Route all access to cm_fields[] through api functions
[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                 CM_SetField(msg, eAuthor, usbuf.fullname, strlen(usbuf.fullname));
429         }
430
431         /* Insert or replace RFC2739-compliant free/busy URL */
432         if (yes_my_citadel_config) {
433                 sprintf(buf, "http://%s/%s.vfb",
434                         config.c_fqdn,
435                         usbuf.fullname);
436                 for (i=0; buf[i]; ++i) {
437                         if (buf[i] == ' ') buf[i] = '_';
438                 }
439                 vcard_set_prop(v, "FBURL;PREF", buf, 0);
440         }
441
442         /* If the vCard has no UID, then give it one. */
443         s = vcard_get_prop(v, "UID", 1, 0, 0);
444         if (s == NULL) {
445                 generate_uuid(buf);
446                 vcard_set_prop(v, "UID", buf, 0);
447         }
448
449         /* Enforce local UID policy if applicable */
450         if (yes_my_citadel_config) {
451                 snprintf(buf, sizeof buf, VCARD_EXT_FORMAT, msg->cm_fields[eAuthor], NODENAME);
452                 vcard_set_prop(v, "UID", buf, 0);
453         }
454
455         /* 
456          * Set the EUID of the message to the UID of the vCard.
457          */
458         CM_FlushField(msg, eExclusiveID);
459
460         s = vcard_get_prop(v, "UID", 1, 0, 0);
461         if (s != NULL) {
462                 CM_SetField(msg, eExclusiveID, s, strlen(s));
463                 if (msg->cm_fields[eMsgSubject] == NULL) {
464                         CM_CopyField(msg, eMsgSubject, eExclusiveID);
465                 }
466         }
467
468         /*
469          * Set the Subject to the name in the vCard.
470          */
471         s = vcard_get_prop(v, "FN", 1, 0, 0);
472         if (s == NULL) {
473                 s = vcard_get_prop(v, "N", 1, 0, 0);
474         }
475         if (s != NULL) {
476                 CM_SetField(msg, eMsgSubject, s, strlen(s));
477         }
478
479         /* Re-serialize it back into the msg body */
480         ser = vcard_serialize(v);
481         if (ser != NULL) {
482                 StrBuf *buf;
483                 long serlen;
484
485                 serlen = strlen(ser);
486                 buf = NewStrBufPlain(NULL, serlen + 1024);
487
488                 StrBufAppendBufPlain(buf, HKEY("Content-type: " VCARD_MIME_TYPE "\r\n\r\n"), 0);
489                 StrBufAppendBufPlain(buf, ser, serlen, 0);
490                 StrBufAppendBufPlain(buf, HKEY("\r\n"), 0);
491                 CM_SetAsFieldSB(msg, eMesageText, &buf);
492                 free(ser);
493         }
494
495         /* Now allow the save to complete. */
496         vcard_free(v);
497         return(0);
498 }
499
500
501
502 /*
503  * This handler detects whether the user is attempting to save a new
504  * vCard as part of his/her personal configuration, and handles the replace
505  * function accordingly (copy the vCard from the config room to the global
506  * address book).
507  */
508 int vcard_upload_aftersave(struct CtdlMessage *msg) {
509         struct CitContext *CCC = CC;
510         char *ptr;
511         int linelen;
512         long I;
513         struct vCard *v;
514         int is_UserConf=0;
515         int is_MY_UserConf=0;
516         int is_GAB=0;
517         char roomname[ROOMNAMELEN];
518
519         if (msg->cm_format_type != 4) return(0);
520         if (!CCC->logged_in) return(0); /* Only do this if logged in. */
521
522         /* We're interested in user config rooms only. */
523
524         if ( (strlen(CCC->room.QRname) >= 12) && (!strcasecmp(&CCC->room.QRname[11], USERCONFIGROOM)) ) {
525                 is_UserConf = 1;        /* It's someone's config room */
526         }
527         CtdlMailboxName(roomname, sizeof roomname, &CCC->user, USERCONFIGROOM);
528         if (!strcasecmp(CCC->room.QRname, roomname)) {
529                 is_UserConf = 1;
530                 is_MY_UserConf = 1;     /* It's MY config room */
531         }
532         if (!strcasecmp(CCC->room.QRname, ADDRESS_BOOK_ROOM)) {
533                 is_GAB = 1;             /* It's the Global Address Book */
534         }
535
536         if (!is_UserConf && !is_GAB) return(0);
537
538         ptr = msg->cm_fields[eMesageText];
539         if (ptr == NULL) return(0);
540
541         NewStrBufDupAppendFlush(&CCC->StatusMessage, NULL, NULL, 0);
542
543         StrBufPrintf(CCC->StatusMessage, "%d\n", LISTING_FOLLOWS);
544
545         while (ptr != NULL) {
546         
547                 linelen = strcspn(ptr, "\n");
548                 if (linelen == 0) return(0);    /* end of headers */    
549                 
550                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
551                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
552                         /*
553                          * Bingo!  The user is uploading a new vCard, so
554                          * copy it to the Global Address Book room.
555                          */
556
557                         I = atol(msg->cm_fields[eVltMsgNum]);
558                         if (I <= 0L) return(0);
559
560                         /* Store our Internet return address in memory */
561                         if (is_MY_UserConf) {
562                                 v = vcard_load(msg->cm_fields[eMesageText]);
563                                 extract_inet_email_addrs(CCC->cs_inet_email, sizeof CCC->cs_inet_email,
564                                                 CCC->cs_inet_other_emails, sizeof CCC->cs_inet_other_emails,
565                                                 v, 1);
566                                 extract_friendly_name(CCC->cs_inet_fn, sizeof CCC->cs_inet_fn, v);
567                                 vcard_free(v);
568                         }
569
570                         if (!is_GAB)
571                         {       // This is not the GAB
572                                 /* Put it in the Global Address Book room... */
573                                 CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I, 1, msg);
574                         }
575
576                         /* ...and also in the directory database. */
577                         vcard_add_to_directory(I, NULL);
578
579                         /* Some sites want an Aide to be notified when a
580                          * user registers or re-registers
581                          * But if the user was an Aide or was edited by an Aide then we can
582                          * Assume they don't need validating.
583                          */
584                         if (CCC->user.axlevel >= AxAideU) {
585                                 CtdlGetUserLock(&CCC->user, CCC->curr_user);
586                                 CCC->user.flags |= US_REGIS;
587                                 CtdlPutUserLock(&CCC->user);
588                                 return (0);
589                         }
590                         
591                         set_mm_valid();
592
593                         /* ...which also means we need to flag the user */
594                         CtdlGetUserLock(&CCC->user, CCC->curr_user);
595                         CCC->user.flags |= (US_REGIS|US_NEEDVALID);
596                         CtdlPutUserLock(&CCC->user);
597
598                         return(0);
599                 }
600
601                 ptr = strchr((char *)ptr, '\n');
602                 if (ptr != NULL) ++ptr;
603         }
604
605         return(0);
606 }
607
608
609
610 /*
611  * back end function used for callbacks
612  */
613 void vcard_gu_backend(long supplied_msgnum, void *userdata) {
614         long *msgnum;
615
616         msgnum = (long *) userdata;
617         *msgnum = supplied_msgnum;
618 }
619
620
621 /*
622  * If this user has a vcard on disk, read it into memory, otherwise allocate
623  * and return an empty vCard.
624  */
625 struct vCard *vcard_get_user(struct ctdluser *u) {
626         struct CitContext *CCC = CC;
627         char hold_rm[ROOMNAMELEN];
628         char config_rm[ROOMNAMELEN];
629         struct CtdlMessage *msg = NULL;
630         struct vCard *v;
631         long VCmsgnum;
632
633         strcpy(hold_rm, CCC->room.QRname);      /* save current room */
634         CtdlMailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
635
636         if (CtdlGetRoom(&CCC->room, config_rm) != 0) {
637                 CtdlGetRoom(&CCC->room, hold_rm);
638                 return vcard_new();
639         }
640
641         /* We want the last (and probably only) vcard in this room */
642         VCmsgnum = (-1);
643         CtdlForEachMessage(MSGS_LAST, 1, NULL, "[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$",
644                 NULL, vcard_gu_backend, (void *)&VCmsgnum );
645         CtdlGetRoom(&CCC->room, hold_rm);       /* return to saved room */
646
647         if (VCmsgnum < 0L) return vcard_new();
648
649         msg = CtdlFetchMessage(VCmsgnum, 1);
650         if (msg == NULL) return vcard_new();
651
652         v = vcard_load(msg->cm_fields[eMesageText]);
653         CtdlFreeMessage(msg);
654         return v;
655 }
656
657
658 /*
659  * Store this user's vCard in the appropriate place
660  */
661 /*
662  * Write our config to disk
663  */
664 void vcard_write_user(struct ctdluser *u, struct vCard *v) {
665         char *ser;
666
667         ser = vcard_serialize(v);
668         if (ser == NULL) {
669                 ser = strdup("begin:vcard\r\nend:vcard\r\n");
670         }
671         if (!ser) return;
672
673         /* This handy API function does all the work for us.
674          * NOTE: normally we would want to set that last argument to 1, to
675          * force the system to delete the user's old vCard.  But it doesn't
676          * have to, because the vcard_upload_beforesave() hook above
677          * is going to notice what we're trying to do, and delete the old vCard.
678          */
679         CtdlWriteObject(USERCONFIGROOM,         /* which room */
680                         VCARD_MIME_TYPE,        /* MIME type */
681                         ser,                    /* data */
682                         strlen(ser)+1,          /* length */
683                         u,                      /* which user */
684                         0,                      /* not binary */
685                         0,                      /* don't delete others of this type */
686                         0);                     /* no flags */
687
688         free(ser);
689 }
690
691
692
693 /*
694  * Old style "enter registration info" command.  This function simply honors
695  * the REGI protocol command, translates the entered parameters into a vCard,
696  * and enters the vCard into the user's configuration.
697  */
698 void cmd_regi(char *argbuf) {
699         struct CitContext *CCC = CC;
700         int a,b,c;
701         char buf[SIZ];
702         struct vCard *my_vcard;
703
704         char tmpaddr[SIZ];
705         char tmpcity[SIZ];
706         char tmpstate[SIZ];
707         char tmpzip[SIZ];
708         char tmpaddress[SIZ];
709         char tmpcountry[SIZ];
710
711         unbuffer_output();
712
713         if (!(CCC->logged_in)) {
714                 cprintf("%d Not logged in.\n",ERROR + NOT_LOGGED_IN);
715                 return;
716         }
717
718         /* If users cannot create their own accounts, they cannot re-register either. */
719         if ( (config.c_disable_newu) && (CCC->user.axlevel < AxAideU) ) {
720                 cprintf("%d Self-service registration is not allowed here.\n",
721                         ERROR + HIGHER_ACCESS_REQUIRED);
722         }
723
724         my_vcard = vcard_get_user(&CCC->user);
725         strcpy(tmpaddr, "");
726         strcpy(tmpcity, "");
727         strcpy(tmpstate, "");
728         strcpy(tmpzip, "");
729         strcpy(tmpcountry, "USA");
730
731         cprintf("%d Send registration...\n", SEND_LISTING);
732         a=0;
733         while (client_getln(buf, sizeof buf), strcmp(buf,"000")) {
734                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
735                 if (a==1) strcpy(tmpaddr, buf);
736                 if (a==2) strcpy(tmpcity, buf);
737                 if (a==3) strcpy(tmpstate, buf);
738                 if (a==4) {
739                         for (c=0; buf[c]; ++c) {
740                                 if ((buf[c]>='0') && (buf[c]<='9')) {
741                                         b = strlen(tmpzip);
742                                         tmpzip[b] = buf[c];
743                                         tmpzip[b+1] = 0;
744                                 }
745                         }
746                 }
747                 if (a==5) vcard_set_prop(my_vcard, "tel", buf, 0);
748                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
749                 if (a==7) strcpy(tmpcountry, buf);
750                 ++a;
751         }
752
753         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
754                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
755         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
756         vcard_write_user(&CCC->user, my_vcard);
757         vcard_free(my_vcard);
758 }
759
760
761 /*
762  * Protocol command to fetch registration info for a user
763  */
764 void cmd_greg(char *argbuf)
765 {
766         struct CitContext *CCC = CC;
767         struct ctdluser usbuf;
768         struct vCard *v;
769         char *s;
770         char who[USERNAME_SIZE];
771         char adr[256];
772         char buf[256];
773
774         extract_token(who, argbuf, 0, '|', sizeof who);
775
776         if (!(CCC->logged_in)) {
777                 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
778                 return;
779         }
780
781         if (!strcasecmp(who,"_SELF_")) strcpy(who,CCC->curr_user);
782
783         if ((CCC->user.axlevel < AxAideU) && (strcasecmp(who,CCC->curr_user))) {
784                 cprintf("%d Higher access required.\n",
785                         ERROR + HIGHER_ACCESS_REQUIRED);
786                 return;
787         }
788
789         if (CtdlGetUser(&usbuf, who) != 0) {
790                 cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, who);
791                 return;
792         }
793
794         v = vcard_get_user(&usbuf);
795
796         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
797         cprintf("%ld\n", usbuf.usernum);
798         cprintf("%s\n", usbuf.password);
799         s = vcard_get_prop(v, "n", 1, 0, 0);
800         cprintf("%s\n", s ? s : " ");   /* name */
801
802         s = vcard_get_prop(v, "adr", 1, 0, 0);
803         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
804
805         extract_token(buf, adr, 2, ';', sizeof buf);
806         cprintf("%s\n", buf);                           /* street */
807         extract_token(buf, adr, 3, ';', sizeof buf);
808         cprintf("%s\n", buf);                           /* city */
809         extract_token(buf, adr, 4, ';', sizeof buf);
810         cprintf("%s\n", buf);                           /* state */
811         extract_token(buf, adr, 5, ';', sizeof buf);
812         cprintf("%s\n", buf);                           /* zip */
813
814         s = vcard_get_prop(v, "tel", 1, 0, 0);
815         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
816         if (s != NULL) {
817                 cprintf("%s\n", s);
818         }
819         else {
820                 cprintf(" \n");
821         }
822
823         cprintf("%d\n", usbuf.axlevel);
824
825         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
826         cprintf("%s\n", s ? s : " ");
827         s = vcard_get_prop(v, "adr", 0, 0, 0);
828         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
829
830         extract_token(buf, adr, 6, ';', sizeof buf);
831         cprintf("%s\n", buf);                           /* country */
832         cprintf("000\n");
833         vcard_free(v);
834 }
835
836
837
838 /*
839  * When a user is being created, create his/her vCard.
840  */
841 void vcard_newuser(struct ctdluser *usbuf) {
842         char vname[256];
843         char buf[256];
844         int i;
845         struct vCard *v;
846
847         vcard_fn_to_n(vname, usbuf->fullname, sizeof vname);
848         syslog(LOG_DEBUG, "Converted <%s> to <%s>", usbuf->fullname, vname);
849
850         /* Create and save the vCard */
851         v = vcard_new();
852         if (v == NULL) return;
853         vcard_add_prop(v, "fn", usbuf->fullname);
854         vcard_add_prop(v, "n", vname);
855         vcard_add_prop(v, "adr", "adr:;;_;_;_;00000;__");
856
857 #ifdef HAVE_GETPWUID_R
858         /* If using host auth mode, we add an email address based on the login */
859         if (config.c_auth_mode == AUTHMODE_HOST) {
860                 struct passwd pwd;
861                 char pwd_buffer[SIZ];
862                 
863 #ifdef SOLARIS_GETPWUID
864                 if (getpwuid_r(usbuf->uid, &pwd, pwd_buffer, sizeof pwd_buffer) != NULL) {
865 #else // SOLARIS_GETPWUID
866                 struct passwd *result = NULL;
867                 syslog(LOG_DEBUG, "Searching for uid %d", usbuf->uid);
868                 if (getpwuid_r(usbuf->uid, &pwd, pwd_buffer, sizeof pwd_buffer, &result) == 0) {
869 #endif // HAVE_GETPWUID_R
870                         snprintf(buf, sizeof buf, "%s@%s", pwd.pw_name, config.c_fqdn);
871                         vcard_add_prop(v, "email;internet", buf);
872                 }
873         }
874 #endif
875
876         /* Everyone gets an email address based on their display name */
877         snprintf(buf, sizeof buf, "%s@%s", usbuf->fullname, config.c_fqdn);
878         for (i=0; buf[i]; ++i) {
879                 if (buf[i] == ' ') buf[i] = '_';
880         }
881         vcard_add_prop(v, "email;internet", buf);
882
883
884         vcard_write_user(usbuf, v);
885         vcard_free(v);
886 }
887
888
889 /*
890  * When a user is being deleted, we have to remove his/her vCard.
891  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
892  * field, and the same Exclusive ID as the existing card.
893  */
894 void vcard_purge(struct ctdluser *usbuf) {
895         struct CtdlMessage *msg;
896         char buf[SIZ];
897         long len;
898
899         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
900         if (msg == NULL) return;
901         memset(msg, 0, sizeof(struct CtdlMessage));
902
903         msg->cm_magic = CTDLMESSAGE_MAGIC;
904         msg->cm_anon_type = MES_NORMAL;
905         msg->cm_format_type = 0;
906         CM_SetField(msg, eAuthor, usbuf->fullname, strlen(usbuf->fullname));
907         CM_SetField(msg, eOriginalRoom, HKEY(ADDRESS_BOOK_ROOM));
908         CM_SetField(msg, eNodeName, NODENAME, strlen(NODENAME));
909         CM_SetField(msg, eMesageText, HKEY("Purge this vCard\n"));
910
911         len = snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
912                        msg->cm_fields[eAuthor], NODENAME);
913         CM_SetField(msg, eExclusiveID, buf, len);
914
915         CM_SetField(msg, eSpecialField, HKEY("CANCEL"));
916
917         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM, QP_EADDR);
918         CtdlFreeMessage(msg);
919 }
920
921
922 /*
923  * Grab vCard directory stuff out of incoming network messages
924  */
925 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
926         char *ptr;
927         int linelen;
928
929         if (msg == NULL) return(0);
930
931         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
932                 return(0);
933         }
934
935         if (msg->cm_format_type != 4) return(0);
936
937         ptr = msg->cm_fields[eMesageText];
938         if (ptr == NULL) return(0);
939         while (ptr != NULL) {
940         
941                 linelen = strcspn(ptr, "\n");
942                 if (linelen == 0) return(0);    /* end of headers */    
943                 
944                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
945                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
946                         /* It's a vCard.  Add it to the directory. */
947                         vcard_extract_internet_addresses(msg, CtdlDirectoryAddUser);
948                         return(0);
949                 }
950
951                 ptr = strchr((char *)ptr, '\n');
952                 if (ptr != NULL) ++ptr;
953         }
954
955         return(0);
956 }
957
958
959
960 /* 
961  * When a vCard is being removed from the Global Address Book room, remove it
962  * from the directory as well.
963  */
964 void vcard_delete_remove(char *room, long msgnum) {
965         struct CtdlMessage *msg;
966         char *ptr;
967         int linelen;
968
969         if (msgnum <= 0L) return;
970         
971         if (room == NULL) return;
972
973         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
974                 return;
975         }
976
977         msg = CtdlFetchMessage(msgnum, 1);
978         if (msg == NULL) return;
979
980         ptr = msg->cm_fields[eMesageText];
981         if (ptr == NULL) goto EOH;
982         while (ptr != NULL) {
983                 linelen = strcspn(ptr, "\n");
984                 if (linelen == 0) goto EOH;
985                 
986                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
987                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
988                         /* Bingo!  A vCard is being deleted. */
989                         vcard_extract_internet_addresses(msg, CtdlDirectoryDelUser);
990                 }
991                 ptr = strchr((char *)ptr, '\n');
992                 if (ptr != NULL) ++ptr;
993         }
994
995 EOH:    CtdlFreeMessage(msg);
996 }
997
998
999
1000 /*
1001  * Get Valid Screen Names
1002  */
1003 void cmd_gvsn(char *argbuf)
1004 {
1005         struct CitContext *CCC = CC;
1006
1007         if (CtdlAccessCheck(ac_logged_in)) return;
1008
1009         cprintf("%d valid screen names:\n", LISTING_FOLLOWS);
1010         cprintf("%s\n", CCC->user.fullname);
1011         if ( (!IsEmptyStr(CCC->cs_inet_fn)) && (strcasecmp(CCC->user.fullname, CCC->cs_inet_fn)) ) {
1012                 cprintf("%s\n", CCC->cs_inet_fn);
1013         }
1014         cprintf("000\n");
1015 }
1016
1017
1018 /*
1019  * Get Valid Email Addresses
1020  */
1021 void cmd_gvea(char *argbuf)
1022 {
1023         struct CitContext *CCC = CC;
1024         int num_secondary_emails = 0;
1025         int i;
1026         char buf[256];
1027
1028         if (CtdlAccessCheck(ac_logged_in)) return;
1029
1030         cprintf("%d valid email addresses:\n", LISTING_FOLLOWS);
1031         if (!IsEmptyStr(CCC->cs_inet_email)) {
1032                 cprintf("%s\n", CCC->cs_inet_email);
1033         }
1034         if (!IsEmptyStr(CCC->cs_inet_other_emails)) {
1035                 num_secondary_emails = num_tokens(CCC->cs_inet_other_emails, '|');
1036                 for (i=0; i<num_secondary_emails; ++i) {
1037                         extract_token(buf, CCC->cs_inet_other_emails,i,'|',sizeof CCC->cs_inet_other_emails);
1038                         cprintf("%s\n", buf);
1039                 }
1040         }
1041         cprintf("000\n");
1042 }
1043
1044
1045
1046
1047 /*
1048  * Callback function for cmd_dvca() that hunts for vCard content types
1049  * and outputs any email addresses found within.
1050  */
1051 void dvca_mime_callback(char *name, char *filename, char *partnum, char *disp,
1052                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1053                 char *cbid, void *cbuserdata) {
1054
1055         struct vCard *v;
1056         char displayname[256] = "";
1057         int displayname_len;
1058         char emailaddr[256] = "";
1059         int i;
1060         int has_commas = 0;
1061
1062         if ( (strcasecmp(cbtype, "text/vcard")) && (strcasecmp(cbtype, "text/x-vcard")) ) {
1063                 return;
1064         }
1065
1066         v = vcard_load(content);
1067         if (v == NULL) return;
1068
1069         extract_friendly_name(displayname, sizeof displayname, v);
1070         extract_inet_email_addrs(emailaddr, sizeof emailaddr, NULL, 0, v, 0);
1071
1072         displayname_len = strlen(displayname);
1073         for (i=0; i<displayname_len; ++i) {
1074                 if (displayname[i] == '\"') displayname[i] = ' ';
1075                 if (displayname[i] == ';') displayname[i] = ',';
1076                 if (displayname[i] == ',') has_commas = 1;
1077         }
1078         striplt(displayname);
1079
1080         cprintf("%s%s%s <%s>\n",
1081                 (has_commas ? "\"" : ""),
1082                 displayname,
1083                 (has_commas ? "\"" : ""),
1084                 emailaddr
1085         );
1086
1087         vcard_free(v);
1088 }
1089
1090
1091 /*
1092  * Back end callback function for cmd_dvca()
1093  *
1094  * It's basically just passed a list of message numbers, which we're going
1095  * to fetch off the disk and then pass along to the MIME parser via another
1096  * layer of callback...
1097  */
1098 void dvca_callback(long msgnum, void *userdata) {
1099         struct CtdlMessage *msg = NULL;
1100
1101         msg = CtdlFetchMessage(msgnum, 1);
1102         if (msg == NULL) return;
1103         mime_parser(msg->cm_fields[eMesageText],
1104                 NULL,
1105                 *dvca_mime_callback,    /* callback function */
1106                 NULL, NULL,
1107                 NULL,                   /* user data */
1108                 0
1109         );
1110         CtdlFreeMessage(msg);
1111 }
1112
1113
1114 /*
1115  * Dump VCard Addresses
1116  */
1117 void cmd_dvca(char *argbuf)
1118 {
1119         if (CtdlAccessCheck(ac_logged_in)) return;
1120
1121         cprintf("%d addresses:\n", LISTING_FOLLOWS);
1122         CtdlForEachMessage(MSGS_ALL, 0, NULL, NULL, NULL, dvca_callback, NULL);
1123         cprintf("000\n");
1124 }
1125
1126
1127 /*
1128  * Query Directory
1129  */
1130 void cmd_qdir(char *argbuf) {
1131         char citadel_addr[256];
1132         char internet_addr[256];
1133
1134         if (CtdlAccessCheck(ac_logged_in)) return;
1135
1136         extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1137
1138         if (CtdlDirectoryLookup(citadel_addr, internet_addr, sizeof citadel_addr) != 0) {
1139                 cprintf("%d %s was not found.\n",
1140                         ERROR + NO_SUCH_USER, internet_addr);
1141                 return;
1142         }
1143
1144         cprintf("%d %s\n", CIT_OK, citadel_addr);
1145 }
1146
1147 /*
1148  * Query Directory, in fact an alias to match postfix tcp auth.
1149  */
1150 void check_get(void) {
1151         char internet_addr[256];
1152
1153         char cmdbuf[SIZ];
1154
1155         time(&CC->lastcmd);
1156         memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
1157         if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
1158                 syslog(LOG_CRIT, "vcard client disconnected: ending session.");
1159                 CC->kill_me = KILLME_CLIENT_DISCONNECTED;
1160                 return;
1161         }
1162         syslog(LOG_INFO, ": %s", cmdbuf);
1163         while (strlen(cmdbuf) < 3) strcat(cmdbuf, " ");
1164         syslog(LOG_INFO, "[ %s]", cmdbuf);
1165         
1166         if (strncasecmp(cmdbuf, "GET ", 4)==0)
1167         {
1168                 struct recptypes *rcpt;
1169                 char *argbuf = &cmdbuf[4];
1170                 
1171                 extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1172                 rcpt = validate_recipients(internet_addr, NULL, CHECK_EXISTANCE);
1173                 if ((rcpt != NULL)&&
1174                         (
1175                          (*rcpt->recp_local != '\0')||
1176                          (*rcpt->recp_room != '\0')||
1177                          (*rcpt->recp_ignet != '\0')))
1178                 {
1179
1180                         cprintf("200 OK %s\n", internet_addr);
1181                         syslog(LOG_INFO, "sending 200 OK for the room %s", rcpt->display_recp);
1182                 }
1183                 else 
1184                 {
1185                         cprintf("500 REJECT noone here by that name.\n");
1186                         
1187                         syslog(LOG_INFO, "sending 500 REJECT no one here by that name: %s", internet_addr);
1188                 }
1189                 if (rcpt != NULL) 
1190                         free_recipients(rcpt);
1191         }
1192         else {
1193                 cprintf("500 REJECT invalid Query.\n");
1194                 syslog(LOG_INFO, "sending 500 REJECT invalid query: %s", internet_addr);
1195         }
1196 }
1197
1198 void check_get_greeting(void) {
1199 /* dummy function, we have no greeting in this verry simple protocol. */
1200 }
1201
1202
1203 /*
1204  * We don't know if the Contacts room exists so we just create it at login
1205  */
1206 void vcard_CtdlCreateRoom(void)
1207 {
1208         struct ctdlroom qr;
1209         visit vbuf;
1210
1211         /* Create the calendar room if it doesn't already exist */
1212         CtdlCreateRoom(USERCONTACTSROOM, 4, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1213
1214         /* Set expiration policy to manual; otherwise objects will be lost! */
1215         if (CtdlGetRoomLock(&qr, USERCONTACTSROOM)) {
1216                 syslog(LOG_ERR, "Couldn't get the user CONTACTS room!");
1217                 return;
1218         }
1219         qr.QRep.expire_mode = EXPIRE_MANUAL;
1220         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1221         CtdlPutRoomLock(&qr);
1222
1223         /* Set the view to a calendar view */
1224         CtdlGetRelationship(&vbuf, &CC->user, &qr);
1225         vbuf.v_view = 2;        /* 2 = address book view */
1226         CtdlSetRelationship(&vbuf, &CC->user, &qr);
1227
1228         return;
1229 }
1230
1231
1232
1233
1234 /*
1235  * When a user logs in...
1236  */
1237 void vcard_session_login_hook(void) {
1238         struct vCard *v = NULL;
1239         struct CitContext *CCC = CC;            /* put this on the stack, just for speed */
1240
1241 #ifdef HAVE_LDAP
1242         /*
1243          * Is this an LDAP session?  If so, copy various LDAP attributes from the directory entry
1244          * into the user's vCard.
1245          */
1246         if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
1247                 v = vcard_get_user(&CCC->user);
1248                 if (v) {
1249                         if (Ctdl_LDAP_to_vCard(CCC->ldap_dn, v)) {
1250                                 vcard_write_user(&CCC->user, v);
1251                         }
1252                 }
1253         }
1254 #endif
1255
1256         /*
1257          * Extract from the user's vCard, any Internet email addresses and the user's real name.
1258          * These are inserted into the session data for various message entry commands to use.
1259          */
1260         v = vcard_get_user(&CCC->user);
1261         if (v) {
1262                 extract_inet_email_addrs(CCC->cs_inet_email, sizeof CCC->cs_inet_email,
1263                                         CCC->cs_inet_other_emails, sizeof CCC->cs_inet_other_emails,
1264                                         v, 1
1265                 );
1266                 extract_friendly_name(CCC->cs_inet_fn, sizeof CCC->cs_inet_fn, v);
1267                 vcard_free(v);
1268         }
1269
1270         /*
1271          * Create the user's 'Contacts' room (personal address book) if it doesn't already exist.
1272          */
1273         vcard_CtdlCreateRoom();
1274 }
1275
1276
1277 /* 
1278  * Turn an arbitrary RFC822 address into a struct vCard for possible
1279  * inclusion into an address book.
1280  */
1281 struct vCard *vcard_new_from_rfc822_addr(char *addr) {
1282         struct vCard *v;
1283         char user[256], node[256], name[256], email[256], n[256], uid[256];
1284         int i;
1285
1286         v = vcard_new();
1287         if (v == NULL) return(NULL);
1288
1289         process_rfc822_addr(addr, user, node, name);
1290         vcard_set_prop(v, "fn", name, 0);
1291
1292         vcard_fn_to_n(n, name, sizeof n);
1293         vcard_set_prop(v, "n", n, 0);
1294
1295         snprintf(email, sizeof email, "%s@%s", user, node);
1296         vcard_set_prop(v, "email;internet", email, 0);
1297
1298         snprintf(uid, sizeof uid, "collected: %s %s@%s", name, user, node);
1299         for (i=0; uid[i]; ++i) {
1300                 if (isspace(uid[i])) uid[i] = '_';
1301                 uid[i] = tolower(uid[i]);
1302         }
1303         vcard_set_prop(v, "UID", uid, 0);
1304
1305         return(v);
1306 }
1307
1308
1309
1310 /*
1311  * This is called by store_harvested_addresses() to remove from the
1312  * list any addresses we already have in our address book.
1313  */
1314 void strip_addresses_already_have(long msgnum, void *userdata) {
1315         char *collected_addresses;
1316         struct CtdlMessage *msg = NULL;
1317         struct vCard *v;
1318         char *value = NULL;
1319         int i, j;
1320         char addr[256], user[256], node[256], name[256];
1321
1322         collected_addresses = (char *)userdata;
1323
1324         msg = CtdlFetchMessage(msgnum, 1);
1325         if (msg == NULL) return;
1326         v = vcard_load(msg->cm_fields[eMesageText]);
1327         CtdlFreeMessage(msg);
1328
1329         i = 0;
1330         while (value = vcard_get_prop(v, "email", 1, i++, 0), value != NULL) {
1331
1332                 for (j=0; j<num_tokens(collected_addresses, ','); ++j) {
1333                         extract_token(addr, collected_addresses, j, ',', sizeof addr);
1334
1335                         /* Remove the address if we already have it! */
1336                         process_rfc822_addr(addr, user, node, name);
1337                         snprintf(addr, sizeof addr, "%s@%s", user, node);
1338                         if (!strcasecmp(value, addr)) {
1339                                 remove_token(collected_addresses, j, ',');
1340                         }
1341                 }
1342
1343         }
1344
1345         vcard_free(v);
1346 }
1347
1348
1349
1350 /*
1351  * Back end function for store_harvested_addresses()
1352  */
1353 void store_this_ha(struct addresses_to_be_filed *aptr) {
1354         struct CtdlMessage *vmsg = NULL;
1355         char *ser = NULL;
1356         struct vCard *v = NULL;
1357         char recipient[256];
1358         int i;
1359
1360         /* First remove any addresses we already have in the address book */
1361         CtdlUserGoto(aptr->roomname, 0, 0, NULL, NULL);
1362         CtdlForEachMessage(MSGS_ALL, 0, NULL, "[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$", NULL,
1363                 strip_addresses_already_have, aptr->collected_addresses);
1364
1365         if (!IsEmptyStr(aptr->collected_addresses))
1366            for (i=0; i<num_tokens(aptr->collected_addresses, ','); ++i) {
1367
1368                 /* Make a vCard out of each address */
1369                 extract_token(recipient, aptr->collected_addresses, i, ',', sizeof recipient);
1370                 striplt(recipient);
1371                 v = vcard_new_from_rfc822_addr(recipient);
1372                 if (v != NULL) {
1373                         const char *s;
1374                         vmsg = malloc(sizeof(struct CtdlMessage));
1375                         memset(vmsg, 0, sizeof(struct CtdlMessage));
1376                         vmsg->cm_magic = CTDLMESSAGE_MAGIC;
1377                         vmsg->cm_anon_type = MES_NORMAL;
1378                         vmsg->cm_format_type = FMT_RFC822;
1379                         CM_SetField(vmsg, eAuthor, HKEY("Citadel"));
1380                         s = vcard_get_prop(v, "UID", 1, 0, 0);
1381                         CM_SetField(vmsg, eExclusiveID, s, strlen(s));
1382                         ser = vcard_serialize(v);
1383                         if (ser != NULL) {
1384                                 StrBuf *buf;
1385                                 long serlen;
1386                                 
1387                                 serlen = strlen(ser);
1388                                 buf = NewStrBufPlain(NULL, serlen + 1024);
1389
1390                                 StrBufAppendBufPlain(buf, HKEY("Content-type: " VCARD_MIME_TYPE "\r\n\r\n"), 0);
1391                                 StrBufAppendBufPlain(buf, ser, serlen, 0);
1392                                 StrBufAppendBufPlain(buf, HKEY("\r\n"), 0);
1393                                 CM_SetAsFieldSB(vmsg, eMesageText, &buf);
1394                                 free(ser);
1395                         }
1396                         vcard_free(v);
1397
1398                         syslog(LOG_DEBUG, "Adding contact: %s", recipient);
1399                         CtdlSubmitMsg(vmsg, NULL, aptr->roomname, QP_EADDR);
1400                         CtdlFreeMessage(vmsg);
1401                 }
1402         }
1403
1404         free(aptr->roomname);
1405         free(aptr->collected_addresses);
1406         free(aptr);
1407 }
1408
1409
1410 /*
1411  * When a user sends a message, we may harvest one or more email addresses
1412  * from the recipient list to be added to the user's address book.  But we
1413  * want to do this asynchronously so it doesn't keep the user waiting.
1414  */
1415 void store_harvested_addresses(void) {
1416
1417         struct addresses_to_be_filed *aptr = NULL;
1418
1419         if (atbf == NULL) return;
1420
1421         begin_critical_section(S_ATBF);
1422         while (atbf != NULL) {
1423                 aptr = atbf;
1424                 atbf = atbf->next;
1425                 end_critical_section(S_ATBF);
1426                 store_this_ha(aptr);
1427                 begin_critical_section(S_ATBF);
1428         }
1429         end_critical_section(S_ATBF);
1430 }
1431
1432
1433 /* 
1434  * Function to output vCard data as plain text.  Nobody uses MSG0 anymore, so
1435  * really this is just so we expose the vCard data to the full text indexer.
1436  */
1437 void vcard_fixed_output(char *ptr, int len) {
1438         char *serialized_vcard;
1439         struct vCard *v;
1440         char *key, *value;
1441         int i = 0;
1442
1443         serialized_vcard = malloc(len + 1);
1444         safestrncpy(serialized_vcard, ptr, len+1);
1445         v = vcard_load(serialized_vcard);
1446         free(serialized_vcard);
1447
1448         i = 0;
1449         while (key = vcard_get_prop(v, "", 0, i, 1), key != NULL) {
1450                 value = vcard_get_prop(v, "", 0, i++, 0);
1451                 cprintf("%s\n", value);
1452         }
1453
1454         vcard_free(v);
1455 }
1456
1457
1458 const char *CitadelServiceDICT_TCP="DICT_TCP";
1459
1460 CTDL_MODULE_INIT(vcard)
1461 {
1462         struct ctdlroom qr;
1463         char filename[256];
1464         FILE *fp;
1465         int rv = 0;
1466
1467         if (!threading)
1468         {
1469                 CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN, PRIO_LOGIN + 70);
1470                 CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
1471                 CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
1472                 CtdlRegisterDeleteHook(vcard_delete_remove);
1473                 CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
1474                 CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
1475                 CtdlRegisterProtoHook(cmd_igab, "IGAB", "Initialize Global Address Book");
1476                 CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
1477                 CtdlRegisterProtoHook(cmd_gvsn, "GVSN", "Get Valid Screen Names");
1478                 CtdlRegisterProtoHook(cmd_gvea, "GVEA", "Get Valid Email Addresses");
1479                 CtdlRegisterProtoHook(cmd_dvca, "DVCA", "Dump VCard Addresses");
1480                 CtdlRegisterUserHook(vcard_newuser, EVT_NEWUSER);
1481                 CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
1482                 CtdlRegisterNetprocHook(vcard_extract_from_network);
1483                 CtdlRegisterSessionHook(store_harvested_addresses, EVT_TIMER, PRIO_CLEANUP + 470);
1484                 CtdlRegisterFixedOutputHook("text/x-vcard", vcard_fixed_output);
1485                 CtdlRegisterFixedOutputHook("text/vcard", vcard_fixed_output);
1486
1487                 /* Create the Global ADdress Book room if necessary */
1488                 CtdlCreateRoom(ADDRESS_BOOK_ROOM, 3, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1489
1490                 /* Set expiration policy to manual; otherwise objects will be lost! */
1491                 if (!CtdlGetRoomLock(&qr, ADDRESS_BOOK_ROOM)) {
1492                         qr.QRep.expire_mode = EXPIRE_MANUAL;
1493                         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1494                         CtdlPutRoomLock(&qr);
1495
1496                         /*
1497                          * Also make sure it has a netconfig file, so the networker runs
1498                          * on this room even if we don't share it with any other nodes.
1499                          * This allows the CANCEL messages (i.e. "Purge this vCard") to be
1500                          * purged.
1501                          */
1502                         assoc_file_name(filename, sizeof filename, &qr, ctdl_netcfg_dir);
1503                         fp = fopen(filename, "a");
1504                         if (fp != NULL) fclose(fp);
1505                         rv = chown(filename, CTDLUID, (-1));
1506                         if (rv == -1)
1507                                 syslog(LOG_EMERG, "Failed to adjust ownership of: %s [%s]", 
1508                                        filename, strerror(errno));
1509                         rv = chmod(filename, 0600);
1510                         if (rv == -1)
1511                                 syslog(LOG_EMERG, "Failed to adjust ownership of: %s [%s]", 
1512                                        filename, strerror(errno));
1513                 }
1514
1515                 /* for postfix tcpdict */
1516                 CtdlRegisterServiceHook(config.c_pftcpdict_port,        /* Postfix */
1517                                         NULL,
1518                                         check_get_greeting,
1519                                         check_get,
1520                                         NULL,
1521                                         CitadelServiceDICT_TCP);
1522         }
1523         
1524         /* return our module name for the log */
1525         return "vcard";
1526 }