source: zephyr.c @ c10fef0

barnowl_perlaimdebianrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since c10fef0 was 6201646, checked in by Alejandro R. Sedeño <asedeno@mit.edu>, 13 years ago
Fixing bug encountered when last field was not null-terminated.
  • Property mode set to 100644
File size: 26.3 KB
Line 
1#include <stdlib.h>
2#include <unistd.h>
3#include <sys/types.h>
4#include <sys/wait.h>
5#include <sys/stat.h>
6#include <string.h>
7#include "owl.h"
8
9static const char fileIdent[] = "$Id$";
10
11#ifdef HAVE_LIBZEPHYR
12Code_t ZResetAuthentication();
13#endif
14
15int owl_zephyr_initialize()
16{
17#ifdef HAVE_LIBZEPHYR
18  int ret;
19 
20  if ((ret = ZInitialize()) != ZERR_NONE) {
21    com_err("owl",ret,"while initializing");
22    return(1);
23  }
24  if ((ret = ZOpenPort(NULL)) != ZERR_NONE) {
25    com_err("owl",ret,"while opening port");
26    return(1);
27  }
28#endif
29  return(0);
30}
31
32
33int owl_zephyr_shutdown()
34{
35#ifdef HAVE_LIBZEPHYR
36  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    if (strcasecmp(retnotice->z_class, "message")) {
604      char buff[1024];
605      owl_function_error("No one subscribed to class class %s", retnotice->z_class);
606      sprintf(buff, "Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
607      owl_function_adminmsg("", buff);
608    } else {
609      char buff[1024];
610      tmp = short_zuser(retnotice->z_recipient);
611      owl_function_error("%s: Not logged in or subscribing to messages.", tmp);
612      sprintf(buff, "Could not send message to %s: not logged in or subscribing to messages.\n", tmp);
613      owl_function_adminmsg("", buff);
614      owl_log_outgoing_zephyr_error(tmp, buff);
615      owl_free(tmp);
616    }
617  } else {
618    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
619  }
620}
621#else
622void owl_zephyr_handle_ack(void *retnotice)
623{
624}
625#endif
626
627#ifdef HAVE_LIBZEPHYR
628int owl_zephyr_notice_is_ack(ZNotice_t *n)
629{
630  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
631    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
632    return(1);
633  }
634  return(0);
635}
636#else
637int owl_zephyr_notice_is_ack(void *n)
638{
639  return(0);
640}
641#endif
642 
643void owl_zephyr_zaway(owl_message *m)
644{
645#ifdef HAVE_LIBZEPHYR
646  char *tmpbuff, *myuser, *to;
647  owl_message *mout;
648 
649  /* bail if it doesn't look like a message we should reply to.  Some
650   * of this defined by the way zaway(1) works
651   */
652  if (strcasecmp(owl_message_get_class(m), "message")) return;
653  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
654  if (!strcasecmp(owl_message_get_sender(m), "")) return;
655  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
656  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
657  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
658  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
659  if (owl_message_get_attribute_value(m, "isauto")) return;
660
661  if (owl_global_is_smartstrip(&g)) {
662    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
663  } else {
664    to=owl_strdup(owl_message_get_sender(m));
665  }
666
667  send_zephyr("",
668              "Automated reply:",
669              owl_message_get_class(m),
670              owl_message_get_instance(m),
671              to,
672              owl_global_get_zaway_msg(&g));
673
674  myuser=short_zuser(to);
675  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
676    tmpbuff = owl_sprintf("zwrite %s", myuser);
677  } else {
678    tmpbuff = owl_sprintf("zwrite -i %s %s", owl_message_get_instance(m), myuser);
679  }
680  owl_free(myuser);
681  owl_free(to);
682
683  /* display the message as an admin message in the receive window */
684  mout=owl_function_make_outgoing_zephyr(owl_global_get_zaway_msg(&g), tmpbuff, "Automated reply:");
685  owl_global_messagequeue_addmsg(&g, mout);
686  owl_free(tmpbuff);
687#endif
688}
689
690#ifdef HAVE_LIBZEPHYR
691void owl_zephyr_hackaway_cr(ZNotice_t *n)
692{
693  /* replace \r's with ' '.  Gross-ish */
694  int i;
695
696  for (i=0; i<n->z_message_len; i++) {
697    if (n->z_message[i]=='\r') {
698      n->z_message[i]=' ';
699    }
700  }
701}
702#endif
703
704void owl_zephyr_zlocate(char *user, char *out, int auth)
705{
706#ifdef HAVE_LIBZEPHYR
707  int ret, numlocs;
708  int one = 1;
709  ZLocations_t locations;
710  char *myuser;
711 
712  strcpy(out, "");
713  ZResetAuthentication();
714  ret=ZLocateUser(user,&numlocs,auth?ZAUTH:ZNOAUTH);
715  if (ret != ZERR_NONE) {
716    sprintf(out, "Error locating user %s\n", user);
717    return;
718  }
719
720  if (numlocs==0) {
721    myuser=short_zuser(user);
722    sprintf(out, "%s: Hidden or not logged-in\n", myuser);
723    owl_free(myuser);
724    return;
725  }
726   
727  for (;numlocs;numlocs--) {
728    ZGetLocations(&locations,&one);
729    myuser=short_zuser(user);
730    sprintf(out, "%s%s: %s\t%s\t%s\n", out, myuser,
731            locations.host ? locations.host : "?",
732            locations.tty ? locations.tty : "?",
733            locations.time ? locations.time : "?");
734    owl_free(myuser);
735  }
736#endif
737}
738
739void owl_zephyr_addsub(char *filename, char *class, char *inst, char *recip)
740{
741#ifdef HAVE_LIBZEPHYR
742  char *line, subsfile[LINE], buff[LINE];
743  FILE *file;
744
745  line=owl_zephyr_makesubline(class, inst, recip);
746
747  if (filename==NULL) {
748    sprintf(subsfile, "%s/%s", owl_global_get_homedir(&g), ".zephyr.subs");
749  } else {
750    strcpy(subsfile, filename);
751  }
752
753  /* if the file already exists, check to see if the sub is already there */
754  file=fopen(subsfile, "r");
755  if (file) {
756    while (fgets(buff, LINE, file)!=NULL) {
757      if (!strcasecmp(buff, line)) {
758        owl_function_error("Subscription already present in %s", subsfile);
759        owl_free(line);
760        fclose(file);
761        return;
762      }
763    }
764    fclose(file);
765  }
766
767  /* if we get here then we didn't find it */
768  file=fopen(subsfile, "a");
769  if (!file) {
770    owl_function_error("Error opening file %s for writing", subsfile);
771    owl_free(line);
772    return;
773  }
774  fputs(line, file);
775  fclose(file);
776  owl_function_makemsg("Subscription added");
777 
778  owl_free(line);
779#endif
780}
781
782void owl_zephyr_delsub(char *filename, char *class, char *inst, char *recip)
783{
784#ifdef HAVE_LIBZEPHYR
785  char *line, *subsfile;
786 
787  line=owl_zephyr_makesubline(class, inst, recip);
788  line[strlen(line)-1]='\0';
789
790  if (!filename) {
791    subsfile=owl_sprintf("%s/.zephyr.subs", owl_global_get_homedir(&g));
792  } else {
793    subsfile=owl_strdup(filename);
794  }
795 
796  owl_util_file_deleteline(subsfile, line, 1);
797  owl_free(subsfile);
798  owl_free(line);
799  owl_function_makemsg("Subscription removed");
800#endif
801}
802
803/* caller must free the return */
804char *owl_zephyr_makesubline(char *class, char *inst, char *recip)
805{
806  char *out;
807
808  out=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+30);
809  sprintf(out, "%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
810  return(out);
811}
812
813
814void owl_zephyr_zlog_in(void)
815{
816#ifdef HAVE_LIBZEPHYR
817  char *exposure, *eset;
818  int ret;
819
820  ZResetAuthentication();
821   
822  eset=EXPOSE_REALMVIS;
823  exposure=ZGetVariable("exposure");
824  if (exposure==NULL) {
825    eset=EXPOSE_REALMVIS;
826  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
827    eset = EXPOSE_NONE;
828  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
829    eset = EXPOSE_OPSTAFF;
830  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
831    eset = EXPOSE_REALMVIS;
832  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
833    eset = EXPOSE_REALMANN;
834  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
835    eset = EXPOSE_NETVIS;
836  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
837    eset = EXPOSE_NETANN;
838  }
839   
840  ret=ZSetLocation(eset);
841  if (ret != ZERR_NONE) {
842    /*
843      char buff[LINE];
844      sprintf(buff, "Error setting location: %s", error_message(ret));
845      owl_function_makemsg(buff);
846    */
847  }
848#endif
849}
850
851void owl_zephyr_zlog_out(void)
852{
853#ifdef HAVE_LIBZEPHYR
854  int ret;
855
856  ZResetAuthentication();
857  ret=ZUnsetLocation();
858  if (ret != ZERR_NONE) {
859    /*
860      char buff[LINE];
861      sprintf(buff, "Error unsetting location: %s", error_message(ret));
862      owl_function_makemsg(buff);
863    */
864  }
865#endif
866}
867
868void owl_zephyr_addbuddy(char *name)
869{
870  char *filename;
871  FILE *file;
872 
873  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
874  file=fopen(filename, "a");
875  owl_free(filename);
876  if (!file) {
877    owl_function_error("Error opening zephyr buddy file for append");
878    return;
879  }
880  fprintf(file, "%s\n", name);
881  fclose(file);
882}
883
884void owl_zephyr_delbuddy(char *name)
885{
886  char *filename;
887
888  filename=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
889  owl_util_file_deleteline(filename, name, 0);
890  owl_free(filename);
891}
892
893/* return auth string */
894#ifdef HAVE_LIBZEPHYR
895char *owl_zephyr_get_authstr(ZNotice_t *n)
896{
897
898  if (!n) return("UNKNOWN");
899
900  if (n->z_auth == ZAUTH_FAILED) {
901    return ("FAILED");
902  } else if (n->z_auth == ZAUTH_NO) {
903    return ("NO");
904  } else if (n->z_auth == ZAUTH_YES) {
905    return ("YES");
906  } else {
907    return ("UNKNOWN");
908  }           
909}
910#else
911char *owl_zephyr_get_authstr(void *n)
912{
913  return("");
914}
915#endif
916
917/* Returns a buffer of subscriptions or an error message.  Caller must
918 * free the return.
919 */
920char *owl_zephyr_getsubs()
921{
922#ifdef HAVE_LIBZEPHYR
923  int ret, num, i, one;
924  ZSubscription_t sub;
925  char *out, *tmpbuff;
926  one=1;
927
928  ret=ZRetrieveSubscriptions(0, &num);
929  if (ret==ZERR_TOOMANYSUBS) {
930    return(owl_strdup("Zephyr: too many subscriptions\n"));
931  } else if (ret) {
932    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
933  }
934
935  out=owl_malloc(num*500);
936  tmpbuff=owl_malloc(num*500);
937  strcpy(out, "");
938  for (i=0; i<num; i++) {
939    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
940      owl_free(out);
941      owl_free(tmpbuff);
942      ZFlushSubscriptions();
943      out=owl_strdup("Error while getting subscriptions\n");
944      return(out);
945    } else {
946      sprintf(tmpbuff, "<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
947      strcpy(out, tmpbuff);
948    }
949  }
950
951  owl_free(tmpbuff);
952  ZFlushSubscriptions();
953  return(out);
954#else
955  return(owl_strdup("Zephyr not available"));
956#endif
957}
958
959char *owl_zephyr_get_variable(char *var)
960{
961#ifdef HAVE_LIBZEPHYR
962  return(ZGetVariable(var));
963#else
964  return("");
965#endif
966}
967
968void owl_zephyr_set_locationinfo(char *host, char *val)
969{
970#ifdef HAVE_LIBZEPHYR
971  ZInitLocationInfo(host, val);
972#endif
973}
974 
975/* Strip a local realm fron the zephyr user name.
976 * The caller must free the return
977 */
978char *short_zuser(char *in)
979{
980  char *out, *ptr;
981
982  out=owl_strdup(in);
983  ptr=strchr(out, '@');
984  if (ptr) {
985    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
986      *ptr='\0';
987    }
988  }
989  return(out);
990}
991
992/* Append a local realm to the zephyr user name if necessary.
993 * The caller must free the return.
994 */
995char *long_zuser(char *in)
996{
997  if (strchr(in, '@')) {
998    return(owl_strdup(in));
999  }
1000  return(owl_sprintf("%s@%s", in, owl_zephyr_get_realm()));
1001}
1002
1003/* strip out the instance from a zsender's principal.  Preserves the
1004 * realm if present.  daemon.webzephyr is a special case.  The
1005 * caller must free the return
1006 */
1007char *owl_zephyr_smartstripped_user(char *in)
1008{
1009  char *ptr, *realm, *out;
1010
1011  out=owl_strdup(in);
1012
1013  /* bail immeaditly if we don't have to do any work */
1014  ptr=strchr(in, '.');
1015  if (!strchr(in, '/') && !ptr) {
1016    /* no '/' and no '.' */
1017    return(out);
1018  }
1019  if (ptr && strchr(in, '@') && (ptr > strchr(in, '@'))) {
1020    /* There's a '.' but it's in the realm */
1021    return(out);
1022  }
1023  if (!strncasecmp(in, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
1024    return(out);
1025  }
1026
1027  /* remove the realm from ptr, but hold on to it */
1028  realm=strchr(out, '@');
1029  if (realm) realm[0]='\0';
1030
1031  /* strip */
1032  ptr=strchr(out, '.');
1033  if (!ptr) ptr=strchr(out, '/');
1034  ptr[0]='\0';
1035
1036  /* reattach the realm if we had one */
1037  if (realm) {
1038    strcat(out, "@");
1039    strcat(out, realm+1);
1040  }
1041
1042  return(out);
1043}
1044
1045/* read the list of users in 'filename' as a .anyone file, and put the
1046 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
1047 * use the default .anyone file in the users home directory.  Returns
1048 * -1 on failure, 0 on success.
1049 */
1050int owl_zephyr_get_anyone_list(owl_list *in, char *filename)
1051{
1052#ifdef HAVE_LIBZEPHYR
1053  char *ourfile, *tmp, buff[LINE];
1054  FILE *f;
1055
1056  if (filename==NULL) {
1057    tmp=owl_global_get_homedir(&g);
1058    ourfile=owl_sprintf("%s/.anyone", owl_global_get_homedir(&g));
1059  } else {
1060    ourfile=owl_strdup(filename);
1061  }
1062 
1063  f=fopen(ourfile, "r");
1064  if (!f) {
1065    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
1066    owl_free(ourfile);
1067    return(-1);
1068  }
1069
1070  while (fgets(buff, LINE, f)!=NULL) {
1071    /* ignore comments, blank lines etc. */
1072    if (buff[0]=='#') continue;
1073    if (buff[0]=='\n') continue;
1074    if (buff[0]=='\0') continue;
1075   
1076    /* strip the \n */
1077    buff[strlen(buff)-1]='\0';
1078   
1079    /* ingore from # on */
1080    tmp=strchr(buff, '#');
1081    if (tmp) tmp[0]='\0';
1082   
1083    /* ingore from SPC */
1084    tmp=strchr(buff, ' ');
1085    if (tmp) tmp[0]='\0';
1086   
1087    /* stick on the local realm. */
1088    if (!strchr(buff, '@')) {
1089      strcat(buff, "@");
1090      strcat(buff, ZGetRealm());
1091    }
1092    owl_list_append_element(in, owl_strdup(buff));
1093  }
1094  fclose(f);
1095  owl_free(ourfile);
1096  return(0);
1097#else
1098  return(-1);
1099#endif
1100}
1101
1102#ifdef HAVE_LIBZEPHYR
1103void owl_zephyr_process_events() {
1104  int zpendcount=0;
1105  ZNotice_t notice;
1106  struct sockaddr_in from;
1107  owl_message *m=NULL;
1108
1109  while(owl_zephyr_zpending() && zpendcount < 20) {
1110    if (owl_zephyr_zpending()) {
1111      ZReceiveNotice(&notice, &from);
1112      zpendcount++;
1113
1114      /* is this an ack from a zephyr we sent? */
1115      if (owl_zephyr_notice_is_ack(&notice)) {
1116        owl_zephyr_handle_ack(&notice);
1117        continue;
1118      }
1119
1120      /* if it's a ping and we're not viewing pings then skip it */
1121      if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
1122        continue;
1123      }
1124
1125      /* create the new message */
1126      m=owl_malloc(sizeof(owl_message));
1127      owl_message_create_from_znotice(m, &notice);
1128
1129      owl_global_messagequeue_addmsg(&g, m);
1130    }
1131  }
1132}
1133
1134#else
1135void owl_zephyr_process_events() {
1136 
1137}
1138#endif
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