use an Enum for the cm_fields vector instead of nameless chars
[citadel.git] / citadel / modules / vcard / serv_vcard.c
1 /*
2  * A server-side module for Citadel which supports address book information
3  * using the standard vCard format.
4  * 
5  * Copyright (c) 1999-2012 by the citadel.org team
6  *
7  * This program is open source software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 3.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  */
15
16 /*
17  * Format of the "Exclusive ID" field of the message containing a user's
18  * vCard.  Doesn't matter what it really looks like as long as it's both
19  * unique and consistent (because we use it for replication checking to
20  * delete the old vCard network-wide when the user enters a new one).
21  */
22 #define VCARD_EXT_FORMAT        "Citadel vCard: personal card for %s at %s"
23
24 /*
25  * Citadel will accept either text/vcard or text/x-vcard as the MIME type
26  * for a vCard.  The following definition determines which one it *generates*
27  * when serializing.
28  */
29 #define VCARD_MIME_TYPE         "text/x-vcard"
30
31 #include "sysdep.h"
32 #include <stdlib.h>
33 #include <unistd.h>
34 #include <stdio.h>
35 #include <fcntl.h>
36 #include <signal.h>
37 #include <pwd.h>
38 #include <errno.h>
39 #include <ctype.h>
40 #include <sys/types.h>
41
42 #if TIME_WITH_SYS_TIME
43 # include <sys/time.h>
44 # include <time.h>
45 #else
46 # if HAVE_SYS_TIME_H
47 #  include <sys/time.h>
48 # else
49 #  include <time.h>
50 # endif
51 #endif
52
53 #include <sys/wait.h>
54 #include <string.h>
55 #include <limits.h>
56 #include <libcitadel.h>
57 #include "citadel.h"
58 #include "server.h"
59 #include "citserver.h"
60 #include "support.h"
61 #include "config.h"
62 #include "control.h"
63 #include "user_ops.h"
64 #include "database.h"
65 #include "msgbase.h"
66 #include "internet_addressing.h"
67 #include "serv_vcard.h"
68 #include "citadel_ldap.h"
69 #include "ctdl_module.h"
70
71 /*
72  * set global flag calling for an aide to validate new users
73  */
74 void set_mm_valid(void) {
75         begin_critical_section(S_CONTROL);
76         get_control();
77         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
78         put_control();
79         end_critical_section(S_CONTROL);
80 }
81
82
83
84 /*
85  * Extract Internet e-mail addresses from a message containing a vCard, and
86  * perform a callback for any found.
87  */
88 void vcard_extract_internet_addresses(struct CtdlMessage *msg, int (*callback)(char *, char *) ) {
89         struct vCard *v;
90         char *s;
91         char *k;
92         char *addr;
93         char citadel_address[SIZ];
94         int instance = 0;
95         int found_something = 0;
96
97         if (msg->cm_fields[eAuthor] == NULL) return;
98         if (msg->cm_fields[eNodeName] == NULL) return;
99         snprintf(citadel_address, sizeof citadel_address, "%s @ %s",
100                 msg->cm_fields[eAuthor], msg->cm_fields[eNodeName]);
101
102         v = vcard_load(msg->cm_fields[eMesageText]);
103         if (v == NULL) return;
104
105         /* Go through the vCard searching for *all* instances of
106          * the "email;internet" key
107          */
108         do {
109                 s = vcard_get_prop(v, "email", 1, instance, 0);         /* get any 'email' field */
110                 k = vcard_get_prop(v, "email", 1, instance++, 1);       /* but also learn it with attrs */
111                 if ( (s != NULL) && (k != NULL) && (bmstrcasestr(k, "internet")) ) {
112                         addr = strdup(s);
113                         striplt(addr);
114                         if (!IsEmptyStr(addr)) {
115                                 if (callback != NULL) {
116                                         callback(addr, citadel_address);
117                                 }
118                         }
119                         free(addr);
120                         found_something = 1;
121                 }
122                 else {
123                         found_something = 0;
124                 }
125         } while(found_something);
126
127         vcard_free(v);
128 }
129 ///TODO: gettext!
130 #define _(a) a
131 /*
132  * Callback for vcard_add_to_directory()
133  * (Lotsa ugly nested callbacks.  Oh well.)
134  */
135 int vcard_directory_add_user(char *internet_addr, char *citadel_addr) {
136         struct CitContext *CCC = CC;
137         char buf[SIZ];
138
139         /* We have to validate that we're not stepping on someone else's
140          * email address ... but only if we're logged in.  Otherwise it's
141          * probably just the networker or something.
142          */
143         if (CCC->logged_in) {
144                 syslog(LOG_DEBUG, "Checking for <%s>...", internet_addr);
145                 if (CtdlDirectoryLookup(buf, internet_addr, sizeof buf) == 0) {
146                         if (strcasecmp(buf, citadel_addr)) {
147                                 /* This address belongs to someone else.
148                                  * Bail out silently without saving.
149                                  */
150                                 syslog(LOG_DEBUG, "DOOP!");
151                                 
152                                 StrBufAppendPrintf(CCC->StatusMessage, "\n%d|", ERROR+ALREADY_EXISTS);
153                                 StrBufAppendBufPlain(CCC->StatusMessage, internet_addr, -1, 0);
154                                 StrBufAppendBufPlain(CCC->StatusMessage, HKEY("|"), 0);
155                                 StrBufAppendBufPlain(CCC->StatusMessage, _("Unable to add this email address again."), -1, 0);
156                                 StrBufAppendBufPlain(CCC->StatusMessage, HKEY("\n"), 0);
157                                 return 0;
158                         }
159                 }
160         }
161         syslog(LOG_INFO, "Adding %s (%s) to directory", citadel_addr, internet_addr);
162         if (CtdlDirectoryAddUser(internet_addr, citadel_addr))
163         {
164                 StrBufAppendPrintf(CCC->StatusMessage, "\n%d|", CIT_OK);
165                 StrBufAppendBufPlain(CCC->StatusMessage, internet_addr, -1, 0);
166                 StrBufAppendBufPlain(CCC->StatusMessage, HKEY("|"), 0);
167                 StrBufAppendBufPlain(CCC->StatusMessage, _("Successfully added email address."), -1, 0);
168                 return 1;
169         }
170         else
171         {
172                 StrBufAppendPrintf(CCC->StatusMessage, "\n%d|", ERROR+ ILLEGAL_VALUE);
173                 StrBufAppendBufPlain(CCC->StatusMessage, internet_addr, -1, 0);
174                 StrBufAppendBufPlain(CCC->StatusMessage, HKEY("|"), 0);
175                 StrBufAppendBufPlain(CCC->StatusMessage, _("Unable to add this email address. It does not match any local domain."), -1, 0);
176                 return 0;
177         }
178 }
179
180
181 /*
182  * Back end function for cmd_igab()
183  */
184 void vcard_add_to_directory(long msgnum, void *data) {
185         struct CtdlMessage *msg;
186
187         msg = CtdlFetchMessage(msgnum, 1);
188         if (msg != NULL) {
189                 vcard_extract_internet_addresses(msg, vcard_directory_add_user);
190         }
191
192         CtdlFreeMessage(msg);
193 }
194
195
196 /*
197  * Initialize Global Adress Book
198  */
199 void cmd_igab(char *argbuf) {
200         char hold_rm[ROOMNAMELEN];
201
202         if (CtdlAccessCheck(ac_aide)) return;
203
204         strcpy(hold_rm, CC->room.QRname);       /* save current room */
205
206         if (CtdlGetRoom(&CC->room, ADDRESS_BOOK_ROOM) != 0) {
207                 CtdlGetRoom(&CC->room, hold_rm);
208                 cprintf("%d cannot get address book room\n", ERROR + ROOM_NOT_FOUND);
209                 return;
210         }
211
212         /* Empty the existing database first.
213          */
214         CtdlDirectoryInit();
215
216         /* We want *all* vCards in this room */
217         NewStrBufDupAppendFlush(&CC->StatusMessage, NULL, NULL, 0);
218         CtdlForEachMessage(MSGS_ALL, 0, NULL, "[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$",
219                 NULL, vcard_add_to_directory, NULL);
220
221         CtdlGetRoom(&CC->room, hold_rm);        /* return to saved room */
222         cprintf("%d Directory has been rebuilt.\n", CIT_OK);
223 }
224
225
226
227
228 /*
229  * See if there is a valid Internet address in a vCard to use for outbound
230  * Internet messages.  If there is, stick it in the buffer.
231  */
232 void extract_inet_email_addrs(char *emailaddrbuf, size_t emailaddrbuf_len,
233                               char *secemailaddrbuf, size_t secemailaddrbuf_len,
234                               struct vCard *v,
235                               int local_addrs_only)
236 {
237         struct CitContext *CCC = CC;            /* put this on the stack, just for speed */
238         char *s, *k, *addr;
239         int instance = 0;
240         int IsDirectoryAddress;
241         int saved_instance = 0;
242
243         /* Go through the vCard searching for *all* Internet email addresses
244          */
245         while (s = vcard_get_prop(v, "email", 1, instance, 0),  s != NULL) {
246                 k = vcard_get_prop(v, "email", 1, instance, 1);
247                 if ( (s != NULL) && (k != NULL) && (bmstrcasestr(k, "internet")) ) {
248                         addr = strdup(s);
249                         striplt(addr);
250                         if (!IsEmptyStr(addr)) {
251                                 IsDirectoryAddress = IsDirectory(addr, 1);
252                                 if ( IsDirectoryAddress || !local_addrs_only)
253                                 {
254                                         ++saved_instance;
255                                         if ((saved_instance == 1) && (emailaddrbuf != NULL)) {
256                                                 safestrncpy(emailaddrbuf, addr, emailaddrbuf_len);
257                                         }
258                                         else if ((saved_instance == 2) && (secemailaddrbuf != NULL)) {
259                                                 safestrncpy(secemailaddrbuf, addr, secemailaddrbuf_len);
260                                         }
261                                         else if ((saved_instance > 2) && (secemailaddrbuf != NULL)) {
262                                                 if ( (strlen(addr) + strlen(secemailaddrbuf) + 2) 
263                                                 < secemailaddrbuf_len ) {
264                                                         strcat(secemailaddrbuf, "|");
265                                                         strcat(secemailaddrbuf, addr);
266                                                 }
267                                         }
268                                 }
269                                 if (!IsDirectoryAddress && local_addrs_only)
270                                 {
271                                         StrBufAppendPrintf(CCC->StatusMessage, "\n%d|", ERROR+ ILLEGAL_VALUE);
272                                         StrBufAppendBufPlain(CCC->StatusMessage, addr, -1, 0);
273                                         StrBufAppendBufPlain(CCC->StatusMessage, HKEY("|"), 0);
274                                         StrBufAppendBufPlain(CCC->StatusMessage, _("unable to add this emailaddress; its not matching our domain."), -1, 0);
275                                 }
276                         }
277                         free(addr);
278                 }
279                 ++instance;
280         }
281 }
282
283
284
285 /*
286  * See if there is a name / screen name / friendly name  in a vCard to use for outbound
287  * Internet messages.  If there is, stick it in the buffer.
288  */
289 void extract_friendly_name(char *namebuf, size_t namebuf_len, struct vCard *v)
290 {
291         char *s;
292
293         s = vcard_get_prop(v, "fn", 1, 0, 0);
294         if (s == NULL) {
295                 s = vcard_get_prop(v, "n", 1, 0, 0);
296         }
297
298         if (s != NULL) {
299                 safestrncpy(namebuf, s, namebuf_len);
300         }
301 }
302
303
304 /*
305  * Callback function for vcard_upload_beforesave() hunts for the real vcard in the MIME structure
306  */
307 void vcard_extract_vcard(char *name, char *filename, char *partnum, char *disp,
308                    void *content, char *cbtype, char *cbcharset, size_t length,
309                    char *encoding, char *cbid, void *cbuserdata)
310 {
311         struct vCard **v = (struct vCard **) cbuserdata;
312
313         if (  (!strcasecmp(cbtype, "text/x-vcard"))
314            || (!strcasecmp(cbtype, "text/vcard")) ) {
315
316                 syslog(LOG_DEBUG, "Part %s contains a vCard!  Loading...", partnum);
317                 if (*v != NULL) {
318                         vcard_free(*v);
319                 }
320                 *v = vcard_load(content);
321         }
322 }
323
324
325 /*
326  * This handler detects whether the user is attempting to save a new
327  * vCard as part of his/her personal configuration, and handles the replace
328  * function accordingly (delete the user's existing vCard in the config room
329  * and in the global address book).
330  */
331 int vcard_upload_beforesave(struct CtdlMessage *msg) {
332         struct CitContext *CCC = CC;
333         char *ptr;
334         char *s;
335         char buf[SIZ];
336         struct ctdluser usbuf;
337         long what_user;
338         struct vCard *v = NULL;
339         char *ser = NULL;
340         int i = 0;
341         int yes_my_citadel_config = 0;
342         int yes_any_vcard_room = 0;
343
344         if (!CCC->logged_in) return(0); /* Only do this if logged in. */
345
346         /* Is this some user's "My Citadel Config" room? */
347         if (((CCC->room.QRflags & QR_MAILBOX) != 0) &&
348               (!strcasecmp(&CCC->room.QRname[11], USERCONFIGROOM)) ) {
349                 /* Yes, we want to do this */
350                 yes_my_citadel_config = 1;
351
352 #ifdef VCARD_SAVES_BY_AIDES_ONLY
353                 /* Prevent non-aides from performing registration changes */
354                 if (CCC->user.axlevel < AxAideU) {
355                         return(1);
356                 }
357 #endif
358
359         }
360
361         /* Is this a room with an address book in it? */
362         if (CCC->room.QRdefaultview == VIEW_ADDRESSBOOK) {
363                 yes_any_vcard_room = 1;
364         }
365
366         /* If neither condition exists, don't run this hook. */
367         if ( (!yes_my_citadel_config) && (!yes_any_vcard_room) ) {
368                 return(0);
369         }
370
371         /* If this isn't a MIME message, don't bother. */
372         if (msg->cm_format_type != 4) return(0);
373
374         /* Ok, if we got this far, look into the situation further... */
375
376         ptr = msg->cm_fields[eMesageText];
377         if (ptr == NULL) return(0);
378
379         mime_parser(msg->cm_fields[eMesageText],
380                 NULL,
381                 *vcard_extract_vcard,
382                 NULL, NULL,
383                 &v,             /* user data ptr - put the vcard here */
384                 0
385         );
386
387         if (v == NULL) return(0);       /* no vCards were found in this message */
388
389         /* If users cannot create their own accounts, they cannot re-register either. */
390         if ( (yes_my_citadel_config) && (config.c_disable_newu) && (CCC->user.axlevel < AxAideU) ) {
391                 return(1);
392         }
393
394         vcard_get_prop(v, "fn", 1, 0, 0);
395
396         if (yes_my_citadel_config) {
397                 /* Bingo!  The user is uploading a new vCard, so
398                  * delete the old one.  First, figure out which user
399                  * is being re-registered...
400                  */
401                 what_user = atol(CCC->room.QRname);
402
403                 if (what_user == CCC->user.usernum) {
404                         /* It's the logged in user.  That was easy. */
405                         memcpy(&usbuf, &CCC->user, sizeof(struct ctdluser));
406                 }
407                 
408                 else if (CtdlGetUserByNumber(&usbuf, what_user) == 0) {
409                         /* We fetched a valid user record */
410                 }
411
412                 else {
413                         /* somebody set up us the bomb! */
414                         yes_my_citadel_config = 0;
415                 }
416         }
417         
418         if (yes_my_citadel_config) {
419                 /* Delete the user's old vCard.  This would probably
420                  * get taken care of by the replication check, but we
421                  * want to make sure there is absolutely only one
422                  * vCard in the user's config room at all times.
423                  *
424                  */
425                 CtdlDeleteMessages(CCC->room.QRname, NULL, 0, "[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$");
426
427                 /* Make the author of the message the name of the user. */
428                 if (msg->cm_fields[eAuthor] != NULL) {
429                         free(msg->cm_fields[eAuthor]);
430                 }
431                 msg->cm_fields[eAuthor] = strdup(usbuf.fullname);
432         }
433
434         /* Insert or replace RFC2739-compliant free/busy URL */
435         if (yes_my_citadel_config) {
436                 sprintf(buf, "http://%s/%s.vfb",
437                         config.c_fqdn,
438                         usbuf.fullname);
439                 for (i=0; buf[i]; ++i) {
440                         if (buf[i] == ' ') buf[i] = '_';
441                 }
442                 vcard_set_prop(v, "FBURL;PREF", buf, 0);
443         }
444
445         /* If the vCard has no UID, then give it one. */
446         s = vcard_get_prop(v, "UID", 1, 0, 0);
447         if (s == NULL) {
448                 generate_uuid(buf);
449                 vcard_set_prop(v, "UID", buf, 0);
450         }
451
452         /* Enforce local UID policy if applicable */
453         if (yes_my_citadel_config) {
454                 snprintf(buf, sizeof buf, VCARD_EXT_FORMAT, msg->cm_fields[eAuthor], NODENAME);
455                 vcard_set_prop(v, "UID", buf, 0);
456         }
457
458         /* 
459          * Set the EUID of the message to the UID of the vCard.
460          */
461         if (msg->cm_fields[eExclusiveID] != NULL)
462         {
463                 free(msg->cm_fields[eExclusiveID]);
464                 msg->cm_fields[eExclusiveID] = NULL;
465         }
466         s = vcard_get_prop(v, "UID", 1, 0, 0);
467         if (s != NULL) {
468                 msg->cm_fields[eExclusiveID] = strdup(s);
469                 if (msg->cm_fields[eMsgSubject] == NULL) {
470                         msg->cm_fields[eMsgSubject] = strdup(s);
471                 }
472         }
473
474         /*
475          * Set the Subject to the name in the vCard.
476          */
477         s = vcard_get_prop(v, "FN", 1, 0, 0);
478         if (s == NULL) {
479                 s = vcard_get_prop(v, "N", 1, 0, 0);
480         }
481         if (s != NULL) {
482                 if (msg->cm_fields[eMsgSubject] != NULL) {
483                         free(msg->cm_fields[eMsgSubject]);
484                 }
485                 msg->cm_fields[eMsgSubject] = strdup(s);
486         }
487
488         /* Re-serialize it back into the msg body */
489         ser = vcard_serialize(v);
490         if (ser != NULL) {
491                 msg->cm_fields[eMesageText] = realloc(msg->cm_fields[eMesageText], strlen(ser) + 1024);
492                 sprintf(msg->cm_fields[eMesageText],
493                         "Content-type: " VCARD_MIME_TYPE
494                         "\r\n\r\n%s\r\n", ser);
495                 free(ser);
496         }
497
498         /* Now allow the save to complete. */
499         vcard_free(v);
500         return(0);
501 }
502
503
504
505 /*
506  * This handler detects whether the user is attempting to save a new
507  * vCard as part of his/her personal configuration, and handles the replace
508  * function accordingly (copy the vCard from the config room to the global
509  * address book).
510  */
511 int vcard_upload_aftersave(struct CtdlMessage *msg) {
512         struct CitContext *CCC = CC;
513         char *ptr;
514         int linelen;
515         long I;
516         struct vCard *v;
517         int is_UserConf=0;
518         int is_MY_UserConf=0;
519         int is_GAB=0;
520         char roomname[ROOMNAMELEN];
521
522         if (msg->cm_format_type != 4) return(0);
523         if (!CCC->logged_in) return(0); /* Only do this if logged in. */
524
525         /* We're interested in user config rooms only. */
526
527         if ( (strlen(CCC->room.QRname) >= 12) && (!strcasecmp(&CCC->room.QRname[11], USERCONFIGROOM)) ) {
528                 is_UserConf = 1;        /* It's someone's config room */
529         }
530         CtdlMailboxName(roomname, sizeof roomname, &CCC->user, USERCONFIGROOM);
531         if (!strcasecmp(CCC->room.QRname, roomname)) {
532                 is_UserConf = 1;
533                 is_MY_UserConf = 1;     /* It's MY config room */
534         }
535         if (!strcasecmp(CCC->room.QRname, ADDRESS_BOOK_ROOM)) {
536                 is_GAB = 1;             /* It's the Global Address Book */
537         }
538
539         if (!is_UserConf && !is_GAB) return(0);
540
541         ptr = msg->cm_fields[eMesageText];
542         if (ptr == NULL) return(0);
543
544         NewStrBufDupAppendFlush(&CCC->StatusMessage, NULL, NULL, 0);
545
546         StrBufPrintf(CCC->StatusMessage, "%d\n", LISTING_FOLLOWS);
547
548         while (ptr != NULL) {
549         
550                 linelen = strcspn(ptr, "\n");
551                 if (linelen == 0) return(0);    /* end of headers */    
552                 
553                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
554                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
555                         /*
556                          * Bingo!  The user is uploading a new vCard, so
557                          * copy it to the Global Address Book room.
558                          */
559
560                         I = atol(msg->cm_fields[eVltMsgNum]);
561                         if (I <= 0L) return(0);
562
563                         /* Store our Internet return address in memory */
564                         if (is_MY_UserConf) {
565                                 v = vcard_load(msg->cm_fields[eMesageText]);
566                                 extract_inet_email_addrs(CCC->cs_inet_email, sizeof CCC->cs_inet_email,
567                                                 CCC->cs_inet_other_emails, sizeof CCC->cs_inet_other_emails,
568                                                 v, 1);
569                                 extract_friendly_name(CCC->cs_inet_fn, sizeof CCC->cs_inet_fn, v);
570                                 vcard_free(v);
571                         }
572
573                         if (!is_GAB)
574                         {       // This is not the GAB
575                                 /* Put it in the Global Address Book room... */
576                                 CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I, 1, msg);
577                         }
578
579                         /* ...and also in the directory database. */
580                         vcard_add_to_directory(I, NULL);
581
582                         /* Some sites want an Aide to be notified when a
583                          * user registers or re-registers
584                          * But if the user was an Aide or was edited by an Aide then we can
585                          * Assume they don't need validating.
586                          */
587                         if (CCC->user.axlevel >= AxAideU) {
588                                 CtdlGetUserLock(&CCC->user, CCC->curr_user);
589                                 CCC->user.flags |= US_REGIS;
590                                 CtdlPutUserLock(&CCC->user);
591                                 return (0);
592                         }
593                         
594                         set_mm_valid();
595
596                         /* ...which also means we need to flag the user */
597                         CtdlGetUserLock(&CCC->user, CCC->curr_user);
598                         CCC->user.flags |= (US_REGIS|US_NEEDVALID);
599                         CtdlPutUserLock(&CCC->user);
600
601                         return(0);
602                 }
603
604                 ptr = strchr((char *)ptr, '\n');
605                 if (ptr != NULL) ++ptr;
606         }
607
608         return(0);
609 }
610
611
612
613 /*
614  * back end function used for callbacks
615  */
616 void vcard_gu_backend(long supplied_msgnum, void *userdata) {
617         long *msgnum;
618
619         msgnum = (long *) userdata;
620         *msgnum = supplied_msgnum;
621 }
622
623
624 /*
625  * If this user has a vcard on disk, read it into memory, otherwise allocate
626  * and return an empty vCard.
627  */
628 struct vCard *vcard_get_user(struct ctdluser *u) {
629         struct CitContext *CCC = CC;
630         char hold_rm[ROOMNAMELEN];
631         char config_rm[ROOMNAMELEN];
632         struct CtdlMessage *msg = NULL;
633         struct vCard *v;
634         long VCmsgnum;
635
636         strcpy(hold_rm, CCC->room.QRname);      /* save current room */
637         CtdlMailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
638
639         if (CtdlGetRoom(&CCC->room, config_rm) != 0) {
640                 CtdlGetRoom(&CCC->room, hold_rm);
641                 return vcard_new();
642         }
643
644         /* We want the last (and probably only) vcard in this room */
645         VCmsgnum = (-1);
646         CtdlForEachMessage(MSGS_LAST, 1, NULL, "[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$",
647                 NULL, vcard_gu_backend, (void *)&VCmsgnum );
648         CtdlGetRoom(&CCC->room, hold_rm);       /* return to saved room */
649
650         if (VCmsgnum < 0L) return vcard_new();
651
652         msg = CtdlFetchMessage(VCmsgnum, 1);
653         if (msg == NULL) return vcard_new();
654
655         v = vcard_load(msg->cm_fields[eMesageText]);
656         CtdlFreeMessage(msg);
657         return v;
658 }
659
660
661 /*
662  * Store this user's vCard in the appropriate place
663  */
664 /*
665  * Write our config to disk
666  */
667 void vcard_write_user(struct ctdluser *u, struct vCard *v) {
668         char *ser;
669
670         ser = vcard_serialize(v);
671         if (ser == NULL) {
672                 ser = strdup("begin:vcard\r\nend:vcard\r\n");
673         }
674         if (!ser) return;
675
676         /* This handy API function does all the work for us.
677          * NOTE: normally we would want to set that last argument to 1, to
678          * force the system to delete the user's old vCard.  But it doesn't
679          * have to, because the vcard_upload_beforesave() hook above
680          * is going to notice what we're trying to do, and delete the old vCard.
681          */
682         CtdlWriteObject(USERCONFIGROOM,         /* which room */
683                         VCARD_MIME_TYPE,        /* MIME type */
684                         ser,                    /* data */
685                         strlen(ser)+1,          /* length */
686                         u,                      /* which user */
687                         0,                      /* not binary */
688                         0,                      /* don't delete others of this type */
689                         0);                     /* no flags */
690
691         free(ser);
692 }
693
694
695
696 /*
697  * Old style "enter registration info" command.  This function simply honors
698  * the REGI protocol command, translates the entered parameters into a vCard,
699  * and enters the vCard into the user's configuration.
700  */
701 void cmd_regi(char *argbuf) {
702         struct CitContext *CCC = CC;
703         int a,b,c;
704         char buf[SIZ];
705         struct vCard *my_vcard;
706
707         char tmpaddr[SIZ];
708         char tmpcity[SIZ];
709         char tmpstate[SIZ];
710         char tmpzip[SIZ];
711         char tmpaddress[SIZ];
712         char tmpcountry[SIZ];
713
714         unbuffer_output();
715
716         if (!(CCC->logged_in)) {
717                 cprintf("%d Not logged in.\n",ERROR + NOT_LOGGED_IN);
718                 return;
719         }
720
721         /* If users cannot create their own accounts, they cannot re-register either. */
722         if ( (config.c_disable_newu) && (CCC->user.axlevel < AxAideU) ) {
723                 cprintf("%d Self-service registration is not allowed here.\n",
724                         ERROR + HIGHER_ACCESS_REQUIRED);
725         }
726
727         my_vcard = vcard_get_user(&CCC->user);
728         strcpy(tmpaddr, "");
729         strcpy(tmpcity, "");
730         strcpy(tmpstate, "");
731         strcpy(tmpzip, "");
732         strcpy(tmpcountry, "USA");
733
734         cprintf("%d Send registration...\n", SEND_LISTING);
735         a=0;
736         while (client_getln(buf, sizeof buf), strcmp(buf,"000")) {
737                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
738                 if (a==1) strcpy(tmpaddr, buf);
739                 if (a==2) strcpy(tmpcity, buf);
740                 if (a==3) strcpy(tmpstate, buf);
741                 if (a==4) {
742                         for (c=0; buf[c]; ++c) {
743                                 if ((buf[c]>='0') && (buf[c]<='9')) {
744                                         b = strlen(tmpzip);
745                                         tmpzip[b] = buf[c];
746                                         tmpzip[b+1] = 0;
747                                 }
748                         }
749                 }
750                 if (a==5) vcard_set_prop(my_vcard, "tel", buf, 0);
751                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
752                 if (a==7) strcpy(tmpcountry, buf);
753                 ++a;
754         }
755
756         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
757                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
758         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
759         vcard_write_user(&CCC->user, my_vcard);
760         vcard_free(my_vcard);
761 }
762
763
764 /*
765  * Protocol command to fetch registration info for a user
766  */
767 void cmd_greg(char *argbuf)
768 {
769         struct CitContext *CCC = CC;
770         struct ctdluser usbuf;
771         struct vCard *v;
772         char *s;
773         char who[USERNAME_SIZE];
774         char adr[256];
775         char buf[256];
776
777         extract_token(who, argbuf, 0, '|', sizeof who);
778
779         if (!(CCC->logged_in)) {
780                 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
781                 return;
782         }
783
784         if (!strcasecmp(who,"_SELF_")) strcpy(who,CCC->curr_user);
785
786         if ((CCC->user.axlevel < AxAideU) && (strcasecmp(who,CCC->curr_user))) {
787                 cprintf("%d Higher access required.\n",
788                         ERROR + HIGHER_ACCESS_REQUIRED);
789                 return;
790         }
791
792         if (CtdlGetUser(&usbuf, who) != 0) {
793                 cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, who);
794                 return;
795         }
796
797         v = vcard_get_user(&usbuf);
798
799         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
800         cprintf("%ld\n", usbuf.usernum);
801         cprintf("%s\n", usbuf.password);
802         s = vcard_get_prop(v, "n", 1, 0, 0);
803         cprintf("%s\n", s ? s : " ");   /* name */
804
805         s = vcard_get_prop(v, "adr", 1, 0, 0);
806         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
807
808         extract_token(buf, adr, 2, ';', sizeof buf);
809         cprintf("%s\n", buf);                           /* street */
810         extract_token(buf, adr, 3, ';', sizeof buf);
811         cprintf("%s\n", buf);                           /* city */
812         extract_token(buf, adr, 4, ';', sizeof buf);
813         cprintf("%s\n", buf);                           /* state */
814         extract_token(buf, adr, 5, ';', sizeof buf);
815         cprintf("%s\n", buf);                           /* zip */
816
817         s = vcard_get_prop(v, "tel", 1, 0, 0);
818         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
819         if (s != NULL) {
820                 cprintf("%s\n", s);
821         }
822         else {
823                 cprintf(" \n");
824         }
825
826         cprintf("%d\n", usbuf.axlevel);
827
828         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
829         cprintf("%s\n", s ? s : " ");
830         s = vcard_get_prop(v, "adr", 0, 0, 0);
831         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
832
833         extract_token(buf, adr, 6, ';', sizeof buf);
834         cprintf("%s\n", buf);                           /* country */
835         cprintf("000\n");
836         vcard_free(v);
837 }
838
839
840
841 /*
842  * When a user is being created, create his/her vCard.
843  */
844 void vcard_newuser(struct ctdluser *usbuf) {
845         char vname[256];
846         char buf[256];
847         int i;
848         struct vCard *v;
849
850         vcard_fn_to_n(vname, usbuf->fullname, sizeof vname);
851         syslog(LOG_DEBUG, "Converted <%s> to <%s>", usbuf->fullname, vname);
852
853         /* Create and save the vCard */
854         v = vcard_new();
855         if (v == NULL) return;
856         vcard_add_prop(v, "fn", usbuf->fullname);
857         vcard_add_prop(v, "n", vname);
858         vcard_add_prop(v, "adr", "adr:;;_;_;_;00000;__");
859
860 #ifdef HAVE_GETPWUID_R
861         /* If using host auth mode, we add an email address based on the login */
862         if (config.c_auth_mode == AUTHMODE_HOST) {
863                 struct passwd pwd;
864                 char pwd_buffer[SIZ];
865                 
866 #ifdef SOLARIS_GETPWUID
867                 if (getpwuid_r(usbuf->uid, &pwd, pwd_buffer, sizeof pwd_buffer) != NULL) {
868 #else // SOLARIS_GETPWUID
869                 struct passwd *result = NULL;
870                 syslog(LOG_DEBUG, "Searching for uid %d", usbuf->uid);
871                 if (getpwuid_r(usbuf->uid, &pwd, pwd_buffer, sizeof pwd_buffer, &result) == 0) {
872 #endif // HAVE_GETPWUID_R
873                         snprintf(buf, sizeof buf, "%s@%s", pwd.pw_name, config.c_fqdn);
874                         vcard_add_prop(v, "email;internet", buf);
875                 }
876         }
877 #endif
878
879         /* Everyone gets an email address based on their display name */
880         snprintf(buf, sizeof buf, "%s@%s", usbuf->fullname, config.c_fqdn);
881         for (i=0; buf[i]; ++i) {
882                 if (buf[i] == ' ') buf[i] = '_';
883         }
884         vcard_add_prop(v, "email;internet", buf);
885
886
887         vcard_write_user(usbuf, v);
888         vcard_free(v);
889 }
890
891
892 /*
893  * When a user is being deleted, we have to remove his/her vCard.
894  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
895  * field, and the same Exclusive ID as the existing card.
896  */
897 void vcard_purge(struct ctdluser *usbuf) {
898         struct CtdlMessage *msg;
899         char buf[SIZ];
900
901         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
902         if (msg == NULL) return;
903         memset(msg, 0, sizeof(struct CtdlMessage));
904
905         msg->cm_magic = CTDLMESSAGE_MAGIC;
906         msg->cm_anon_type = MES_NORMAL;
907         msg->cm_format_type = 0;
908         msg->cm_fields[eAuthor] = strdup(usbuf->fullname);
909         msg->cm_fields[eOriginalRoom] = strdup(ADDRESS_BOOK_ROOM);
910         msg->cm_fields[eNodeName] = strdup(NODENAME);
911         msg->cm_fields[eMesageText] = strdup("Purge this vCard\n");
912
913         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
914                         msg->cm_fields[eAuthor], NODENAME);
915         msg->cm_fields[eExclusiveID] = strdup(buf);
916
917         msg->cm_fields[eSpecialField] = strdup("CANCEL");
918
919         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM, QP_EADDR);
920         CtdlFreeMessage(msg);
921 }
922
923
924 /*
925  * Grab vCard directory stuff out of incoming network messages
926  */
927 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
928         char *ptr;
929         int linelen;
930
931         if (msg == NULL) return(0);
932
933         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
934                 return(0);
935         }
936
937         if (msg->cm_format_type != 4) return(0);
938
939         ptr = msg->cm_fields[eMesageText];
940         if (ptr == NULL) return(0);
941         while (ptr != NULL) {
942         
943                 linelen = strcspn(ptr, "\n");
944                 if (linelen == 0) return(0);    /* end of headers */    
945                 
946                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
947                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
948                         /* It's a vCard.  Add it to the directory. */
949                         vcard_extract_internet_addresses(msg, CtdlDirectoryAddUser);
950                         return(0);
951                 }
952
953                 ptr = strchr((char *)ptr, '\n');
954                 if (ptr != NULL) ++ptr;
955         }
956
957         return(0);
958 }
959
960
961
962 /* 
963  * When a vCard is being removed from the Global Address Book room, remove it
964  * from the directory as well.
965  */
966 void vcard_delete_remove(char *room, long msgnum) {
967         struct CtdlMessage *msg;
968         char *ptr;
969         int linelen;
970
971         if (msgnum <= 0L) return;
972         
973         if (room == NULL) return;
974
975         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
976                 return;
977         }
978
979         msg = CtdlFetchMessage(msgnum, 1);
980         if (msg == NULL) return;
981
982         ptr = msg->cm_fields[eMesageText];
983         if (ptr == NULL) goto EOH;
984         while (ptr != NULL) {
985                 linelen = strcspn(ptr, "\n");
986                 if (linelen == 0) goto EOH;
987                 
988                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
989                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
990                         /* Bingo!  A vCard is being deleted. */
991                         vcard_extract_internet_addresses(msg, CtdlDirectoryDelUser);
992                 }
993                 ptr = strchr((char *)ptr, '\n');
994                 if (ptr != NULL) ++ptr;
995         }
996
997 EOH:    CtdlFreeMessage(msg);
998 }
999
1000
1001
1002 /*
1003  * Get Valid Screen Names
1004  */
1005 void cmd_gvsn(char *argbuf)
1006 {
1007         struct CitContext *CCC = CC;
1008
1009         if (CtdlAccessCheck(ac_logged_in)) return;
1010
1011         cprintf("%d valid screen names:\n", LISTING_FOLLOWS);
1012         cprintf("%s\n", CCC->user.fullname);
1013         if ( (!IsEmptyStr(CCC->cs_inet_fn)) && (strcasecmp(CCC->user.fullname, CCC->cs_inet_fn)) ) {
1014                 cprintf("%s\n", CCC->cs_inet_fn);
1015         }
1016         cprintf("000\n");
1017 }
1018
1019
1020 /*
1021  * Get Valid Email Addresses
1022  */
1023 void cmd_gvea(char *argbuf)
1024 {
1025         struct CitContext *CCC = CC;
1026         int num_secondary_emails = 0;
1027         int i;
1028         char buf[256];
1029
1030         if (CtdlAccessCheck(ac_logged_in)) return;
1031
1032         cprintf("%d valid email addresses:\n", LISTING_FOLLOWS);
1033         if (!IsEmptyStr(CCC->cs_inet_email)) {
1034                 cprintf("%s\n", CCC->cs_inet_email);
1035         }
1036         if (!IsEmptyStr(CCC->cs_inet_other_emails)) {
1037                 num_secondary_emails = num_tokens(CCC->cs_inet_other_emails, '|');
1038                 for (i=0; i<num_secondary_emails; ++i) {
1039                         extract_token(buf, CCC->cs_inet_other_emails,i,'|',sizeof CCC->cs_inet_other_emails);
1040                         cprintf("%s\n", buf);
1041                 }
1042         }
1043         cprintf("000\n");
1044 }
1045
1046
1047
1048
1049 /*
1050  * Callback function for cmd_dvca() that hunts for vCard content types
1051  * and outputs any email addresses found within.
1052  */
1053 void dvca_mime_callback(char *name, char *filename, char *partnum, char *disp,
1054                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1055                 char *cbid, void *cbuserdata) {
1056
1057         struct vCard *v;
1058         char displayname[256] = "";
1059         int displayname_len;
1060         char emailaddr[256] = "";
1061         int i;
1062         int has_commas = 0;
1063
1064         if ( (strcasecmp(cbtype, "text/vcard")) && (strcasecmp(cbtype, "text/x-vcard")) ) {
1065                 return;
1066         }
1067
1068         v = vcard_load(content);
1069         if (v == NULL) return;
1070
1071         extract_friendly_name(displayname, sizeof displayname, v);
1072         extract_inet_email_addrs(emailaddr, sizeof emailaddr, NULL, 0, v, 0);
1073
1074         displayname_len = strlen(displayname);
1075         for (i=0; i<displayname_len; ++i) {
1076                 if (displayname[i] == '\"') displayname[i] = ' ';
1077                 if (displayname[i] == ';') displayname[i] = ',';
1078                 if (displayname[i] == ',') has_commas = 1;
1079         }
1080         striplt(displayname);
1081
1082         cprintf("%s%s%s <%s>\n",
1083                 (has_commas ? "\"" : ""),
1084                 displayname,
1085                 (has_commas ? "\"" : ""),
1086                 emailaddr
1087         );
1088
1089         vcard_free(v);
1090 }
1091
1092
1093 /*
1094  * Back end callback function for cmd_dvca()
1095  *
1096  * It's basically just passed a list of message numbers, which we're going
1097  * to fetch off the disk and then pass along to the MIME parser via another
1098  * layer of callback...
1099  */
1100 void dvca_callback(long msgnum, void *userdata) {
1101         struct CtdlMessage *msg = NULL;
1102
1103         msg = CtdlFetchMessage(msgnum, 1);
1104         if (msg == NULL) return;
1105         mime_parser(msg->cm_fields[eMesageText],
1106                 NULL,
1107                 *dvca_mime_callback,    /* callback function */
1108                 NULL, NULL,
1109                 NULL,                   /* user data */
1110                 0
1111         );
1112         CtdlFreeMessage(msg);
1113 }
1114
1115
1116 /*
1117  * Dump VCard Addresses
1118  */
1119 void cmd_dvca(char *argbuf)
1120 {
1121         if (CtdlAccessCheck(ac_logged_in)) return;
1122
1123         cprintf("%d addresses:\n", LISTING_FOLLOWS);
1124         CtdlForEachMessage(MSGS_ALL, 0, NULL, NULL, NULL, dvca_callback, NULL);
1125         cprintf("000\n");
1126 }
1127
1128
1129 /*
1130  * Query Directory
1131  */
1132 void cmd_qdir(char *argbuf) {
1133         char citadel_addr[256];
1134         char internet_addr[256];
1135
1136         if (CtdlAccessCheck(ac_logged_in)) return;
1137
1138         extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1139
1140         if (CtdlDirectoryLookup(citadel_addr, internet_addr, sizeof citadel_addr) != 0) {
1141                 cprintf("%d %s was not found.\n",
1142                         ERROR + NO_SUCH_USER, internet_addr);
1143                 return;
1144         }
1145
1146         cprintf("%d %s\n", CIT_OK, citadel_addr);
1147 }
1148
1149 /*
1150  * Query Directory, in fact an alias to match postfix tcp auth.
1151  */
1152 void check_get(void) {
1153         char internet_addr[256];
1154
1155         char cmdbuf[SIZ];
1156
1157         time(&CC->lastcmd);
1158         memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
1159         if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
1160                 syslog(LOG_CRIT, "vcard client disconnected: ending session.");
1161                 CC->kill_me = KILLME_CLIENT_DISCONNECTED;
1162                 return;
1163         }
1164         syslog(LOG_INFO, ": %s", cmdbuf);
1165         while (strlen(cmdbuf) < 3) strcat(cmdbuf, " ");
1166         syslog(LOG_INFO, "[ %s]", cmdbuf);
1167         
1168         if (strncasecmp(cmdbuf, "GET ", 4)==0)
1169         {
1170                 struct recptypes *rcpt;
1171                 char *argbuf = &cmdbuf[4];
1172                 
1173                 extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1174                 rcpt = validate_recipients(internet_addr, NULL, CHECK_EXISTANCE);
1175                 if ((rcpt != NULL)&&
1176                         (
1177                          (*rcpt->recp_local != '\0')||
1178                          (*rcpt->recp_room != '\0')||
1179                          (*rcpt->recp_ignet != '\0')))
1180                 {
1181
1182                         cprintf("200 OK %s\n", internet_addr);
1183                         syslog(LOG_INFO, "sending 200 OK for the room %s", rcpt->display_recp);
1184                 }
1185                 else 
1186                 {
1187                         cprintf("500 REJECT noone here by that name.\n");
1188                         
1189                         syslog(LOG_INFO, "sending 500 REJECT no one here by that name: %s", internet_addr);
1190                 }
1191                 if (rcpt != NULL) 
1192                         free_recipients(rcpt);
1193         }
1194         else {
1195                 cprintf("500 REJECT invalid Query.\n");
1196                 syslog(LOG_INFO, "sending 500 REJECT invalid query: %s", internet_addr);
1197         }
1198 }
1199
1200 void check_get_greeting(void) {
1201 /* dummy function, we have no greeting in this verry simple protocol. */
1202 }
1203
1204
1205 /*
1206  * We don't know if the Contacts room exists so we just create it at login
1207  */
1208 void vcard_CtdlCreateRoom(void)
1209 {
1210         struct ctdlroom qr;
1211         visit vbuf;
1212
1213         /* Create the calendar room if it doesn't already exist */
1214         CtdlCreateRoom(USERCONTACTSROOM, 4, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1215
1216         /* Set expiration policy to manual; otherwise objects will be lost! */
1217         if (CtdlGetRoomLock(&qr, USERCONTACTSROOM)) {
1218                 syslog(LOG_ERR, "Couldn't get the user CONTACTS room!");
1219                 return;
1220         }
1221         qr.QRep.expire_mode = EXPIRE_MANUAL;
1222         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1223         CtdlPutRoomLock(&qr);
1224
1225         /* Set the view to a calendar view */
1226         CtdlGetRelationship(&vbuf, &CC->user, &qr);
1227         vbuf.v_view = 2;        /* 2 = address book view */
1228         CtdlSetRelationship(&vbuf, &CC->user, &qr);
1229
1230         return;
1231 }
1232
1233
1234
1235
1236 /*
1237  * When a user logs in...
1238  */
1239 void vcard_session_login_hook(void) {
1240         struct vCard *v = NULL;
1241         struct CitContext *CCC = CC;            /* put this on the stack, just for speed */
1242
1243 #ifdef HAVE_LDAP
1244         /*
1245          * Is this an LDAP session?  If so, copy various LDAP attributes from the directory entry
1246          * into the user's vCard.
1247          */
1248         if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
1249                 v = vcard_get_user(&CCC->user);
1250                 if (v) {
1251                         if (Ctdl_LDAP_to_vCard(CCC->ldap_dn, v)) {
1252                                 vcard_write_user(&CCC->user, v);
1253                         }
1254                 }
1255         }
1256 #endif
1257
1258         /*
1259          * Extract from the user's vCard, any Internet email addresses and the user's real name.
1260          * These are inserted into the session data for various message entry commands to use.
1261          */
1262         v = vcard_get_user(&CCC->user);
1263         if (v) {
1264                 extract_inet_email_addrs(CCC->cs_inet_email, sizeof CCC->cs_inet_email,
1265                                         CCC->cs_inet_other_emails, sizeof CCC->cs_inet_other_emails,
1266                                         v, 1
1267                 );
1268                 extract_friendly_name(CCC->cs_inet_fn, sizeof CCC->cs_inet_fn, v);
1269                 vcard_free(v);
1270         }
1271
1272         /*
1273          * Create the user's 'Contacts' room (personal address book) if it doesn't already exist.
1274          */
1275         vcard_CtdlCreateRoom();
1276 }
1277
1278
1279 /* 
1280  * Turn an arbitrary RFC822 address into a struct vCard for possible
1281  * inclusion into an address book.
1282  */
1283 struct vCard *vcard_new_from_rfc822_addr(char *addr) {
1284         struct vCard *v;
1285         char user[256], node[256], name[256], email[256], n[256], uid[256];
1286         int i;
1287
1288         v = vcard_new();
1289         if (v == NULL) return(NULL);
1290
1291         process_rfc822_addr(addr, user, node, name);
1292         vcard_set_prop(v, "fn", name, 0);
1293
1294         vcard_fn_to_n(n, name, sizeof n);
1295         vcard_set_prop(v, "n", n, 0);
1296
1297         snprintf(email, sizeof email, "%s@%s", user, node);
1298         vcard_set_prop(v, "email;internet", email, 0);
1299
1300         snprintf(uid, sizeof uid, "collected: %s %s@%s", name, user, node);
1301         for (i=0; uid[i]; ++i) {
1302                 if (isspace(uid[i])) uid[i] = '_';
1303                 uid[i] = tolower(uid[i]);
1304         }
1305         vcard_set_prop(v, "UID", uid, 0);
1306
1307         return(v);
1308 }
1309
1310
1311
1312 /*
1313  * This is called by store_harvested_addresses() to remove from the
1314  * list any addresses we already have in our address book.
1315  */
1316 void strip_addresses_already_have(long msgnum, void *userdata) {
1317         char *collected_addresses;
1318         struct CtdlMessage *msg = NULL;
1319         struct vCard *v;
1320         char *value = NULL;
1321         int i, j;
1322         char addr[256], user[256], node[256], name[256];
1323
1324         collected_addresses = (char *)userdata;
1325
1326         msg = CtdlFetchMessage(msgnum, 1);
1327         if (msg == NULL) return;
1328         v = vcard_load(msg->cm_fields[eMesageText]);
1329         CtdlFreeMessage(msg);
1330
1331         i = 0;
1332         while (value = vcard_get_prop(v, "email", 1, i++, 0), value != NULL) {
1333
1334                 for (j=0; j<num_tokens(collected_addresses, ','); ++j) {
1335                         extract_token(addr, collected_addresses, j, ',', sizeof addr);
1336
1337                         /* Remove the address if we already have it! */
1338                         process_rfc822_addr(addr, user, node, name);
1339                         snprintf(addr, sizeof addr, "%s@%s", user, node);
1340                         if (!strcasecmp(value, addr)) {
1341                                 remove_token(collected_addresses, j, ',');
1342                         }
1343                 }
1344
1345         }
1346
1347         vcard_free(v);
1348 }
1349
1350
1351
1352 /*
1353  * Back end function for store_harvested_addresses()
1354  */
1355 void store_this_ha(struct addresses_to_be_filed *aptr) {
1356         struct CtdlMessage *vmsg = NULL;
1357         char *ser = NULL;
1358         struct vCard *v = NULL;
1359         char recipient[256];
1360         int i;
1361
1362         /* First remove any addresses we already have in the address book */
1363         CtdlUserGoto(aptr->roomname, 0, 0, NULL, NULL);
1364         CtdlForEachMessage(MSGS_ALL, 0, NULL, "[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$", NULL,
1365                 strip_addresses_already_have, aptr->collected_addresses);
1366
1367         if (!IsEmptyStr(aptr->collected_addresses))
1368            for (i=0; i<num_tokens(aptr->collected_addresses, ','); ++i) {
1369
1370                 /* Make a vCard out of each address */
1371                 extract_token(recipient, aptr->collected_addresses, i, ',', sizeof recipient);
1372                 striplt(recipient);
1373                 v = vcard_new_from_rfc822_addr(recipient);
1374                 if (v != NULL) {
1375                         vmsg = malloc(sizeof(struct CtdlMessage));
1376                         memset(vmsg, 0, sizeof(struct CtdlMessage));
1377                         vmsg->cm_magic = CTDLMESSAGE_MAGIC;
1378                         vmsg->cm_anon_type = MES_NORMAL;
1379                         vmsg->cm_format_type = FMT_RFC822;
1380                         vmsg->cm_fields[eAuthor] = strdup("Citadel");
1381                         vmsg->cm_fields[eExclusiveID] =  strdup(vcard_get_prop(v, "UID", 1, 0, 0));
1382                         ser = vcard_serialize(v);
1383                         if (ser != NULL) {
1384                                 vmsg->cm_fields[eMesageText] = malloc(strlen(ser) + 1024);
1385                                 sprintf(vmsg->cm_fields[eMesageText],
1386                                         "Content-type: " VCARD_MIME_TYPE
1387                                         "\r\n\r\n%s\r\n", ser);
1388                                 free(ser);
1389                         }
1390                         vcard_free(v);
1391
1392                         syslog(LOG_DEBUG, "Adding contact: %s", recipient);
1393                         CtdlSubmitMsg(vmsg, NULL, aptr->roomname, QP_EADDR);
1394                         CtdlFreeMessage(vmsg);
1395                 }
1396         }
1397
1398         free(aptr->roomname);
1399         free(aptr->collected_addresses);
1400         free(aptr);
1401 }
1402
1403
1404 /*
1405  * When a user sends a message, we may harvest one or more email addresses
1406  * from the recipient list to be added to the user's address book.  But we
1407  * want to do this asynchronously so it doesn't keep the user waiting.
1408  */
1409 void store_harvested_addresses(void) {
1410
1411         struct addresses_to_be_filed *aptr = NULL;
1412
1413         if (atbf == NULL) return;
1414
1415         begin_critical_section(S_ATBF);
1416         while (atbf != NULL) {
1417                 aptr = atbf;
1418                 atbf = atbf->next;
1419                 end_critical_section(S_ATBF);
1420                 store_this_ha(aptr);
1421                 begin_critical_section(S_ATBF);
1422         }
1423         end_critical_section(S_ATBF);
1424 }
1425
1426
1427 /* 
1428  * Function to output vCard data as plain text.  Nobody uses MSG0 anymore, so
1429  * really this is just so we expose the vCard data to the full text indexer.
1430  */
1431 void vcard_fixed_output(char *ptr, int len) {
1432         char *serialized_vcard;
1433         struct vCard *v;
1434         char *key, *value;
1435         int i = 0;
1436
1437         serialized_vcard = malloc(len + 1);
1438         safestrncpy(serialized_vcard, ptr, len+1);
1439         v = vcard_load(serialized_vcard);
1440         free(serialized_vcard);
1441
1442         i = 0;
1443         while (key = vcard_get_prop(v, "", 0, i, 1), key != NULL) {
1444                 value = vcard_get_prop(v, "", 0, i++, 0);
1445                 cprintf("%s\n", value);
1446         }
1447
1448         vcard_free(v);
1449 }
1450
1451
1452 const char *CitadelServiceDICT_TCP="DICT_TCP";
1453
1454 CTDL_MODULE_INIT(vcard)
1455 {
1456         struct ctdlroom qr;
1457         char filename[256];
1458         FILE *fp;
1459         int rv = 0;
1460
1461         if (!threading)
1462         {
1463                 CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN, PRIO_LOGIN + 70);
1464                 CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
1465                 CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
1466                 CtdlRegisterDeleteHook(vcard_delete_remove);
1467                 CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
1468                 CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
1469                 CtdlRegisterProtoHook(cmd_igab, "IGAB", "Initialize Global Address Book");
1470                 CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
1471                 CtdlRegisterProtoHook(cmd_gvsn, "GVSN", "Get Valid Screen Names");
1472                 CtdlRegisterProtoHook(cmd_gvea, "GVEA", "Get Valid Email Addresses");
1473                 CtdlRegisterProtoHook(cmd_dvca, "DVCA", "Dump VCard Addresses");
1474                 CtdlRegisterUserHook(vcard_newuser, EVT_NEWUSER);
1475                 CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
1476                 CtdlRegisterNetprocHook(vcard_extract_from_network);
1477                 CtdlRegisterSessionHook(store_harvested_addresses, EVT_TIMER, PRIO_CLEANUP + 470);
1478                 CtdlRegisterFixedOutputHook("text/x-vcard", vcard_fixed_output);
1479                 CtdlRegisterFixedOutputHook("text/vcard", vcard_fixed_output);
1480
1481                 /* Create the Global ADdress Book room if necessary */
1482                 CtdlCreateRoom(ADDRESS_BOOK_ROOM, 3, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1483
1484                 /* Set expiration policy to manual; otherwise objects will be lost! */
1485                 if (!CtdlGetRoomLock(&qr, ADDRESS_BOOK_ROOM)) {
1486                         qr.QRep.expire_mode = EXPIRE_MANUAL;
1487                         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1488                         CtdlPutRoomLock(&qr);
1489
1490                         /*
1491                          * Also make sure it has a netconfig file, so the networker runs
1492                          * on this room even if we don't share it with any other nodes.
1493                          * This allows the CANCEL messages (i.e. "Purge this vCard") to be
1494                          * purged.
1495                          */
1496                         assoc_file_name(filename, sizeof filename, &qr, ctdl_netcfg_dir);
1497                         fp = fopen(filename, "a");
1498                         if (fp != NULL) fclose(fp);
1499                         rv = chown(filename, CTDLUID, (-1));
1500                         if (rv == -1)
1501                                 syslog(LOG_EMERG, "Failed to adjust ownership of: %s [%s]", 
1502                                        filename, strerror(errno));
1503                         rv = chmod(filename, 0600);
1504                         if (rv == -1)
1505                                 syslog(LOG_EMERG, "Failed to adjust ownership of: %s [%s]", 
1506                                        filename, strerror(errno));
1507                 }
1508
1509                 /* for postfix tcpdict */
1510                 CtdlRegisterServiceHook(config.c_pftcpdict_port,        /* Postfix */
1511                                         NULL,
1512                                         check_get_greeting,
1513                                         check_get,
1514                                         NULL,
1515                                         CitadelServiceDICT_TCP);
1516         }
1517         
1518         /* return our module name for the log */
1519         return "vcard";
1520 }