source: zephyr.c @ 8ab1f28

release-1.7release-1.8release-1.9
Last change on this file since 8ab1f28 was 8ab1f28, checked in by Nelson Elhage <nelhage@mit.edu>, 11 years ago
zephyr.c: Handle errors from ZPending and ZReceiveNotice. It is easy for a remote user to cause these functions to return errors by sending us corrupt zgrams, so basically the only safe thing to do is to ignore the errors.
  • Property mode set to 100644
File size: 36.4 KB
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[7d4fbcd]1#include <stdlib.h>
2#include <unistd.h>
3#include <sys/types.h>
4#include <sys/wait.h>
[4357be8]5#include <sys/stat.h>
[7d4fbcd]6#include <string.h>
7#include "owl.h"
8
[fea7992]9#ifdef HAVE_LIBZEPHYR
[a5e7ed6]10static GList *deferred_subs = NULL;
[79d7d98]11
[a5e7ed6]12typedef struct _owl_sub_list {                            /* noproto */
13  ZSubscription_t *subs;
14  int nsubs;
15} owl_sub_list;
16
[c79a047]17Code_t ZResetAuthentication(void);
[09489b89]18#endif
[8262340]19
[02f55dc]20#define HM_SVC_FALLBACK         htons((unsigned short) 2104)
21
[6ea3890]22static char *owl_zephyr_dotfile(const char *name, const char *input)
23{
24  if (input != NULL)
25    return owl_strdup(input);
26  else
27    return owl_sprintf("%s/%s", owl_global_get_homedir(&g), name);
28}
29
[52a0f14]30#ifdef HAVE_LIBZEPHYR
[c79a047]31void owl_zephyr_initialize(void)
[52a0f14]32{
33  int ret;
[02f55dc]34  struct servent *sp;
35  struct sockaddr_in sin;
36  ZNotice_t req;
37  Code_t code;
[52a0f14]38
39  /*
40   * Code modified from libzephyr's ZhmStat.c
41   *
42   * Modified to add the fd to our select loop, rather than hanging
43   * until we get an ack.
44   */
45
46  if ((ret = ZOpenPort(NULL)) != ZERR_NONE) {
47    owl_function_error("Error opening Zephyr port: %s", error_message(ret));
48    return;
49  }
[02f55dc]50
[4d86e06]51  (void) memset(&sin, 0, sizeof(struct sockaddr_in));
[02f55dc]52
53  sp = getservbyname(HM_SVCNAME, "udp");
54
55  sin.sin_port = (sp) ? sp->s_port : HM_SVC_FALLBACK;
56  sin.sin_family = AF_INET;
57
58  sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
59
[4d86e06]60  (void) memset(&req, 0, sizeof(req));
[02f55dc]61  req.z_kind = STAT;
62  req.z_port = 0;
[712caac]63  req.z_class = zstr(HM_STAT_CLASS);
64  req.z_class_inst = zstr(HM_STAT_CLIENT);
65  req.z_opcode = zstr(HM_GIMMESTATS);
66  req.z_sender = zstr("");
67  req.z_recipient = zstr("");
68  req.z_default_format = zstr("");
[02f55dc]69  req.z_message_len = 0;
[52a0f14]70
71  if ((code = ZSetDestAddr(&sin)) != ZERR_NONE) {
72    owl_function_error("Initializing Zephyr: %s", error_message(code));
73    return;
74  }
75
76  if ((code = ZSendNotice(&req, ZNOAUTH)) != ZERR_NONE) {
77    owl_function_error("Initializing Zephyr: %s", error_message(code));
78    return;
79  }
80
[18fdd5f9]81  owl_select_add_io_dispatch(ZGetFD(), OWL_IO_READ|OWL_IO_EXCEPT, &owl_zephyr_finish_initialization, NULL, NULL);
[02f55dc]82}
83
[18fdd5f9]84void owl_zephyr_finish_initialization(const owl_io_dispatch *d, void *data) {
[52a0f14]85  Code_t code;
[df569c5]86  char *perl;
[52a0f14]87
[18fdd5f9]88  owl_select_remove_io_dispatch(d);
[52a0f14]89
90  ZClosePort();
91
92  if ((code = ZInitialize()) != ZERR_NONE) {
93    owl_function_error("Initializing Zephyr: %s", error_message(code));
94    return;
95  }
96
97  if ((code = ZOpenPort(NULL)) != ZERR_NONE) {
98    owl_function_error("Initializing Zephyr: %s", error_message(code));
99    return;
100  }
101
[18fdd5f9]102  owl_select_add_io_dispatch(ZGetFD(), OWL_IO_READ|OWL_IO_EXCEPT, &owl_zephyr_process_events, NULL, NULL);
103
[52a0f14]104  owl_global_set_havezephyr(&g);
105
106  if(g.load_initial_subs) {
107    owl_zephyr_load_initial_subs();
108  }
[a5e7ed6]109  while(deferred_subs != NULL) {
110    owl_sub_list *subs = deferred_subs->data;
111    owl_function_debugmsg("Loading %d deferred subs.", subs->nsubs);
112    owl_zephyr_loadsubs_helper(subs->subs, subs->nsubs);
113    deferred_subs = g_list_delete_link(deferred_subs, deferred_subs);
114    owl_free(subs);
115  }
[619d864]116
117  /* zlog in if we need to */
118  if (owl_global_is_startuplogin(&g)) {
119    owl_function_debugmsg("startup: doing zlog in");
120    owl_zephyr_zlog_in();
121  }
[27964fe]122  /* check pseudo-logins if we need to */
123  if (owl_global_is_pseudologins(&g)) {
124    owl_function_debugmsg("startup: checking pseudo-logins");
125    owl_function_zephyr_buddy_check(0);
126  }
[df569c5]127
[12e291a]128  perl = owl_perlconfig_execute("BarnOwl::Zephyr::_zephyr_startup()");
129  owl_free(perl);
130
131  owl_select_add_pre_select_action(owl_zephyr_pre_select_action, NULL, NULL);
[52a0f14]132}
133
[c79a047]134void owl_zephyr_load_initial_subs(void) {
[7451af9]135  int ret_sd, ret_bd, ret_u;
[52a0f14]136
137  owl_function_debugmsg("startup: loading initial zephyr subs");
138
139  /* load default subscriptions */
[7451af9]140  ret_sd = owl_zephyr_loaddefaultsubs();
141
142  /* load Barnowl default subscriptions */
143  ret_bd = owl_zephyr_loadbarnowldefaultsubs();
[52a0f14]144
145  /* load subscriptions from subs file */
[7451af9]146  ret_u = owl_zephyr_loadsubs(NULL, 0);
[52a0f14]147
[7451af9]148  if (ret_sd || ret_bd || ret_u) {
[52a0f14]149    owl_function_error("Error loading zephyr subscriptions");
[7451af9]150  } else if (ret_u!=-1) {
[52a0f14]151    owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
152  }
153
154  /* load login subscriptions */
155  if (owl_global_is_loginsubs(&g)) {
156    owl_function_debugmsg("startup: loading login subs");
157    owl_function_loadloginsubs(NULL);
158  }
159}
160#else
[c79a047]161void owl_zephyr_initialize(void)
[52a0f14]162{
163}
[02f55dc]164#endif
165
[52a0f14]166
[c79a047]167int owl_zephyr_shutdown(void)
[09489b89]168{
169#ifdef HAVE_LIBZEPHYR
[bfbf590]170  if(owl_global_is_havezephyr(&g)) {
171    unsuball();
172    ZClosePort();
173  }
[09489b89]174#endif
[32ad44d]175  return 0;
[be0a79f]176}
177
[c79a047]178int owl_zephyr_zpending(void)
[be0a79f]179{
180#ifdef HAVE_LIBZEPHYR
[8ab1f28]181  Code_t code;
182  if(owl_global_is_havezephyr(&g)) {
183    if((code = ZPending()) < 0) {
184      owl_function_debugmsg("Error (%s) in ZPending()\n",
185                            error_message(code));
186      return 0;
187    }
188    return code;
189  }
[be0a79f]190#endif
[32ad44d]191  return 0;
[be0a79f]192}
193
[c79a047]194const char *owl_zephyr_get_realm(void)
[09489b89]195{
196#ifdef HAVE_LIBZEPHYR
[32ad44d]197  if (owl_global_is_havezephyr(&g))
198    return(ZGetRealm());
[09489b89]199#endif
[32ad44d]200  return "";
[09489b89]201}
202
[c79a047]203const char *owl_zephyr_get_sender(void)
[09489b89]204{
205#ifdef HAVE_LIBZEPHYR
[32ad44d]206  if (owl_global_is_havezephyr(&g))
207    return(ZGetSender());
[09489b89]208#endif
[32ad44d]209  return "";
[09489b89]210}
211
[f6050ee]212#ifdef HAVE_LIBZEPHYR
[93e883d]213int owl_zephyr_loadsubs_helper(ZSubscription_t subs[], int count)
214{
[18105584]215  int ret = 0;
[a5e7ed6]216  if (owl_global_is_havezephyr(&g)) {
217    int i;
218    /* sub without defaults */
219    if (ZSubscribeToSansDefaults(subs,count,0) != ZERR_NONE) {
220      owl_function_error("Error subscribing to zephyr notifications.");
221      ret=-2;
222    }
[93e883d]223
[a5e7ed6]224    /* free stuff */
225    for (i=0; i<count; i++) {
226      owl_free(subs[i].zsub_class);
227      owl_free(subs[i].zsub_classinst);
228      owl_free(subs[i].zsub_recipient);
229    }
[bb2c60d]230
[a5e7ed6]231    owl_free(subs);
232  } else {
233    owl_sub_list *s = owl_malloc(sizeof(owl_sub_list));
234    s->subs = subs;
235    s->nsubs = count;
236    deferred_subs = g_list_append(deferred_subs, s);
237  }
[d21efbc]238
[93e883d]239  return ret;
240}
[f6050ee]241#endif
[93e883d]242
[7451af9]243/* Load zephyr subscriptions from 'filename'.  If 'filename' is NULL,
[95474d7]244 * the default file $HOME/.zephyr.subs will be used.
245 *
246 * Returns 0 on success.  If the file does not exist, return -1 if
247 * 'error_on_nofile' is 1, otherwise return 0.  Return -1 if the file
248 * exists but can not be read.  Return -2 if there is a failure from
249 * zephyr to load the subscriptions.
[2de4f20]250 */
[e19eb97]251int owl_zephyr_loadsubs(const char *filename, int error_on_nofile)
[31e48a3]252{
[be0a79f]253#ifdef HAVE_LIBZEPHYR
[7d4fbcd]254  FILE *file;
255  char *tmp, *start;
[b7ee89b]256  char *buffer = NULL;
257  char *subsfile;
[bb2c60d]258  ZSubscription_t *subs;
259  int subSize = 1024;
[b7ee89b]260  int count;
[4357be8]261  struct stat statbuff;
[7d4fbcd]262
[bb2c60d]263  subs = owl_malloc(sizeof(ZSubscription_t) * subSize);
[6ea3890]264  subsfile = owl_zephyr_dotfile(".zephyr.subs", filename);
[b7ee89b]265
266  if (stat(subsfile, &statbuff) != 0) {
267    if (error_on_nofile == 1)
268      return -1;
269    return 0;
[95474d7]270  }
[4357be8]271
[8262340]272  ZResetAuthentication();
[b7ee89b]273  count = 0;
274  file = fopen(subsfile, "r");
275  owl_free(subsfile);
276  if (!file)
277    return -1;
278  while (owl_getline(&buffer, file)) {
279    if (buffer[0] == '#' || buffer[0] == '\n')
280        continue;
281
282    if (buffer[0] == '-')
283      start = buffer + 1;
284    else
285      start = buffer;
286
[bb2c60d]287    if (count >= subSize) {
[d21efbc]288      subSize *= 2;
289      subs = owl_realloc(subs, sizeof(ZSubscription_t) * subSize);
[93e883d]290    }
[95474d7]291   
292    /* add it to the list of subs */
[b7ee89b]293    if ((tmp = strtok(start, ",\n\r")) == NULL)
294      continue;
295    subs[count].zsub_class = owl_strdup(tmp);
296    if ((tmp=strtok(NULL, ",\n\r")) == NULL)
297      continue;
298    subs[count].zsub_classinst = owl_strdup(tmp);
299    if ((tmp = strtok(NULL, " \t\n\r")) == NULL)
300      continue;
301    subs[count].zsub_recipient = owl_strdup(tmp);
302
[bb2c60d]303    /* if it started with '-' then add it to the global punt list, and
304     * remove it from the list of subs. */
[b7ee89b]305    if (buffer[0] == '-') {
[95474d7]306      owl_function_zpunt(subs[count].zsub_class, subs[count].zsub_classinst, subs[count].zsub_recipient, 0);
[bb2c60d]307      owl_free(subs[count].zsub_class);
308      owl_free(subs[count].zsub_classinst);
309      owl_free(subs[count].zsub_recipient);
[b7ee89b]310    } else {
[bb2c60d]311      count++;
[95474d7]312    }
[7d4fbcd]313  }
[95474d7]314  fclose(file);
[b7ee89b]315  if (buffer)
316    owl_free(buffer);
[7d4fbcd]317
[b7ee89b]318  return owl_zephyr_loadsubs_helper(subs, count);
[7451af9]319#else
[b7ee89b]320  return 0;
[7451af9]321#endif
322}
323
324/* Load default Barnowl subscriptions
325 *
326 * Returns 0 on success.
327 * Return -2 if there is a failure from zephyr to load the subscriptions.
328 */
[c79a047]329int owl_zephyr_loadbarnowldefaultsubs(void)
[7451af9]330{
331#ifdef HAVE_LIBZEPHYR
332  ZSubscription_t *subs;
333  int subSize = 10; /* Max Barnowl default subs we allow */
334  int count, ret;
335
336  subs = owl_malloc(sizeof(ZSubscription_t) * subSize);
337  ret = 0;
338  ZResetAuthentication();
339  count=0;
340
341  subs[count].zsub_class=owl_strdup("message");
342  subs[count].zsub_classinst=owl_strdup("*");
343  subs[count].zsub_recipient=owl_strdup("%me%");
344  count++;
345
346  ret = owl_zephyr_loadsubs_helper(subs, count);
[7d4fbcd]347  return(ret);
[be0a79f]348#else
349  return(0);
350#endif
[7d4fbcd]351}
352
[c79a047]353int owl_zephyr_loaddefaultsubs(void)
[4357be8]354{
[40d834a]355#ifdef HAVE_LIBZEPHYR
[4357be8]356  ZSubscription_t subs[10];
357   
358  if (ZSubscribeTo(subs,0,0) != ZERR_NONE) {
359    owl_function_error("Error subscribing to default zephyr notifications.");
360    return(-1);
361  }
362  return(0);
[40d834a]363#else
364  return(0);
365#endif
[4357be8]366}
367
[e19eb97]368int owl_zephyr_loadloginsubs(const char *filename)
[31e48a3]369{
[be0a79f]370#ifdef HAVE_LIBZEPHYR
[7d4fbcd]371  FILE *file;
[d21efbc]372  ZSubscription_t *subs;
373  int numSubs = 100;
[b7ee89b]374  char *subsfile;
375  char *buffer = NULL;
376  int count;
[4357be8]377  struct stat statbuff;
[7d4fbcd]378
[d21efbc]379  subs = owl_malloc(numSubs * sizeof(ZSubscription_t));
[6ea3890]380  subsfile = owl_zephyr_dotfile(".anyone", filename);
[4357be8]381
[b7ee89b]382  if (stat(subsfile, &statbuff) == -1)
383    return 0;
[7d4fbcd]384
[8262340]385  ZResetAuthentication();
[b7ee89b]386  count = 0;
387  file = fopen(subsfile, "r");
388  owl_free(subsfile);
[7d4fbcd]389  if (file) {
[b7ee89b]390    while (owl_getline_chomp(&buffer, file)) {
391      if (buffer[0] == '\0' || buffer[0] == '#')
392        continue;
393
[d21efbc]394      if (count == numSubs) {
395        numSubs *= 2;
396        subs = owl_realloc(subs, numSubs * sizeof(ZSubscription_t));
397      }
[7d4fbcd]398
[b7ee89b]399      subs[count].zsub_class = owl_strdup("login");
400      subs[count].zsub_recipient = owl_strdup("*");
401      subs[count].zsub_classinst = long_zuser(buffer);
[7d4fbcd]402
403      count++;
404    }
405    fclose(file);
406  } else {
[b7ee89b]407    return 0;
[7d4fbcd]408  }
[b7ee89b]409  if (buffer)
410    owl_free(buffer);
[7d4fbcd]411
[b7ee89b]412  return owl_zephyr_loadsubs_helper(subs, count);
[be0a79f]413#else
[b7ee89b]414  return 0;
[be0a79f]415#endif
[7d4fbcd]416}
417
[c79a047]418void unsuball(void)
[31e48a3]419{
[be0a79f]420#if HAVE_LIBZEPHYR
[7d4fbcd]421  int ret;
[8262340]422
423  ZResetAuthentication();
[7d4fbcd]424  ret=ZCancelSubscriptions(0);
425  if (ret != ZERR_NONE) {
426    com_err("owl",ret,"while unsubscribing");
427  }
[be0a79f]428#endif
[7d4fbcd]429}
430
[e19eb97]431int owl_zephyr_sub(const char *class, const char *inst, const char *recip)
[31e48a3]432{
[be0a79f]433#ifdef HAVE_LIBZEPHYR
[7d4fbcd]434  ZSubscription_t subs[5];
435
[712caac]436  subs[0].zsub_class=zstr(class);
437  subs[0].zsub_classinst=zstr(inst);
438  subs[0].zsub_recipient=zstr(recip);
[7d4fbcd]439
[8262340]440  ZResetAuthentication();
[7d4fbcd]441  if (ZSubscribeTo(subs,1,0) != ZERR_NONE) {
[97cd00be]442    owl_function_error("Error subbing to <%s,%s,%s>", class, inst, recip);
443    return(-2);
[7d4fbcd]444  }
445  return(0);
[be0a79f]446#else
447  return(0);
448#endif
[7d4fbcd]449}
450
451
[e19eb97]452int owl_zephyr_unsub(const char *class, const char *inst, const char *recip)
[31e48a3]453{
[be0a79f]454#ifdef HAVE_LIBZEPHYR
[7d4fbcd]455  ZSubscription_t subs[5];
456
[712caac]457  subs[0].zsub_class=zstr(class);
458  subs[0].zsub_classinst=zstr(inst);
459  subs[0].zsub_recipient=zstr(recip);
[7d4fbcd]460
[8262340]461  ZResetAuthentication();
[7d4fbcd]462  if (ZUnsubscribeTo(subs,1,0) != ZERR_NONE) {
[97cd00be]463    owl_function_error("Error unsubbing from <%s,%s,%s>", class, inst, recip);
464    return(-2);
[7d4fbcd]465  }
466  return(0);
[be0a79f]467#else
468  return(0);
469#endif
[7d4fbcd]470}
471
[b0430a6]472/* return a pointer to the data in the Jth field, (NULL terminated by
473 * definition).  Caller must free the return.
474 */
[be0a79f]475#ifdef HAVE_LIBZEPHYR
[1077891a]476char *owl_zephyr_get_field(const ZNotice_t *n, int j)
[31e48a3]477{
[7d4fbcd]478  int i, count, save;
[b0430a6]479  char *out;
[7d4fbcd]480
[128171a]481  /* If there's no message here, just run along now */
482  if (n->z_message_len == 0)
483    return(owl_strdup(""));
484
[7d4fbcd]485  count=save=0;
486  for (i=0; i<n->z_message_len; i++) {
487    if (n->z_message[i]=='\0') {
488      count++;
489      if (count==j) {
490        /* just found the end of the field we're looking for */
[b0430a6]491        return(owl_strdup(n->z_message+save));
[7d4fbcd]492      } else {
493        save=i+1;
494      }
495    }
496  }
[b0430a6]497  /* catch the last field, which might not be null terminated */
[7d4fbcd]498  if (count==j-1) {
[b0430a6]499    out=owl_malloc(n->z_message_len-save+5);
500    memcpy(out, n->z_message+save, n->z_message_len-save);
501    out[n->z_message_len-save]='\0';
502    return(out);
[7d4fbcd]503  }
[b0430a6]504
505  return(owl_strdup(""));
[7d4fbcd]506}
[5376a95]507
[1077891a]508char *owl_zephyr_get_field_as_utf8(const ZNotice_t *n, int j)
[5376a95]509{
510  int i, count, save;
511
512  /* If there's no message here, just run along now */
513  if (n->z_message_len == 0)
514    return(owl_strdup(""));
515
516  count=save=0;
517  for (i = 0; i < n->z_message_len; i++) {
518    if (n->z_message[i]=='\0') {
519      count++;
520      if (count == j) {
521        /* just found the end of the field we're looking for */
[6201646]522        return(owl_validate_or_convert(n->z_message + save));
[5376a95]523      } else {
524        save = i + 1;
525      }
526    }
527  }
528  /* catch the last field, which might not be null terminated */
529  if (count == j - 1) {
[6201646]530    char *tmp, *out;
531    tmp = owl_malloc(n->z_message_len-save+5);
532    memcpy(tmp, n->z_message+save, n->z_message_len-save);
533    tmp[n->z_message_len-save]='\0';
534    out = owl_validate_or_convert(tmp);
535    owl_free(tmp);
536    return out;
[5376a95]537  }
538
539  return(owl_strdup(""));
540}
[09489b89]541#else
[701a184]542char *owl_zephyr_get_field(void *n, int j)
[09489b89]543{
[b0430a6]544  return(owl_strdup(""));
[09489b89]545}
[5577606]546char *owl_zephyr_get_field_as_utf8(void *n, int j)
[5376a95]547{
548  return owl_zephyr_get_field(n, j);
549}
[be0a79f]550#endif
[7d4fbcd]551
[b0430a6]552
[be0a79f]553#ifdef HAVE_LIBZEPHYR
[1077891a]554int owl_zephyr_get_num_fields(const ZNotice_t *n)
[31e48a3]555{
[7d4fbcd]556  int i, fields;
557
[50e29e3]558  if(n->z_message_len == 0)
559    return 0;
560
[7d4fbcd]561  fields=1;
562  for (i=0; i<n->z_message_len; i++) {
563    if (n->z_message[i]=='\0') fields++;
564  }
565 
566  return(fields);
567}
[09489b89]568#else
[1077891a]569int owl_zephyr_get_num_fields(const void *n)
[09489b89]570{
571  return(0);
572}
[be0a79f]573#endif
[7d4fbcd]574
[be0a79f]575#ifdef HAVE_LIBZEPHYR
[bf73bdd]576/* return a pointer to the message, place the message length in k
577 * caller must free the return
578 */
[c08c70a]579char *owl_zephyr_get_message(const ZNotice_t *n, const owl_message *m)
[31e48a3]580{
[405d5e6]581  /* don't let ping messages have a body */
[7d4fbcd]582  if (!strcasecmp(n->z_opcode, "ping")) {
[bf73bdd]583    return(owl_strdup(""));
[7d4fbcd]584  }
585
[a1bb198]586  /* deal with MIT NOC messages */
[85d1795]587  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")) {
588    char *msg, *field3, *field4;
[a1bb198]589
590    field3 = owl_zephyr_get_field(n, 3);
591    field4 = owl_zephyr_get_field(n, 4);
592
[85d1795]593    msg = owl_sprintf("%s service on %s %s\n%s", n->z_opcode, n->z_class_inst, field3, field4);
[272a4a0]594    owl_free(field3);
595    owl_free(field4);
[a1bb198]596    if (msg) {
597      return msg;
598    }
599  }
[fba0f96]600  /* deal with MIT Discuss messages */
[e2a620b]601  else if (!strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3 ($5)\nSubject: $4") ||
602           !strcasecmp(n->z_default_format, "New transaction [$1] entered in $2\nFrom: $3\nSubject: $4")) {
[fba0f96]603    char *msg, *field1, *field2, *field3, *field4, *field5;
604   
605    field1 = owl_zephyr_get_field(n, 1);
606    field2 = owl_zephyr_get_field(n, 2);
607    field3 = owl_zephyr_get_field(n, 3);
608    field4 = owl_zephyr_get_field(n, 4);
609    field5 = owl_zephyr_get_field(n, 5);
610   
611    msg = owl_sprintf("New transaction [%s] entered in %s\nFrom: %s (%s)\nSubject: %s", field1, field2, field3, field5, field4);
612    owl_free(field1);
613    owl_free(field2);
614    owl_free(field3);
615    owl_free(field4);
616    owl_free(field5);
617    if (msg) {
618      return msg;
619    }
620  }
[85d1795]621  /* deal with MIT Moira messages */
622  else if (!strcasecmp(n->z_default_format, "MOIRA $instance on $fromhost:\n $message\n")) {
623    char *msg, *field1;
624   
625    field1 = owl_zephyr_get_field(n, 1);
626   
627    msg = owl_sprintf("MOIRA %s on %s: %s", n->z_class_inst, owl_message_get_hostname(m), field1);
628    owl_free(field1);
629    if (msg) {
630      return msg;
631    }
632  }
[405d5e6]633
[85d1795]634  if (owl_zephyr_get_num_fields(n) == 1) {
635    return(owl_zephyr_get_field(n, 1));
636  }
637  else {
638    return(owl_zephyr_get_field(n, 2));
639  }
[7d4fbcd]640}
[be0a79f]641#endif
[7d4fbcd]642
[be0a79f]643#ifdef HAVE_LIBZEPHYR
[1077891a]644const char *owl_zephyr_get_zsig(const ZNotice_t *n, int *k)
[31e48a3]645{
[7d4fbcd]646  /* return a pointer to the zsig if there is one */
647
[405d5e6]648  /* message length 0? No zsig */
[7d4fbcd]649  if (n->z_message_len==0) {
650    *k=0;
651    return("");
652  }
[405d5e6]653
[85d1795]654  /* If there's only one field, no zsig */
655  if (owl_zephyr_get_num_fields(n) == 1) {
656    *k=0;
[405d5e6]657    return("");
658  }
659
660  /* Everything else is field 1 */
[7d4fbcd]661  *k=strlen(n->z_message);
662  return(n->z_message);
663}
[09489b89]664#else
[1077891a]665const char *owl_zephyr_get_zsig(const void *n, int *k)
[09489b89]666{
667  return("");
668}
[be0a79f]669#endif
[7d4fbcd]670
[e19eb97]671int send_zephyr(const char *opcode, const char *zsig, const char *class, const char *instance, const char *recipient, const char *message)
[31e48a3]672{
[be0a79f]673#ifdef HAVE_LIBZEPHYR
[7d4fbcd]674  int ret;
675  ZNotice_t notice;
676   
677  memset(&notice, 0, sizeof(notice));
678
[8262340]679  ZResetAuthentication();
[8ba37ec]680
681  if (!zsig) zsig="";
[8262340]682 
[7d4fbcd]683  notice.z_kind=ACKED;
684  notice.z_port=0;
[712caac]685  notice.z_class=zstr(class);
686  notice.z_class_inst=zstr(instance);
[21882032]687  notice.z_sender=NULL;
[7d4fbcd]688  if (!strcmp(recipient, "*") || !strcmp(recipient, "@")) {
[712caac]689    notice.z_recipient=zstr("");
[21882032]690    if (*owl_global_get_zsender(&g))
[712caac]691        notice.z_sender=zstr(owl_global_get_zsender(&g));
[7d4fbcd]692  } else {
[712caac]693    notice.z_recipient=zstr(recipient);
[7d4fbcd]694  }
[712caac]695  notice.z_default_format=zstr("Class $class, Instance $instance:\nTo: @bold($recipient) at $time $date\nFrom: @bold{$1 <$sender>}\n\n$2");
696  if (opcode) notice.z_opcode=zstr(opcode);
[7d4fbcd]697
[56330ff]698  notice.z_message_len=strlen(zsig)+1+strlen(message);
[7d4fbcd]699  notice.z_message=owl_malloc(notice.z_message_len+10);
[56330ff]700  strcpy(notice.z_message, zsig);
701  memcpy(notice.z_message+strlen(zsig)+1, message, strlen(message));
[7d4fbcd]702
703  /* ret=ZSendNotice(&notice, ZAUTH); */
704  ret=ZSrvSendNotice(&notice, ZAUTH, send_zephyr_helper);
705 
706  /* free then check the return */
707  owl_free(notice.z_message);
708  ZFreeNotice(&notice);
709  if (ret!=ZERR_NONE) {
[ec6ff52]710    owl_function_error("Error sending zephyr");
[7d4fbcd]711    return(ret);
712  }
713  return(0);
[be0a79f]714#else
715  return(0);
716#endif
[7d4fbcd]717}
718
[be0a79f]719#ifdef HAVE_LIBZEPHYR
[31e48a3]720Code_t send_zephyr_helper(ZNotice_t *notice, char *buf, int len, int wait)
721{
[7d4fbcd]722  return(ZSendPacket(buf, len, 0));
723}
[be0a79f]724#endif
[7d4fbcd]725
[e19eb97]726void send_ping(const char *to, const char *zclass, const char *zinstance)
[31e48a3]727{
[be0a79f]728#ifdef HAVE_LIBZEPHYR
[3ef779b]729  send_zephyr("PING", "", zclass, zinstance, to, "");
[be0a79f]730#endif
[7d4fbcd]731}
732
[be0a79f]733#ifdef HAVE_LIBZEPHYR
[1077891a]734void owl_zephyr_handle_ack(const ZNotice_t *retnotice)
[31e48a3]735{
[7d4fbcd]736  char *tmp;
737 
738  /* if it's an HMACK ignore it */
739  if (retnotice->z_kind == HMACK) return;
[aecf3e6]740
[7d4fbcd]741  if (retnotice->z_kind == SERVNAK) {
[ec6ff52]742    owl_function_error("Authorization failure sending zephyr");
[7d4fbcd]743  } else if ((retnotice->z_kind != SERVACK) || !retnotice->z_message_len) {
[ec6ff52]744    owl_function_error("Detected server failure while receiving acknowledgement");
[7d4fbcd]745  } else if (!strcmp(retnotice->z_message, ZSRVACK_SENT)) {
746    if (!strcasecmp(retnotice->z_opcode, "ping")) {
747      return;
748    } else {
[d73e3af]749      if (strcasecmp(retnotice->z_recipient, ""))
[1e550b2]750      { /* personal */
[d73e3af]751        tmp=short_zuser(retnotice->z_recipient);
752        if(!strcasecmp(retnotice->z_class, "message") &&
753           !strcasecmp(retnotice->z_class_inst, "personal")) {
754          owl_function_makemsg("Message sent to %s.", tmp);
[1e550b2]755        } else if(!strcasecmp(retnotice->z_class, "message")) { /* instanced, but not classed, personal */
[d73e3af]756          owl_function_makemsg("Message sent to %s on -i %s\n", tmp, retnotice->z_class_inst);
[1e550b2]757        } else { /* classed personal */
[d73e3af]758          owl_function_makemsg("Message sent to %s on -c %s -i %s\n", tmp, retnotice->z_class, retnotice->z_class_inst);
759        }
[27f6487]760        owl_free(tmp);
[d73e3af]761      } else {
[1e550b2]762        /* class / instance message */
[d73e3af]763          owl_function_makemsg("Message sent to -c %s -i %s\n", retnotice->z_class, retnotice->z_class_inst);
764      }
[7d4fbcd]765    }
766  } else if (!strcmp(retnotice->z_message, ZSRVACK_NOTSENT)) {
[1151f0b]767    #define BUFFLEN 1024
[44f32fb]768    if (retnotice->z_recipient == NULL
[60c2e1e]769        || *retnotice->z_recipient == 0
[44f32fb]770        || *retnotice->z_recipient == '@') {
[1151f0b]771      char buff[BUFFLEN];
[44f32fb]772      owl_function_error("No one subscribed to class %s", retnotice->z_class);
[1151f0b]773      snprintf(buff, BUFFLEN, "Could not send message to class %s: no one subscribed.\n", retnotice->z_class);
[9119a47]774      owl_function_adminmsg("", buff);
[7d4fbcd]775    } else {
[1151f0b]776      char buff[BUFFLEN];
[24ccc01]777      owl_zwrite zw;
778      char *realm;
779
[4b464a4]780      tmp = short_zuser(retnotice->z_recipient);
[44f32fb]781      owl_function_error("%s: Not logged in or subscribing.", tmp);
[3ef779b]782      /*
783       * These error messages are often over 80 chars, but users who want to
784       * see the whole thing can scroll to the side, and for those with wide
785       * terminals or who don't care, not splitting saves a line in the UI
786       */
787      if(strcasecmp(retnotice->z_class, "message")) {
[1151f0b]788        snprintf(buff, BUFFLEN,
[10e3963]789                 "Could not send message to %s: "
[3ef779b]790                 "not logged in or subscribing to class %s, instance %s.\n",
[10e3963]791                 tmp,
[1151f0b]792                 retnotice->z_class,
793                 retnotice->z_class_inst);
[3ef779b]794      } else if(strcasecmp(retnotice->z_class_inst, "personal")) {
795        snprintf(buff, BUFFLEN,
796                 "Could not send message to %s: "
797                 "not logged in or subscribing to instance %s.\n",
798                 tmp,
799                 retnotice->z_class_inst);
[44f32fb]800      } else {
[1151f0b]801        snprintf(buff, BUFFLEN,
[10e3963]802                 "Could not send message to %s: "
803                 "not logged in or subscribing to messages.\n",
804                 tmp);
[44f32fb]805      }
[9119a47]806      owl_function_adminmsg("", buff);
[24ccc01]807
808      memset(&zw, 0, sizeof(zw));
809      zw.class = owl_strdup(retnotice->z_class);
810      zw.inst  = owl_strdup(retnotice->z_class_inst);
811      realm = strchr(retnotice->z_recipient, '@');
812      if(realm) {
813        zw.realm = owl_strdup(realm + 1);
814      } else {
815        zw.realm = owl_strdup(owl_zephyr_get_realm());
816      }
817      zw.opcode = owl_strdup(retnotice->z_opcode);
818      zw.zsig   = owl_strdup("");
819      owl_list_create(&(zw.recips));
820      owl_list_append_element(&(zw.recips), owl_strdup(tmp));
821
822      owl_log_outgoing_zephyr_error(&zw, buff);
823
[c230bc1]824      owl_zwrite_cleanup(&zw);
[1c6c4d3]825      owl_free(tmp);
[7d4fbcd]826    }
827  } else {
[ec6ff52]828    owl_function_error("Internal error on ack (%s)", retnotice->z_message);
[7d4fbcd]829  }
830}
[09489b89]831#else
[1077891a]832void owl_zephyr_handle_ack(const void *retnotice)
[09489b89]833{
834}
[be0a79f]835#endif
[7d4fbcd]836
[be0a79f]837#ifdef HAVE_LIBZEPHYR
[1077891a]838int owl_zephyr_notice_is_ack(const ZNotice_t *n)
[31e48a3]839{
[7d4fbcd]840  if (n->z_kind == SERVNAK || n->z_kind == SERVACK || n->z_kind == HMACK) {
841    if (!strcasecmp(n->z_class, LOGIN_CLASS)) return(0);
842    return(1);
843  }
844  return(0);
845}
[09489b89]846#else
[1077891a]847int owl_zephyr_notice_is_ack(const void *n)
[09489b89]848{
849  return(0);
850}
[be0a79f]851#endif
[7d4fbcd]852 
[c08c70a]853void owl_zephyr_zaway(const owl_message *m)
[31e48a3]854{
[be0a79f]855#ifdef HAVE_LIBZEPHYR
[7c8060d0]856  char *tmpbuff, *myuser, *to;
[15b34fd]857  owl_message *mout;
[7d4fbcd]858 
[aa2f6364]859  /* bail if it doesn't look like a message we should reply to.  Some
[2de4f20]860   * of this defined by the way zaway(1) works
861   */
[7d4fbcd]862  if (strcasecmp(owl_message_get_class(m), "message")) return;
863  if (strcasecmp(owl_message_get_recipient(m), ZGetSender())) return;
864  if (!strcasecmp(owl_message_get_sender(m), "")) return;
865  if (!strcasecmp(owl_message_get_opcode(m), "ping")) return;
866  if (!strcasecmp(owl_message_get_opcode(m), "auto")) return;
[d023c25]867  if (!strcasecmp(owl_message_get_zsig(m), "Automated reply:")) return;
[7d4fbcd]868  if (!strcasecmp(owl_message_get_sender(m), ZGetSender())) return;
[9854278]869  if (owl_message_get_attribute_value(m, "isauto")) return;
[7d4fbcd]870
[7c8060d0]871  if (owl_global_is_smartstrip(&g)) {
[e3d9c77]872    to=owl_zephyr_smartstripped_user(owl_message_get_sender(m));
[7c8060d0]873  } else {
874    to=owl_strdup(owl_message_get_sender(m));
875  }
876
[7d4fbcd]877  send_zephyr("",
878              "Automated reply:",
879              owl_message_get_class(m),
880              owl_message_get_instance(m),
[7c8060d0]881              to,
[7d4fbcd]882              owl_global_get_zaway_msg(&g));
883
[7c8060d0]884  myuser=short_zuser(to);
[aa2f6364]885  if (!strcasecmp(owl_message_get_instance(m), "personal")) {
886    tmpbuff = owl_sprintf("zwrite %s", myuser);
887  } else {
888    tmpbuff = owl_sprintf("zwrite -i %s %s", owl_message_get_instance(m), myuser);
889  }
890  owl_free(myuser);
[7c8060d0]891  owl_free(to);
[aa2f6364]892
[7d4fbcd]893  /* display the message as an admin message in the receive window */
[15b34fd]894  mout=owl_function_make_outgoing_zephyr(owl_global_get_zaway_msg(&g), tmpbuff, "Automated reply:");
[13a3c1db]895  owl_global_messagequeue_addmsg(&g, mout);
[7d4fbcd]896  owl_free(tmpbuff);
[be0a79f]897#endif
[7d4fbcd]898}
899
[be0a79f]900#ifdef HAVE_LIBZEPHYR
[31e48a3]901void owl_zephyr_hackaway_cr(ZNotice_t *n)
902{
[7d4fbcd]903  /* replace \r's with ' '.  Gross-ish */
904  int i;
905
906  for (i=0; i<n->z_message_len; i++) {
907    if (n->z_message[i]=='\r') {
908      n->z_message[i]=' ';
909    }
910  }
911}
[be0a79f]912#endif
[7d4fbcd]913
[dca3b27]914char *owl_zephyr_zlocate(const char *user, int auth)
[31e48a3]915{
[be0a79f]916#ifdef HAVE_LIBZEPHYR
[7d4fbcd]917  int ret, numlocs;
918  int one = 1;
919  ZLocations_t locations;
920  char *myuser;
[dca3b27]921  char *p, *result;
922
[8262340]923  ZResetAuthentication();
[dca3b27]924  ret = ZLocateUser(zstr(user), &numlocs, auth ? ZAUTH : ZNOAUTH);
925  if (ret != ZERR_NONE)
926    return owl_sprintf("Error locating user %s: %s\n",
927                       user, error_message(ret));
928
929  myuser = short_zuser(user);
930  if (numlocs == 0) {
931    result = owl_sprintf("%s: Hidden or not logged in\n", myuser);
932  } else {
933    result = owl_strdup("");
934    for (; numlocs; numlocs--) {
935      ZGetLocations(&locations, &one);
936      p = owl_sprintf("%s%s: %s\t%s\t%s\n",
937                          result, myuser,
938                          locations.host ? locations.host : "?",
939                          locations.tty ? locations.tty : "?",
940                          locations.time ? locations.time : "?");
941      owl_free(result);
942      result = p;
943    }
[7d4fbcd]944  }
945
[dca3b27]946  return result;
947#else
948  return owl_strdup("");
[be0a79f]949#endif
[7d4fbcd]950}
[bde7714]951
[e19eb97]952void owl_zephyr_addsub(const char *filename, const char *class, const char *inst, const char *recip)
[31e48a3]953{
[be0a79f]954#ifdef HAVE_LIBZEPHYR
[b7ee89b]955  char *line, *subsfile, *s = NULL;
[bde7714]956  FILE *file;
[b7ee89b]957  int duplicate = 0;
[bde7714]958
[b7ee89b]959  line = owl_zephyr_makesubline(class, inst, recip);
[6ea3890]960  subsfile = owl_zephyr_dotfile(".zephyr.subs", filename);
[bde7714]961
[74037d9]962  /* if the file already exists, check to see if the sub is already there */
[b7ee89b]963  file = fopen(subsfile, "r");
[74037d9]964  if (file) {
[b7ee89b]965    while (owl_getline(&s, file)) {
966      if (strcasecmp(s, line) == 0) {
[74037d9]967        owl_function_error("Subscription already present in %s", subsfile);
[b7ee89b]968        duplicate++;
[74037d9]969      }
[bde7714]970    }
[99dabee]971    fclose(file);
[b7ee89b]972    owl_free(s);
[bde7714]973  }
974
[b7ee89b]975  if (!duplicate) {
976    file = fopen(subsfile, "a");
977    if (file) {
978      fputs(line, file);
979      fclose(file);
980      owl_function_makemsg("Subscription added");
981    } else {
982      owl_function_error("Error opening file %s for writing", subsfile);
983    }
[bde7714]984  }
[b7ee89b]985
[bde7714]986  owl_free(line);
[be0a79f]987#endif
[bde7714]988}
989
[e19eb97]990void owl_zephyr_delsub(const char *filename, const char *class, const char *inst, const char *recip)
[31e48a3]991{
[be0a79f]992#ifdef HAVE_LIBZEPHYR
[b2a91b6]993  char *line, *subsfile;
[da60ba9]994  int linesdeleted;
[bde7714]995 
996  line=owl_zephyr_makesubline(class, inst, recip);
[b2a91b6]997  line[strlen(line)-1]='\0';
[bde7714]998
[6ea3890]999  subsfile = owl_zephyr_dotfile(".zephyr.subs", filename);
[b2a91b6]1000 
[da60ba9]1001  linesdeleted = owl_util_file_deleteline(subsfile, line, 1);
1002  if (linesdeleted > 0) {
1003    owl_function_makemsg("Subscription removed");
1004  } else {
1005    owl_function_error("No subscription present in %s", subsfile);
1006  }
[b2a91b6]1007  owl_free(subsfile);
[bde7714]1008  owl_free(line);
[be0a79f]1009#endif
[bde7714]1010}
1011
[b2a91b6]1012/* caller must free the return */
[e19eb97]1013char *owl_zephyr_makesubline(const char *class, const char *inst, const char *recip)
[31e48a3]1014{
[36486be]1015  return owl_sprintf("%s,%s,%s\n", class, inst, !strcmp(recip, "") ? "*" : recip);
[bde7714]1016}
[31e48a3]1017
1018
1019void owl_zephyr_zlog_in(void)
1020{
[be0a79f]1021#ifdef HAVE_LIBZEPHYR
[e19eb97]1022  const char *exposure, *eset;
[31e48a3]1023  int ret;
1024
1025  ZResetAuthentication();
1026   
1027  eset=EXPOSE_REALMVIS;
[712caac]1028  exposure=ZGetVariable(zstr("exposure"));
[31e48a3]1029  if (exposure==NULL) {
1030    eset=EXPOSE_REALMVIS;
1031  } else if (!strcasecmp(exposure,EXPOSE_NONE)) {
1032    eset = EXPOSE_NONE;
1033  } else if (!strcasecmp(exposure,EXPOSE_OPSTAFF)) {
1034    eset = EXPOSE_OPSTAFF;
1035  } else if (!strcasecmp(exposure,EXPOSE_REALMVIS)) {
1036    eset = EXPOSE_REALMVIS;
1037  } else if (!strcasecmp(exposure,EXPOSE_REALMANN)) {
1038    eset = EXPOSE_REALMANN;
1039  } else if (!strcasecmp(exposure,EXPOSE_NETVIS)) {
1040    eset = EXPOSE_NETVIS;
1041  } else if (!strcasecmp(exposure,EXPOSE_NETANN)) {
1042    eset = EXPOSE_NETANN;
1043  }
1044   
[712caac]1045  ret=ZSetLocation(zstr(eset));
[31e48a3]1046  if (ret != ZERR_NONE) {
1047    /*
[e440602]1048      owl_function_makemsg("Error setting location: %s", error_message(ret));
[31e48a3]1049    */
1050  }
[be0a79f]1051#endif
[31e48a3]1052}
1053
1054void owl_zephyr_zlog_out(void)
1055{
[be0a79f]1056#ifdef HAVE_LIBZEPHYR
[31e48a3]1057  int ret;
1058
1059  ZResetAuthentication();
1060  ret=ZUnsetLocation();
1061  if (ret != ZERR_NONE) {
1062    /*
[e440602]1063      owl_function_makemsg("Error unsetting location: %s", error_message(ret));
[31e48a3]1064    */
1065  }
[be0a79f]1066#endif
[31e48a3]1067}
1068
[e19eb97]1069void owl_zephyr_addbuddy(const char *name)
[65ad073]1070{
1071  char *filename;
1072  FILE *file;
1073 
[6ea3890]1074  filename = owl_zephyr_dotfile(".anyone", NULL);
1075  file = fopen(filename, "a");
[65ad073]1076  owl_free(filename);
1077  if (!file) {
[ec6ff52]1078    owl_function_error("Error opening zephyr buddy file for append");
[65ad073]1079    return;
1080  }
1081  fprintf(file, "%s\n", name);
1082  fclose(file);
1083}
1084
[e19eb97]1085void owl_zephyr_delbuddy(const char *name)
[65ad073]1086{
1087  char *filename;
1088
[6ea3890]1089  filename = owl_zephyr_dotfile(".anyone", NULL);
[65ad073]1090  owl_util_file_deleteline(filename, name, 0);
1091  owl_free(filename);
1092}
[9381782]1093
1094/* return auth string */
[09489b89]1095#ifdef HAVE_LIBZEPHYR
[1077891a]1096const char *owl_zephyr_get_authstr(const ZNotice_t *n)
[9381782]1097{
1098
[f12d199]1099  if (!n) return("UNKNOWN");
1100
1101  if (n->z_auth == ZAUTH_FAILED) {
[9381782]1102    return ("FAILED");
[f12d199]1103  } else if (n->z_auth == ZAUTH_NO) {
[9381782]1104    return ("NO");
[f12d199]1105  } else if (n->z_auth == ZAUTH_YES) {
[9381782]1106    return ("YES");
1107  } else {
1108    return ("UNKNOWN");
[f12d199]1109  }           
[9381782]1110}
[09489b89]1111#else
[1077891a]1112const char *owl_zephyr_get_authstr(const void *n)
[09489b89]1113{
1114  return("");
1115}
1116#endif
[9381782]1117
[2de4f20]1118/* Returns a buffer of subscriptions or an error message.  Caller must
1119 * free the return.
[09489b89]1120 */
[c79a047]1121char *owl_zephyr_getsubs(void)
[09489b89]1122{
1123#ifdef HAVE_LIBZEPHYR
1124  int ret, num, i, one;
[ddacb9c]1125  int buffsize;
[09489b89]1126  ZSubscription_t sub;
[ddacb9c]1127  char *out;
[09489b89]1128  one=1;
1129
1130  ret=ZRetrieveSubscriptions(0, &num);
1131  if (ret==ZERR_TOOMANYSUBS) {
[c8735aa]1132    return(owl_strdup("Zephyr: too many subscriptions\n"));
[ddacb9c]1133  } else if (ret || (num <= 0)) {
[c8735aa]1134    return(owl_strdup("Zephyr: error retriving subscriptions\n"));
[09489b89]1135  }
1136
[ddacb9c]1137  buffsize = (num + 1) * 50;
1138  out=owl_malloc(buffsize);
[09489b89]1139  strcpy(out, "");
1140  for (i=0; i<num; i++) {
1141    if ((ret = ZGetSubscriptions(&sub, &one)) != ZERR_NONE) {
1142      owl_free(out);
1143      ZFlushSubscriptions();
1144      out=owl_strdup("Error while getting subscriptions\n");
1145      return(out);
1146    } else {
[ddacb9c]1147      int tmpbufflen;
1148      char *tmpbuff;
1149      tmpbuff = owl_sprintf("<%s,%s,%s>\n%s", sub.zsub_class, sub.zsub_classinst, sub.zsub_recipient, out);
1150      tmpbufflen = strlen(tmpbuff) + 1;
1151      if (tmpbufflen > buffsize) {
1152        char *out2;
1153        buffsize = tmpbufflen * 2;
1154        out2 = owl_realloc(out, buffsize);
1155        if (out2 == NULL) {
1156          owl_free(out);
1157          owl_free(tmpbuff);
1158          ZFlushSubscriptions();
1159          out=owl_strdup("Realloc error while getting subscriptions\n");
1160          return(out);   
1161        }
1162        out = out2;
1163      }
[09489b89]1164      strcpy(out, tmpbuff);
[ddacb9c]1165      owl_free(tmpbuff);
[09489b89]1166    }
1167  }
1168
1169  ZFlushSubscriptions();
1170  return(out);
1171#else
[12c35df]1172  return(owl_strdup("Zephyr not available"));
[09489b89]1173#endif
1174}
1175
[e19eb97]1176const char *owl_zephyr_get_variable(const char *var)
[09489b89]1177{
1178#ifdef HAVE_LIBZEPHYR
[712caac]1179  return(ZGetVariable(zstr(var)));
[09489b89]1180#else
1181  return("");
1182#endif
1183}
1184
[e19eb97]1185void owl_zephyr_set_locationinfo(const char *host, const char *val)
[09489b89]1186{
1187#ifdef HAVE_LIBZEPHYR
[712caac]1188  ZInitLocationInfo(zstr(host), zstr(val));
[09489b89]1189#endif
1190}
1191 
[e3d9c77]1192/* Strip a local realm fron the zephyr user name.
1193 * The caller must free the return
1194 */
[e19eb97]1195char *short_zuser(const char *in)
[e3d9c77]1196{
1197  char *out, *ptr;
1198
1199  out=owl_strdup(in);
1200  ptr=strchr(out, '@');
1201  if (ptr) {
1202    if (!strcasecmp(ptr+1, owl_zephyr_get_realm())) {
1203      *ptr='\0';
1204    }
1205  }
1206  return(out);
1207}
1208
1209/* Append a local realm to the zephyr user name if necessary.
1210 * The caller must free the return.
1211 */
[e19eb97]1212char *long_zuser(const char *in)
[e3d9c77]1213{
[1971b59]1214  if (strchr(in, '@')) {
1215    return(owl_strdup(in));
[e3d9c77]1216  }
[1971b59]1217  return(owl_sprintf("%s@%s", in, owl_zephyr_get_realm()));
[e3d9c77]1218}
1219
1220/* strip out the instance from a zsender's principal.  Preserves the
1221 * realm if present.  daemon.webzephyr is a special case.  The
1222 * caller must free the return
1223 */
[e19eb97]1224char *owl_zephyr_smartstripped_user(const char *in)
[e3d9c77]1225{
1226  char *ptr, *realm, *out;
1227
1228  out=owl_strdup(in);
1229
1230  /* bail immeaditly if we don't have to do any work */
[fa4562c]1231  ptr=strchr(out, '.');
1232  if (!strchr(out, '/') && !ptr) {
[e3d9c77]1233    /* no '/' and no '.' */
1234    return(out);
1235  }
[fa4562c]1236  if (ptr && strchr(out, '@') && (ptr > strchr(out, '@'))) {
[e3d9c77]1237    /* There's a '.' but it's in the realm */
1238    return(out);
1239  }
[fa4562c]1240  if (!strncasecmp(out, OWL_WEBZEPHYR_PRINCIPAL, strlen(OWL_WEBZEPHYR_PRINCIPAL))) {
[e3d9c77]1241    return(out);
1242  }
1243
[fa4562c]1244  /* remove the realm from out, but hold on to it */
[e3d9c77]1245  realm=strchr(out, '@');
1246  if (realm) realm[0]='\0';
1247
1248  /* strip */
1249  ptr=strchr(out, '.');
1250  if (!ptr) ptr=strchr(out, '/');
1251  ptr[0]='\0';
1252
1253  /* reattach the realm if we had one */
1254  if (realm) {
1255    strcat(out, "@");
1256    strcat(out, realm+1);
1257  }
1258
1259  return(out);
1260}
[5a95b69]1261
1262/* read the list of users in 'filename' as a .anyone file, and put the
1263 * names of the zephyr users in the list 'in'.  If 'filename' is NULL,
1264 * use the default .anyone file in the users home directory.  Returns
1265 * -1 on failure, 0 on success.
1266 */
[e19eb97]1267int owl_zephyr_get_anyone_list(owl_list *in, const char *filename)
[5a95b69]1268{
1269#ifdef HAVE_LIBZEPHYR
[b7ee89b]1270  char *ourfile, *tmp, *s = NULL;
[5a95b69]1271  FILE *f;
1272
[6ea3890]1273  ourfile = owl_zephyr_dotfile(".anyone", filename);
[b7ee89b]1274
1275  f = fopen(ourfile, "r");
[5a95b69]1276  if (!f) {
1277    owl_function_error("Error opening file %s: %s", ourfile, strerror(errno) ? strerror(errno) : "");
1278    owl_free(ourfile);
[b7ee89b]1279    return -1;
[5a95b69]1280  }
[b7ee89b]1281  owl_free(ourfile);
[5a95b69]1282
[b7ee89b]1283  while (owl_getline_chomp(&s, f)) {
[5a95b69]1284    /* ignore comments, blank lines etc. */
[b7ee89b]1285    if (s[0] == '#' || s[0] == '\0')
1286      continue;
1287
1288    /* ignore from # on */
1289    tmp = strchr(s, '#');
1290    if (tmp)
1291      tmp[0] = '\0';
1292
1293    /* ignore from SPC */
1294    tmp = strchr(s, ' ');
1295    if (tmp)
1296      tmp[0] = '\0';
1297
1298    owl_list_append_element(in, long_zuser(s));
[5a95b69]1299  }
[6b31006]1300  owl_free(s);
[5a95b69]1301  fclose(f);
[b7ee89b]1302  return 0;
[5a95b69]1303#else
[b7ee89b]1304  return -1;
[5a95b69]1305#endif
1306}
[13a3c1db]1307
[f25812b]1308#ifdef HAVE_LIBZEPHYR
1309void owl_zephyr_process_pseudologin(ZNotice_t *n)
1310{
1311  owl_message *m;
1312  owl_zbuddylist *zbl;
1313  GList **zaldlist;
1314  GList *zaldptr;
1315  ZAsyncLocateData_t *zald = NULL;
1316  ZLocations_t location;
1317  int numlocs, ret, notify;
1318
1319  /* Find a ZALD to match this notice. */
1320  zaldlist = owl_global_get_zaldlist(&g);
1321  zaldptr = g_list_first(*zaldlist);
1322  while (zaldptr) {
1323    if (ZCompareALDPred(n, zaldptr->data)) {
1324      zald = zaldptr->data;
1325      *zaldlist = g_list_remove(*zaldlist, zaldptr->data);
1326      break;
1327    }
1328    zaldptr = g_list_next(zaldptr);
1329  }
1330  if (zald) {
1331    /* Deal with notice. */
1332    notify = owl_global_get_pseudologin_notify(&g);
1333    zbl = owl_global_get_zephyr_buddylist(&g);
1334    ret = ZParseLocations(n, zald, &numlocs, NULL);
1335    if (ret == ZERR_NONE) {
1336      if (numlocs > 0 && !owl_zbuddylist_contains_user(zbl, zald->user)) {
1337        if (notify) {
1338          numlocs = 1;
1339          ret = ZGetLocations(&location, &numlocs);
1340          if (ret == ZERR_NONE) {
1341            /* Send a PSEUDO LOGIN! */
1342            m = owl_malloc(sizeof(owl_message));
1343            owl_message_create_pseudo_zlogin(m, 0, zald->user,
1344                                             location.host,
1345                                             location.time,
1346                                             location.tty);
1347            owl_global_messagequeue_addmsg(&g, m);
1348          }
1349          owl_zbuddylist_adduser(zbl, zald->user);
1350          owl_function_debugmsg("owl_function_zephyr_buddy_check: login for %s ", zald->user);
1351        }
1352      } else if (numlocs == 0 && owl_zbuddylist_contains_user(zbl, zald->user)) {
1353        /* Send a PSEUDO LOGOUT! */
1354        if (notify) {
1355          m = owl_malloc(sizeof(owl_message));
1356          owl_message_create_pseudo_zlogin(m, 1, zald->user, "", "", "");
1357          owl_global_messagequeue_addmsg(&g, m);
1358        }
1359        owl_zbuddylist_deluser(zbl, zald->user);
1360        owl_function_debugmsg("owl_function_zephyr_buddy_check: logout for %s ", zald->user);
1361      }
1362    }
1363    ZFreeALD(zald);
1364    owl_free(zald);
1365  }
1366}
1367#else
1368void owl_zephyr_process_pseudologin(void *n)
1369{
1370}
1371#endif
1372
[3687413]1373void owl_zephyr_buddycheck_timer(owl_timer *t, void *data)
1374{
1375  if (owl_global_is_pseudologins(&g)) {
1376    owl_function_debugmsg("Doing zephyr buddy check");
1377    owl_function_zephyr_buddy_check(1);
1378  } else {
1379    owl_function_debugmsg("Warning: owl_zephyr_buddycheck_timer call pointless; timer should have been disabled");
1380  }
1381}
1382
[12e291a]1383/*
1384 * Process zephyrgrams from libzephyr's queue. To prevent starvation,
1385 * process a maximum of OWL_MAX_ZEPHYRGRAMS_TO_PROCESS.
1386 *
1387 * Returns the number of zephyrgrams processed.
1388 */
1389
1390#define OWL_MAX_ZEPHYRGRAMS_TO_PROCESS 20
1391
[e9c6fc8]1392static int _owl_zephyr_process_events(void)
[12e291a]1393{
[13a3c1db]1394  int zpendcount=0;
[12e291a]1395#ifdef HAVE_LIBZEPHYR
[13a3c1db]1396  ZNotice_t notice;
[8ab1f28]1397  Code_t code;
[13a3c1db]1398  owl_message *m=NULL;
1399
[12e291a]1400  while(owl_zephyr_zpending() && zpendcount < OWL_MAX_ZEPHYRGRAMS_TO_PROCESS) {
[13a3c1db]1401    if (owl_zephyr_zpending()) {
[8ab1f28]1402      if ((code = ZReceiveNotice(&notice, NULL)) != ZERR_NONE) {
1403        owl_function_debugmsg("Error: %s while calling ZReceiveNotice\n",
1404                              error_message(code));
1405        continue;
1406      }
[13a3c1db]1407      zpendcount++;
1408
1409      /* is this an ack from a zephyr we sent? */
1410      if (owl_zephyr_notice_is_ack(&notice)) {
1411        owl_zephyr_handle_ack(&notice);
[46c7f5b]1412        ZFreeNotice(&notice);
[13a3c1db]1413        continue;
1414      }
1415
1416      /* if it's a ping and we're not viewing pings then skip it */
1417      if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
[46c7f5b]1418        ZFreeNotice(&notice);
[13a3c1db]1419        continue;
1420      }
1421
[f25812b]1422      /* if it is a LOCATE message, it's for pseudologins. */
1423      if (strcmp(notice.z_opcode, LOCATE_LOCATE) == 0) {
1424        owl_zephyr_process_pseudologin(&notice);
1425        ZFreeNotice(&notice);
1426        continue;
1427      }
1428
[13a3c1db]1429      /* create the new message */
1430      m=owl_malloc(sizeof(owl_message));
1431      owl_message_create_from_znotice(m, &notice);
1432
1433      owl_global_messagequeue_addmsg(&g, m);
1434    }
1435  }
[12e291a]1436#endif
1437  return zpendcount;
[13a3c1db]1438}
1439
[18fdd5f9]1440void owl_zephyr_process_events(const owl_io_dispatch *d, void *data)
[12e291a]1441{
1442  _owl_zephyr_process_events();
1443}
1444
1445int owl_zephyr_pre_select_action(owl_ps_action *a, void *p)
1446{
1447  return _owl_zephyr_process_events();
[13a3c1db]1448}
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