 2008) | 2 lines Document (nearly) every public function in the BarnOwl:: namespace ........ r825 | nelhage | 2008-01-10 15:49:27 -0500 (Thu, 10 Jan 2008) | 2 lines `beep' is already a barnowl command, so this binding is superfluous ........ r826 | nelhage | 2008-01-10 15:58:49 -0500 (Thu, 10 Jan 2008) | 1 line strip IRC coloring from IRC messages ........ r827 | nelhage | 2008-01-10 17:22:46 -0500 (Thu, 10 Jan 2008) | 2 lines Document ::Hook and ::Hooks ........ r828 | geofft | 2008-01-10 21:01:27 -0500 (Thu, 10 Jan 2008) | 1 line Move comment around so that perlglue.xs compiles. ........ r829 | nelhage | 2008-01-10 23:25:27 -0500 (Thu, 10 Jan 2008) | 1 line doc nits ........ r830 | nelhage | 2008-01-11 01:38:50 -0500 (Fri, 11 Jan 2008) | 2 lines Handle `nickinuse' errors and disconnects ........
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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
357char *owl_zephyr_get_field_as_utf8(ZNotice_t *n, int j)
358{
359  int i, count, save;
360
361  /* If there's no message here, just run along now */
362  if (n->z_message_len == 0)
363    return(owl_strdup(""));
364
365  count=save=0;
366  for (i = 0; i < n->z_message_len; i++) {
367    if (n->z_message[i]=='\0') {
368      count++;
369      if (count == j) {
370        /* just found the end of the field we're looking for */
371        return(owl_validate_or_convert(n->z_message + save));
372      } else {
373        save = i + 1;
374      }
375    }
376  }
377  /* catch the last field, which might not be null terminated */
378  if (count == j - 1) {
379    char *tmp, *out;
380    tmp = owl_malloc(n->z_message_len-save+5);
381    memcpy(tmp, n->z_message+save, n->z_message_len-save);
382    tmp[n->z_message_len-save]='\0';
383    out = owl_validate_or_convert(tmp);
384    owl_free(tmp);
385    return out;
386  }
387
388  return(owl_strdup(""));
389}
390#else
391char *owl_zephyr_get_field(void *n, int j)
392{
393  return(owl_strdup(""));
394}
395char *owl_zephyr_get_field_as_utf8(ZNotice_t *n, int j)
396{
397  return owl_zephyr_get_field(n, j);
398}
399#endif
400
401
402#ifdef HAVE_LIBZEPHYR
403int owl_zephyr_get_num_fields(ZNotice_t *n)
404{
405  int i, fields;
406
407  if(n->z_message_len == 0)
408    return 0;
409
410  fields=1;
411  for (i=0; i<n->z_message_len; i++) {
412    if (n->z_message[i]=='\0') fields++;
413  }
414 
415  return(fields);
416}
417#else
418int owl_zephyr_get_num_fields(void *n)
419{
420  return(0);
421}
422#endif
423
424#ifdef HAVE_LIBZEPHYR
425/* return a pointer to the message, place the message length in k
426 * caller must free the return
427 */
428char *owl_zephyr_get_message(ZNotice_t *n, owl_message *m)
429{
430  /* don't let ping messages have a body */
431  if (!strcasecmp(n->z_opcode, "ping")) {
432    return(owl_strdup(""));
433  }
434
435  /* deal with MIT NOC messages */
436  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")) {
437    char *msg, *field3, *field4;
438
439    field3 = owl_zephyr_get_field(n, 3);
440    field4 = owl_zephyr_get_field(n, 4);
441
442    msg = owl_sprintf("%s service on %s %s\n%s", n->z_opcode, n->z_class_inst, field3, field4);
443    owl_free(field3);
444    owl_free(field4);
445    if (msg) {
446      return msg;
447    }
448  }
449  /* deal with MIT Discuss messages */
450  else if (!strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3 ($5)\nSubject: $4")) {
451    char *msg, *field1, *field2, *field3, *field4, *field5;
452   
453    field1 = owl_zephyr_get_field(n, 1);
454    field2 = owl_zephyr_get_field(n, 2);
455    field3 = owl_zephyr_get_field(n, 3);
456    field4 = owl_zephyr_get_field(n, 4);
457    field5 = owl_zephyr_get_field(n, 5);
458   
459    msg = owl_sprintf("New transaction [%s] entered in %s\nFrom: %s (%s)\nSubject: %s", field1, field2, field3, field5, field4);
460    owl_free(field1);
461    owl_free(field2);
462    owl_free(field3);
463    owl_free(field4);
464    owl_free(field5);
465    if (msg) {
466      return msg;
467    }
468  }
469  /* deal with MIT Moira messages */
470  else if (!strcasecmp(n->z_default_format, "MOIRA $instance on $fromhost:\n $message\n")) {
471    char *msg, *field1;
472   
473    field1 = owl_zephyr_get_field(n, 1);
474   
475    msg = owl_sprintf("MOIRA %s on %s: %s", n->z_class_inst, owl_message_get_hostname(m), field1);
476    owl_free(field1);
477    if (msg) {
478      return msg;
479    }
480  }
481
482  if (owl_zephyr_get_num_fields(n) == 1) {
483    return(owl_zephyr_get_field(n, 1));
484  }
485  else {
486    return(owl_zephyr_get_field(n, 2));
487  }
488}
489#endif
490
491#ifdef HAVE_LIBZEPHYR
492char *owl_zephyr_get_zsig(ZNotice_t *n, int *k)
493{
494  /* return a pointer to the zsig if there is one */
495
496  /* message length 0? No zsig */
497  if (n->z_message_len==0) {
498    *k=0;
499    return("");
500  }
501
502  /* If there's only one field, no zsig */
503  if (owl_zephyr_get_num_fields(n) == 1) {
504    *k=0;
505    return("");
506  }
507
508  /* Everything else is field 1 */
509  *k=strlen(n->z_message);
510  return(n->z_message);
511}
512#else
513char *owl_zephyr_get_zsig(void *n, int *k)
514{
515  return("");
516}
517#endif
518
519int send_zephyr(char *opcode, char *zsig, char *class, char *instance, char *recipient, char *message)
520{
521#ifdef HAVE_LIBZEPHYR
522  int ret;
523  ZNotice_t notice;
524   
525  memset(&notice, 0, sizeof(notice));
526
527  ZResetAuthentication();
528
529  if (!zsig) zsig="";
530 
531  notice.z_kind=ACKED;
532  notice.z_port=0;
533  notice.z_class=class;
534  notice.z_class_inst=instance;
535  if (!strcmp(recipient, "*") || !strcmp(recipient, "@")) {
536    notice.z_recipient="";
537  } else {
538    notice.z_recipient=recipient;
539  }
540  notice.z_default_format="Class $class, Instance $instance:\nTo: @bold($recipient) at $time $date\nFrom: @bold{$1 <$sender>}\n\n$2";
541  notice.z_sender=NULL;
542  if (opcode) notice.z_opcode=opcode;
543
544  notice.z_message_len=strlen(zsig)+1+strlen(message);
545  notice.z_message=owl_malloc(notice.z_message_len+10);
546  strcpy(notice.z_message, zsig);
547  memcpy(notice.z_message+strlen(zsig)+1, message, strlen(message));
548
549  /* ret=ZSendNotice(&notice, ZAUTH); */
550  ret=ZSrvSendNotice(&notice, ZAUTH, send_zephyr_helper);
551 
552  /* free then check the return */
553  owl_free(notice.z_message);
554  ZFreeNotice(&notice);
555  if (ret!=ZERR_NONE) {
556    owl_function_error("Error sending zephyr");
557    return(ret);
558  }
559  return(0);
560#else
561  return(0);
562#endif
563}
564
565#ifdef HAVE_LIBZEPHYR
566Code_t send_zephyr_helper(ZNotice_t *notice, char *buf, int len, int wait)
567{
568  return(ZSendPacket(buf, len, 0));
569}
570#endif
571
572void send_ping(char *to)
573{
574#ifdef HAVE_LIBZEPHYR
575  send_zephyr("PING", "", "MESSAGE", "PERSONAL", to, "");
576#endif
577}
578
579#ifdef HAVE_LIBZEPHYR
580void owl_zephyr_handle_ack(ZNotice_t *retnotice)
581{
582  char *tmp;
583 
584  /* if it's an HMACK ignore it */
585  if (retnotice->z_kind == HMACK) return;
586
587  if (retnotice->z_kind == SERVNAK) {
588    owl_function_error("Authorization failure sending zephyr");
589  } else if ((retnotice->z_kind != SERVACK) || !retnotice->z_message_len) {
590    owl_function_error("Detected server failure while receiving acknowledgement");
591  } else if (!strcmp(retnotice->z_message, ZSRVACK_SENT)) {
592    if (!strcasecmp(retnotice->z_opcode, "ping")) {
593      return;
594    } else if (!strcasecmp(retnotice->z_class, "message") &&
595               !strcasecmp(retnotice->z_class_inst, "personal")) {
596      tmp=short_zuser(retnotice->z_recipient);
597      owl_function_makemsg("Message sent to %s.", tmp);
598      free(tmp);
599    } else {
600      owl_function_makemsg("Message sent to -c %s -i %s\n", retnotice->z_class, retnotice->z_class_inst);
601    }
602  } else if (!strcmp(retnotice->z_message, ZSRVACK_NOTSENT)) {
603    #define BUFFLEN 1024
604    if (retnotice->z_recipient == NULL
605        || *retnotice->z_recipient == NULL
606        || *retnotice->z_recipient == '@') {
607      char buff[BUFFLEN];
608      owl_function_error("No one subscribed to class %s", retnotice->z_class);
609      snprintf(buff, BUFFLEN, "Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
610      owl_function_adminmsg("", buff);
611    } else {
612      char buff[BUFFLEN];
613      tmp = short_zuser(retnotice->z_recipient);
614      owl_function_error("%s: Not logged in or subscribing.", tmp);
615      snprintf(buff, BUFFLEN, "Could not send message to %s: not logged in or subscribing to", tmp);
616      if(strcmp(retnotice->z_class, "message")) {
617        snprintf(buff, BUFFLEN,
618                 "%s class %s, instance %s.\n", buff,
619                 retnotice->z_class,
620                 retnotice->z_class_inst);
621      } else {
622        snprintf(buff, BUFFLEN,
623                 "%s messages.\n", buff);
624      }
625      owl_function_adminmsg("", buff);
626      owl_log_outgoing_zephyr_error(tmp, buff);
627      owl_free(tmp);
628    }
629  } else {
630    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
631  }
632}
633#else
634void owl_zephyr_handle_ack(void *retnotice)
635{
636}
637#endif
638
639#ifdef HAVE_LIBZEPHYR
640int owl_zephyr_notice_is_ack(ZNotice_t *n)
641{
642  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
643    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
644    return(1);
645  }
646  return(0);
647}
648#else
649int owl_zephyr_notice_is_ack(void *n)
650{
651  return(0);
652}
653#endif
654 
655void owl_zephyr_zaway(owl_message *m)
656{
657#ifdef HAVE_LIBZEPHYR
658  char *tmpbuff, *myuser, *to;
659  owl_message *mout;
660 
661  /* bail if it doesn't look like a message we should reply to.  Some
662   * of this defined by the way zaway(1) works
663   */
664  if (strcasecmp(owl_message_get_class(m), "message")) return;
665  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
666  if (!strcasecmp(owl_message_get_sender(m), "")) return;
667  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
668  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
669  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
670  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
671  if (owl_message_get_attribute_value(m, "isauto")) return;
672
673  if (owl_global_is_smartstrip(&g)) {
674    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
675  } else {
676    to=owl_strdup(owl_message_get_sender(m));
677  }
678
679  send_zephyr("",
680              "Automated reply:",
681              owl_message_get_class(m),
682              owl_message_get_instance(m),
683              to,
684              owl_global_get_zaway_msg(&g));
685
686  myuser=short_zuser(to);
687  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
688    tmpbuff = owl_sprintf("zwrite %s", myuser);
689  } else {
690    tmpbuff = owl_sprintf("zwrite -i %s %s", owl_message_get_instance(m), myuser);
691  }
692  owl_free(myuser);
693  owl_free(to);
694
695  /* display the message as an admin message in the receive window */
696  mout=owl_function_make_outgoing_zephyr(owl_global_get_zaway_msg(&g), tmpbuff, "Automated reply:");
697  owl_global_messagequeue_addmsg(&g, mout);
698  owl_free(tmpbuff);
699#endif
700}
701
702#ifdef HAVE_LIBZEPHYR
703void owl_zephyr_hackaway_cr(ZNotice_t *n)
704{
705  /* replace \r's with ' '.  Gross-ish */
706  int i;
707
708  for (i=0; i<n->z_message_len; i++) {
709    if (n->z_message[i]=='\r') {
710      n->z_message[i]=' ';
711    }
712  }
713}
714#endif
715
716void owl_zephyr_zlocate(char *user, char *out, int auth)
717{
718#ifdef HAVE_LIBZEPHYR
719  int ret, numlocs;
720  int one = 1;
721  ZLocations_t locations;
722  char *myuser;
723 
724  strcpy(out, "");
725  ZResetAuthentication();
726  ret=ZLocateUser(user,&numlocs,auth?ZAUTH:ZNOAUTH);
727  if (ret != ZERR_NONE) {
728    sprintf(out, "Error locating user %s\n", user);
729    return;
730  }
731
732  if (numlocs==0) {
733    myuser=short_zuser(user);
734    sprintf(out, "%s: Hidden or not logged-in\n", myuser);
735    owl_free(myuser);
736    return;
737  }
738   
739  for (;numlocs;numlocs--) {
740    ZGetLocations(&locations,&one);
741    myuser=short_zuser(user);
742    sprintf(out, "%s%s: %s\t%s\t%s\n", out, myuser,
743            locations.host ? locations.host : "?",
744            locations.tty ? locations.tty : "?",
745            locations.time ? locations.time : "?");
746    owl_free(myuser);
747  }
748#endif
749}
750
751void owl_zephyr_addsub(char *filename, char *class, char *inst, char *recip)
752{
753#ifdef HAVE_LIBZEPHYR
754  char *line, subsfile[LINE], buff[LINE];
755  FILE *file;
756
757  line=owl_zephyr_makesubline(class, inst, recip);
758
759  if (filename==NULL) {
760    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
761  } else {
762    strcpy(subsfile, filename);
763  }
764
765  /* if the file already exists, check to see if the sub is already there */
766  file=fopen(subsfile, "r");
767  if (file) {
768    while (fgets(buff, LINE, file)!=NULL) {
769      if (!strcasecmp(buff, line)) {
770        owl_function_error("Subscription already present in %s", subsfile);
771        owl_free(line);
772        fclose(file);
773        return;
774      }
775    }
776    fclose(file);
777  }
778
779  /* if we get here then we didn't find it */
780  file=fopen(subsfile, "a");
781  if (!file) {
782    owl_function_error("Error opening file %s for writing", subsfile);
783    owl_free(line);
784    return;
785  }
786  fputs(line, file);
787  fclose(file);
788  owl_function_makemsg("Subscription added");
789 
790  owl_free(line);
791#endif
792}
793
794void owl_zephyr_delsub(char *filename, char *class, char *inst, char *recip)
795{
796#ifdef HAVE_LIBZEPHYR
797  char *line, *subsfile;
798 
799  line=owl_zephyr_makesubline(class, inst, recip);
800  line[strlen(line)-1]='\0';
801
802  if (!filename) {
803    subsfile=owl_sprintf("%s/.zephyr.subs", owl_global_get_homedir(&g));
804  } else {
805    subsfile=owl_strdup(filename);
806  }
807 
808  owl_util_file_deleteline(subsfile, line, 1);
809  owl_free(subsfile);
810  owl_free(line);
811  owl_function_makemsg("Subscription removed");
812#endif
813}
814
815/* caller must free the return */
816char *owl_zephyr_makesubline(char *class, char *inst, char *recip)
817{
818  char *out;
819
820  out=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+30);
821  sprintf(out, "%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
822  return(out);
823}
824
825
826void owl_zephyr_zlog_in(void)
827{
828#ifdef HAVE_LIBZEPHYR
829  char *exposure, *eset;
830  int ret;
831
832  ZResetAuthentication();
833   
834  eset=EXPOSE_REALMVIS;
835  exposure=ZGetVariable("exposure");
836  if (exposure==NULL) {
837    eset=EXPOSE_REALMVIS;
838  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
839    eset = EXPOSE_NONE;
840  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
841    eset = EXPOSE_OPSTAFF;
842  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
843    eset = EXPOSE_REALMVIS;
844  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
845    eset = EXPOSE_REALMANN;
846  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
847    eset = EXPOSE_NETVIS;
848  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
849    eset = EXPOSE_NETANN;
850  }
851   
852  ret=ZSetLocation(eset);
853  if (ret != ZERR_NONE) {
854    /*
855      char buff[LINE];
856      sprintf(buff, "Error setting location: %s", error_message(ret));
857      owl_function_makemsg(buff);
858    */
859  }
860#endif
861}
862
863void owl_zephyr_zlog_out(void)
864{
865#ifdef HAVE_LIBZEPHYR
866  int ret;
867
868  ZResetAuthentication();
869  ret=ZUnsetLocation();
870  if (ret != ZERR_NONE) {
871    /*
872      char buff[LINE];
873      sprintf(buff, "Error unsetting location: %s", error_message(ret));
874      owl_function_makemsg(buff);
875    */
876  }
877#endif
878}
879
880void owl_zephyr_addbuddy(char *name)
881{
882  char *filename;
883  FILE *file;
884 
885  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
886  file=fopen(filename, "a");
887  owl_free(filename);
888  if (!file) {
889    owl_function_error("Error opening zephyr buddy file for append");
890    return;
891  }
892  fprintf(file, "%s\n", name);
893  fclose(file);
894}
895
896void owl_zephyr_delbuddy(char *name)
897{
898  char *filename;
899
900  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
901  owl_util_file_deleteline(filename, name, 0);
902  owl_free(filename);
903}
904
905/* return auth string */
906#ifdef HAVE_LIBZEPHYR
907char *owl_zephyr_get_authstr(ZNotice_t *n)
908{
909
910  if (!n) return("UNKNOWN");
911
912  if (n->z_auth == ZAUTH_FAILED) {
913    return ("FAILED");
914  } else if (n->z_auth == ZAUTH_NO) {
915    return ("NO");
916  } else if (n->z_auth == ZAUTH_YES) {
917    return ("YES");
918  } else {
919    return ("UNKNOWN");
920  }           
921}
922#else
923char *owl_zephyr_get_authstr(void *n)
924{
925  return("");
926}
927#endif
928
929/* Returns a buffer of subscriptions or an error message.  Caller must
930 * free the return.
931 */
932char *owl_zephyr_getsubs()
933{
934#ifdef HAVE_LIBZEPHYR
935  int ret, num, i, one;
936  ZSubscription_t sub;
937  char *out, *tmpbuff;
938  one=1;
939
940  ret=ZRetrieveSubscriptions(0, &num);
941  if (ret==ZERR_TOOMANYSUBS) {
942    return(owl_strdup("Zephyr: too many subscriptions\n"));
943  } else if (ret) {
944    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
945  }
946
947  out=owl_malloc(num*500);
948  tmpbuff=owl_malloc(num*500);
949  strcpy(out, "");
950  for (i=0; i<num; i++) {
951    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
952      owl_free(out);
953      owl_free(tmpbuff);
954      ZFlushSubscriptions();
955      out=owl_strdup("Error while getting subscriptions\n");
956      return(out);
957    } else {
958      sprintf(tmpbuff, "<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
959      strcpy(out, tmpbuff);
960    }
961  }
962
963  owl_free(tmpbuff);
964  ZFlushSubscriptions();
965  return(out);
966#else
967  return(owl_strdup("Zephyr not available"));
968#endif
969}
970
971char *owl_zephyr_get_variable(char *var)
972{
973#ifdef HAVE_LIBZEPHYR
974  return(ZGetVariable(var));
975#else
976  return("");
977#endif
978}
979
980void owl_zephyr_set_locationinfo(char *host, char *val)
981{
982#ifdef HAVE_LIBZEPHYR
983  ZInitLocationInfo(host, val);
984#endif
985}
986 
987/* Strip a local realm fron the zephyr user name.
988 * The caller must free the return
989 */
990char *short_zuser(char *in)
991{
992  char *out, *ptr;
993
994  out=owl_strdup(in);
995  ptr=strchr(out, '@');
996  if (ptr) {
997    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
998      *ptr='\0';
999    }
1000  }
1001  return(out);
1002}
1003
1004/* Append a local realm to the zephyr user name if necessary.
1005 * The caller must free the return.
1006 */
1007char *long_zuser(char *in)
1008{
1009  if (strchr(in, '@')) {
1010    return(owl_strdup(in));
1011  }
1012  return(owl_sprintf("%s@%s", in, owl_zephyr_get_realm()));
1013}
1014
1015/* strip out the instance from a zsender's principal.  Preserves the
1016 * realm if present.  daemon.webzephyr is a special case.  The
1017 * caller must free the return
1018 */
1019char *owl_zephyr_smartstripped_user(char *in)
1020{
1021  char *ptr, *realm, *out;
1022
1023  out=owl_strdup(in);
1024
1025  /* bail immeaditly if we don't have to do any work */
1026  ptr=strchr(in, '.');
1027  if (!strchr(in, '/') && !ptr) {
1028    /* no '/' and no '.' */
1029    return(out);
1030  }
1031  if (ptr && strchr(in, '@') && (ptr > strchr(in, '@'))) {
1032    /* There's a '.' but it's in the realm */
1033    return(out);
1034  }
1035  if (!strncasecmp(in, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
1036    return(out);
1037  }
1038
1039  /* remove the realm from ptr, but hold on to it */
1040  realm=strchr(out, '@');
1041  if (realm) realm[0]='\0';
1042
1043  /* strip */
1044  ptr=strchr(out, '.');
1045  if (!ptr) ptr=strchr(out, '/');
1046  ptr[0]='\0';
1047
1048  /* reattach the realm if we had one */
1049  if (realm) {
1050    strcat(out, "@");
1051    strcat(out, realm+1);
1052  }
1053
1054  return(out);
1055}
1056
1057/* read the list of users in 'filename' as a .anyone file, and put the
1058 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
1059 * use the default .anyone file in the users home directory.  Returns
1060 * -1 on failure, 0 on success.
1061 */
1062int owl_zephyr_get_anyone_list(owl_list *in, char *filename)
1063{
1064#ifdef HAVE_LIBZEPHYR
1065  char *ourfile, *tmp, buff[LINE];
1066  FILE *f;
1067
1068  if (filename==NULL) {
1069    tmp=owl_global_get_homedir(&g);
1070    ourfile=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
1071  } else {
1072    ourfile=owl_strdup(filename);
1073  }
1074 
1075  f=fopen(ourfile, "r");
1076  if (!f) {
1077    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
1078    owl_free(ourfile);
1079    return(-1);
1080  }
1081
1082  while (fgets(buff, LINE, f)!=NULL) {
1083    /* ignore comments, blank lines etc. */
1084    if (buff[0]=='#') continue;
1085    if (buff[0]=='\n') continue;
1086    if (buff[0]=='\0') continue;
1087   
1088    /* strip the \n */
1089    buff[strlen(buff)-1]='\0';
1090   
1091    /* ingore from # on */
1092    tmp=strchr(buff, '#');
1093    if (tmp) tmp[0]='\0';
1094   
1095    /* ingore from SPC */
1096    tmp=strchr(buff, ' ');
1097    if (tmp) tmp[0]='\0';
1098   
1099    /* stick on the local realm. */
1100    if (!strchr(buff, '@')) {
1101      strcat(buff, "@");
1102      strcat(buff, ZGetRealm());
1103    }
1104    owl_list_append_element(in, owl_strdup(buff));
1105  }
1106  fclose(f);
1107  owl_free(ourfile);
1108  return(0);
1109#else
1110  return(-1);
1111#endif
1112}
1113
1114#ifdef HAVE_LIBZEPHYR
1115void owl_zephyr_process_events() {
1116  int zpendcount=0;
1117  ZNotice_t notice;
1118  struct sockaddr_in from;
1119  owl_message *m=NULL;
1120
1121  while(owl_zephyr_zpending() && zpendcount < 20) {
1122    if (owl_zephyr_zpending()) {
1123      ZReceiveNotice(&notice, &from);
1124      zpendcount++;
1125
1126      /* is this an ack from a zephyr we sent? */
1127      if (owl_zephyr_notice_is_ack(&notice)) {
1128        owl_zephyr_handle_ack(&notice);
1129        continue;
1130      }
1131
1132      /* if it's a ping and we're not viewing pings then skip it */
1133      if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
1134        continue;
1135      }
1136
1137      /* create the new message */
1138      m=owl_malloc(sizeof(owl_message));
1139      owl_message_create_from_znotice(m, &notice);
1140
1141      owl_global_messagequeue_addmsg(&g, m);
1142    }
1143  }
1144}
1145
1146#else
1147void owl_zephyr_process_events() {
1148 
1149}
1150#endif
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