citadel/modules/vcard/serv_vcard.c

   1 /*
   2  * $Id$
   3  *
   4  * A server-side module for Citadel which supports address book information
   5  * using the standard vCard format.
   6  *
   7  * Copyright (c) 1999-2007 / released under the GNU General Public License
   8  */
   9
  10 /*
  11  * Format of the "Exclusive ID" field of the message containing a user's
  12  * vCard.  Doesn't matter what it really looks like as long as it's both
  13  * unique and consistent (because we use it for replication checking to
  14  * delete the old vCard network-wide when the user enters a new one).
  15  */
  16 #define VCARD_EXT_FORMAT        "Citadel vCard: personal card for %s at %s"
  17
  18 /*
  19  * Citadel will accept either text/vcard or text/x-vcard as the MIME type
  20  * for a vCard.  The following definition determines which one it *generates*
  21  * when serializing.
  22  */
  23 #define VCARD_MIME_TYPE         "text/x-vcard"
  24
  25 #include "sysdep.h"
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28 #include <stdio.h>
  29 #include <fcntl.h>
  30 #include <signal.h>
  31 #include <pwd.h>
  32 #include <errno.h>
  33 #include <ctype.h>
  34 #include <sys/types.h>
  35
  36 #if TIME_WITH_SYS_TIME
  37 # include <sys/time.h>
  38 # include <time.h>
  39 #else
  40 # if HAVE_SYS_TIME_H
  41 #  include <sys/time.h>
  42 # else
  43 #  include <time.h>
  44 # endif
  45 #endif
  46
  47 #include <sys/wait.h>
  48 #include <string.h>
  49 #include <limits.h>
  50 #include "citadel.h"
  51 #include "server.h"
  52 #include "citserver.h"
  53 #include "support.h"
  54 #include "config.h"
  55 #include "control.h"
  56 #include "room_ops.h"
  57 #include "user_ops.h"
  58 #include "policy.h"
  59 #include "database.h"
  60 #include "msgbase.h"
  61 #include "internet_addressing.h"
  62 #include "tools.h"
  63 #include "mime_parser.h"
  64 #include "vcard.h"
  65 #include "serv_vcard.h"
  66
  67 #include "ctdl_module.h"
  68
  69
  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,
  89                                 void (*callback)(char *, char *) ) {
  90         struct vCard *v;
  91         char *s;
  92         char *addr;
  93         char citadel_address[SIZ];
  94         int instance = 0;
  95         int found_something = 0;
  96
  97         if (msg->cm_fields['A'] == NULL) return;
  98         if (msg->cm_fields['N'] == NULL) return;
  99         snprintf(citadel_address, sizeof citadel_address, "%s @ %s",
 100                 msg->cm_fields['A'], msg->cm_fields['N']);
 101
 102         v = vcard_load(msg->cm_fields['M']);
 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;internet", 0, instance++, 0);
 110                 if (s != NULL) {
 111                         addr = strdup(s);
 112                         striplt(addr);
 113                         if (!IsEmptyStr(addr)) {
 114                                 if (callback != NULL) {
 115                                         callback(addr, citadel_address);
 116                                 }
 117                         }
 118                         free(addr);
 119                         found_something = 1;
 120                 }
 121                 else {
 122                         found_something = 0;
 123                 }
 124         } while(found_something);
 125
 126         vcard_free(v);
 127 }
 128
 129
 130 /*
 131  * vCard-to-LDAP conversions.
 132  *
 133  * If 'op' is set to V2L_WRITE, then write
 134  * (add, or change if already exists) a directory entry to the
 135  * LDAP server, based on the information supplied in a vCard.
 136  *
 137  * If 'op' is set to V2L_DELETE, then delete the entry from LDAP.
 138  */
 139
 140
 141 void ctdl_vcard_to_directory(struct CtdlMessage *msg, int op) {
 142         struct vCard *v = NULL;
 143         int i;
 144         int num_emails = 0;
 145         int num_phones = 0;
 146         int have_addr = 0;
 147         int have_cn = 0;
 148
 149         void *objectlist = NULL;
 150
 151         char givenname[128];
 152         char sn[128];
 153         char uid[256];
 154         char street[256];
 155         char city[128];
 156         char state[3];
 157         char zipcode[10];
 158         char calFBURL[256];
 159
 160         if (msg == NULL) return;
 161         if (msg->cm_fields['M'] == NULL) return;
 162         if (msg->cm_fields['A'] == NULL) return;
 163         if (msg->cm_fields['N'] == NULL) return;
 164
 165         /* Initialize variables */
 166         strcpy(givenname, "");
 167         strcpy(sn, "");
 168         strcpy(calFBURL, "");
 169
 170         sprintf(uid, "%s@%s",
 171                 msg->cm_fields['A'],
 172                 msg->cm_fields['N']
 173         );
 174
 175         /* Are we just deleting?  If so, it's simple... */
 176         if (op == V2L_DELETE) {
 177                 (void) CtdlDoDirectoryServiceFunc (msg->cm_fields['A'], msg->cm_fields['N'], NULL, "ldap", DIRECTORY_USER_DEL);
 178                 return;
 179         }
 180
 181         /*
 182          * If we get to this point then it must be a V2L_WRITE operation.
 183          */
 184
 185         /* First make sure the OU for the user's home Citadel host is created */
 186         (void) CtdlDoDirectoryServiceFunc (NULL, msg->cm_fields['N'], NULL, "ldap", DIRECTORY_CREATE_HOST);
 187
 188         /* Next create the directory service object */
 189         (void) CtdlDoDirectoryServiceFunc(NULL, NULL, &objectlist, "ldap", DIRECTORY_CREATE_OBJECT);
 190
 191         /* The first LDAP attribute will be an 'objectclass' list.  Citadel
 192          * doesn't do anything with this.  It's just there for compatibility
 193          * with Kolab.
 194          */
 195         (void) CtdlDoDirectoryServiceFunc("objectclass", "citadelInetOrgPerson", &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 196
 197         /* Convert the vCard fields to LDAP properties */
 198         v = vcard_load(msg->cm_fields['M']);
 199         if (v->numprops) for (i=0; i<(v->numprops); ++i) if (striplt(v->prop[i].value), strlen(v->prop[i].value) > 0) {
 200
 201                 if (!strcasecmp(v->prop[i].name, "n")) {
 202                         extract_token(sn,               v->prop[i].value, 0, ';', sizeof sn);
 203                         extract_token(givenname,        v->prop[i].value, 1, ';', sizeof givenname);
 204                 }
 205
 206                 if (!strcasecmp(v->prop[i].name, "fn")) {
 207                         (void) CtdlDoDirectoryServiceFunc("cn", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 208                         have_cn = 1;
 209                 }
 210
 211                 if (!strcasecmp(v->prop[i].name, "title")) {
 212                         (void) CtdlDoDirectoryServiceFunc("title", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 213                 }
 214
 215                 if (!strcasecmp(v->prop[i].name, "org")) {
 216                         (void) CtdlDoDirectoryServiceFunc("o", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 217                 }
 218
 219                 if ( (!strcasecmp(v->prop[i].name, "adr"))
 220                    ||(!strncasecmp(v->prop[i].name, "adr;", 4)) ) {
 221                         /* Unfortunately, we can only do a single address */
 222                         if (!have_addr) {
 223                                 have_addr = 1;
 224                                 strcpy(street, "");
 225                                 extract_token(&street[strlen(street)],
 226                                         v->prop[i].value, 0, ';', (sizeof street - strlen(street))); /* po box */
 227                                 strcat(street, " ");
 228                                 extract_token(&street[strlen(street)],
 229                                         v->prop[i].value, 1, ';', (sizeof street - strlen(street))); /* extend addr */
 230                                 strcat(street, " ");
 231                                 extract_token(&street[strlen(street)],
 232                                         v->prop[i].value, 2, ';', (sizeof street - strlen(street))); /* street */
 233                                 striplt(street);
 234                                 extract_token(city, v->prop[i].value, 3, ';', sizeof city);
 235                                 extract_token(state, v->prop[i].value, 4, ';', sizeof state);
 236                                 extract_token(zipcode, v->prop[i].value, 5, ';', sizeof zipcode);
 237
 238                                 (void) CtdlDoDirectoryServiceFunc("street", street, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 239                                 (void) CtdlDoDirectoryServiceFunc("l", city, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 240                                 (void) CtdlDoDirectoryServiceFunc("st", state, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 241                                 (void) CtdlDoDirectoryServiceFunc("postalcode", zipcode, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 242                         }
 243                 }
 244
 245                 if ( (!strcasecmp(v->prop[i].name, "tel"))
 246                    ||(!strncasecmp(v->prop[i].name, "tel;", 4)) ) {
 247                         ++num_phones;
 248                         /* The first 'tel' property creates the 'telephoneNumber' attribute */
 249                         if (num_phones == 1) {
 250                                 (void) CtdlDoDirectoryServiceFunc("telephoneNumber", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 251                         }
 252                         /* Subsequent 'tel' properties *add to* the 'telephoneNumber' attribute */
 253                         else {
 254                                 (void) CtdlDoDirectoryServiceFunc("telephoneNumber", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 255                         }
 256                 }
 257
 258
 259                 if ( (!strcasecmp(v->prop[i].name, "email"))
 260                    ||(!strcasecmp(v->prop[i].name, "email;internet")) ) {
 261
 262                         ++num_emails;
 263                         lprintf(CTDL_DEBUG, "email addr %d\n", num_emails);
 264
 265                         /* The first email address creates the 'mail' attribute */
 266                         if (num_emails == 1) {
 267                                 (void) CtdlDoDirectoryServiceFunc("mail", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 268                         }
 269                         /* The second and subsequent email address creates the 'alias' attribute */
 270                         else if (num_emails >= 2) {
 271                                 (void) CtdlDoDirectoryServiceFunc("alias", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 272                         }
 273                 }
 274
 275                 /* Calendar free/busy URL (take the first one we find, but if a subsequent
 276                  * one contains the "pref" designation then we go with that instead.)
 277                  */
 278                 if ( (!strcasecmp(v->prop[i].name, "fburl"))
 279                    ||(!strncasecmp(v->prop[i].name, "fburl;", 6)) ) {
 280                         if ( (IsEmptyStr(calFBURL))
 281                            || (!strncasecmp(v->prop[i].name, "fburl;pref", 10)) ) {
 282                                 safestrncpy(calFBURL, v->prop[i].value, sizeof calFBURL);
 283                         }
 284                 }
 285
 286         }
 287         vcard_free(v);  /* Don't need this anymore. */
 288
 289         /* "sn" (surname) based on info in vCard */
 290         (void) CtdlDoDirectoryServiceFunc("sn", sn, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 291
 292         /* "givenname" (first name) based on info in vCard */
 293         if (IsEmptyStr(givenname)) strcpy(givenname, "_");
 294         if (IsEmptyStr(sn)) strcpy(sn, "_");
 295         (void) CtdlDoDirectoryServiceFunc("givenname", givenname, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 296
 297         /* "uid" is a Kolab compatibility thing.  We just do cituser@citnode */
 298         (void) CtdlDoDirectoryServiceFunc("uid", uid, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 299
 300         /* Add a "cn" (Common Name) attribute based on the user's screen name,
 301          * but only there was no 'fn' (full name) property in the vCard
 302          */
 303         if (!have_cn) {
 304                 (void) CtdlDoDirectoryServiceFunc("cn", msg->cm_fields['A'], &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 305         }
 306
 307         /* Add a "calFBURL" attribute if a calendar free/busy URL exists */
 308         if (!IsEmptyStr(calFBURL)) {
 309                 (void) CtdlDoDirectoryServiceFunc("calFBURL", calFBURL, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 310         }
 311
 312         (void) CtdlDoDirectoryServiceFunc(msg->cm_fields['A'], msg->cm_fields['N'], &objectlist, "ldap", DIRECTORY_SAVE_OBJECT);
 313
 314         (void) CtdlDoDirectoryServiceFunc(NULL, NULL, &objectlist, "ldap", DIRECTORY_FREE_OBJECT);
 315         lprintf(CTDL_DEBUG, "LDAP write operation complete.\n");
 316 }
 317
 318
 319
 320 /*
 321  * Callback for vcard_add_to_directory()
 322  * (Lotsa ugly nested callbacks.  Oh well.)
 323  */
 324 void vcard_directory_add_user(char *internet_addr, char *citadel_addr) {
 325         char buf[SIZ];
 326
 327         /* We have to validate that we're not stepping on someone else's
 328          * email address ... but only if we're logged in.  Otherwise it's
 329          * probably just the networker or something.
 330          */
 331         if (CC->logged_in) {
 332                 lprintf(CTDL_DEBUG, "Checking for <%s>...\n", internet_addr);
 333                 if (CtdlDirectoryLookup(buf, internet_addr, sizeof buf) == 0) {
 334                         if (strcasecmp(buf, citadel_addr)) {
 335                                 /* This address belongs to someone else.
 336                                  * Bail out silently without saving.
 337                                  */
 338                                 lprintf(CTDL_DEBUG, "DOOP!\n");
 339                                 return;
 340                         }
 341                 }
 342         }
 343         lprintf(CTDL_INFO, "Adding %s (%s) to directory\n",
 344                         citadel_addr, internet_addr);
 345         CtdlDirectoryAddUser(internet_addr, citadel_addr);
 346 }
 347
 348
 349 /*
 350  * Back end function for cmd_igab()
 351  */
 352 void vcard_add_to_directory(long msgnum, void *data) {
 353         struct CtdlMessage *msg;
 354
 355         msg = CtdlFetchMessage(msgnum, 1);
 356         if (msg != NULL) {
 357                 vcard_extract_internet_addresses(msg, vcard_directory_add_user);
 358         }
 359
 360         ctdl_vcard_to_directory(msg, V2L_WRITE);
 361
 362         CtdlFreeMessage(msg);
 363 }
 364
 365
 366 /*
 367  * Initialize Global Adress Book
 368  */
 369 void cmd_igab(char *argbuf) {
 370         char hold_rm[ROOMNAMELEN];
 371
 372         if (CtdlAccessCheck(ac_aide)) return;
 373
 374         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 375
 376         if (getroom(&CC->room, ADDRESS_BOOK_ROOM) != 0) {
 377                 getroom(&CC->room, hold_rm);
 378                 cprintf("%d cannot get address book room\n", ERROR + ROOM_NOT_FOUND);
 379                 return;
 380         }
 381
 382         /* Empty the existing database first.
 383          */
 384         CtdlDirectoryInit();
 385
 386         /* We want *all* vCards in this room */
 387         CtdlForEachMessage(MSGS_ALL, 0, NULL, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$",
 388                 NULL, vcard_add_to_directory, NULL);
 389
 390         getroom(&CC->room, hold_rm);    /* return to saved room */
 391         cprintf("%d Directory has been rebuilt.\n", CIT_OK);
 392 }
 393
 394
 395
 396
 397 /*
 398  * See if there is a valid Internet address in a vCard to use for outbound
 399  * Internet messages.  If there is, stick it in the buffer.
 400  */
 401 void extract_inet_email_addrs(char *emailaddrbuf, size_t emailaddrbuf_len,
 402                                 char *secemailaddrbuf, size_t secemailaddrbuf_len,
 403                                 struct vCard *v, int local_addrs_only) {
 404         char *s, *addr;
 405         int instance = 0;
 406         int saved_instance = 0;
 407
 408         /* Go through the vCard searching for *all* instances of
 409          * the "email;internet" key
 410          */
 411         while (s = vcard_get_prop(v, "email;internet", 0, instance++, 0),  s != NULL) {
 412                 addr = strdup(s);
 413                 striplt(addr);
 414                 if (!IsEmptyStr(addr)) {
 415                         if ( (IsDirectory(addr, 1)) ||
 416                              (!local_addrs_only) ) {
 417                                 ++saved_instance;
 418                                 if ((saved_instance == 1) && (emailaddrbuf != NULL)) {
 419                                         safestrncpy(emailaddrbuf, addr, emailaddrbuf_len);
 420                                 }
 421                                 else if ((saved_instance == 2) && (secemailaddrbuf != NULL)) {
 422                                         safestrncpy(secemailaddrbuf, addr, secemailaddrbuf_len);
 423                                 }
 424                                 else if ((saved_instance > 2) && (secemailaddrbuf != NULL)) {
 425                                         if ( (strlen(addr) + strlen(secemailaddrbuf) + 2)
 426                                            < secemailaddrbuf_len ) {
 427                                                 strcat(secemailaddrbuf, "|");
 428                                                 strcat(secemailaddrbuf, addr);
 429                                         }
 430                                 }
 431                         }
 432                 }
 433                 free(addr);
 434         }
 435 }
 436
 437
 438
 439 /*
 440  * See if there is a name / screen name / friendly name  in a vCard to use for outbound
 441  * Internet messages.  If there is, stick it in the buffer.
 442  */
 443 void extract_friendly_name(char *namebuf, size_t namebuf_len, struct vCard *v)
 444 {
 445         char *s;
 446
 447         s = vcard_get_prop(v, "fn", 0, 0, 0);
 448         if (s == NULL) {
 449                 s = vcard_get_prop(v, "n", 0, 0, 0);
 450         }
 451
 452         if (s != NULL) {
 453                 safestrncpy(namebuf, s, namebuf_len);
 454         }
 455 }
 456
 457
 458 /*
 459  * Callback function for vcard_upload_beforesave() hunts for the real vcard in the MIME structure
 460  */
 461 void vcard_extract_vcard(char *name, char *filename, char *partnum, char *disp,
 462                    void *content, char *cbtype, char *cbcharset, size_t length,
 463                    char *encoding, void *cbuserdata)
 464 {
 465         struct vCard **v = (struct vCard **) cbuserdata;
 466
 467         if (  (!strcasecmp(cbtype, "text/x-vcard"))
 468            || (!strcasecmp(cbtype, "text/vcard")) ) {
 469
 470                 lprintf(CTDL_DEBUG, "Part %s contains a vCard!  Loading...\n", partnum);
 471                 if (*v != NULL) {
 472                         vcard_free(*v);
 473                 }
 474                 *v = vcard_load(content);
 475         }
 476 }
 477
 478
 479 /*
 480  * This handler detects whether the user is attempting to save a new
 481  * vCard as part of his/her personal configuration, and handles the replace
 482  * function accordingly (delete the user's existing vCard in the config room
 483  * and in the global address book).
 484  */
 485 int vcard_upload_beforesave(struct CtdlMessage *msg) {
 486         char *ptr;
 487         char *s;
 488         char buf[SIZ];
 489         struct ctdluser usbuf;
 490         long what_user;
 491         struct vCard *v = NULL;
 492         char *ser = NULL;
 493         int i = 0;
 494         int yes_my_citadel_config = 0;
 495         int yes_any_vcard_room = 0;
 496
 497         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 498
 499         /* Is this some user's "My Citadel Config" room? */
 500         if ( (CC->room.QRflags && QR_MAILBOX)
 501            && (!strcasecmp(&CC->room.QRname[11], USERCONFIGROOM)) ) {
 502                 /* Yes, we want to do this */
 503                 yes_my_citadel_config = 1;
 504
 505 #ifdef VCARD_SAVES_BY_AIDES_ONLY
 506                 /* Prevent non-aides from performing registration changes */
 507                 if (CC->user.axlevel < 6) {
 508                         return(1);
 509                 }
 510 #endif
 511
 512         }
 513
 514         /* Is this a room with an address book in it? */
 515         if (CC->room.QRdefaultview == VIEW_ADDRESSBOOK) {
 516                 yes_any_vcard_room = 1;
 517         }
 518
 519         /* If neither condition exists, don't run this hook. */
 520         if ( (!yes_my_citadel_config) && (!yes_any_vcard_room) ) {
 521                 return(0);
 522         }
 523
 524         /* If this isn't a MIME message, don't bother. */
 525         if (msg->cm_format_type != 4) return(0);
 526
 527         /* Ok, if we got this far, look into the situation further... */
 528
 529         ptr = msg->cm_fields['M'];
 530         if (ptr == NULL) return(0);
 531
 532         mime_parser(msg->cm_fields['M'],
 533                 NULL,
 534                 *vcard_extract_vcard,
 535                 NULL, NULL,
 536                 &v,             /* user data ptr - put the vcard here */
 537                 0
 538         );
 539
 540         if (v == NULL) return(0);       /* no vCards were found in this message */
 541
 542         /* If users cannot create their own accounts, they cannot re-register either. */
 543         if ( (yes_my_citadel_config) && (config.c_disable_newu) && (CC->user.axlevel < 6) ) {
 544                 return(1);
 545         }
 546
 547         s = vcard_get_prop(v, "FN", 0, 0, 0);
 548         if (s) lprintf(CTDL_DEBUG, "vCard beforesave hook running for <%s>\n", s);
 549
 550         if (yes_my_citadel_config) {
 551                 /* Bingo!  The user is uploading a new vCard, so
 552                  * delete the old one.  First, figure out which user
 553                  * is being re-registered...
 554                  */
 555                 what_user = atol(CC->room.QRname);
 556
 557                 if (what_user == CC->user.usernum) {
 558                         /* It's the logged in user.  That was easy. */
 559                         memcpy(&usbuf, &CC->user, sizeof(struct ctdluser));
 560                 }
 561
 562                 else if (getuserbynumber(&usbuf, what_user) == 0) {
 563                         /* We fetched a valid user record */
 564                 }
 565
 566                 else {
 567                         /* somebody set up us the bomb! */
 568                         yes_my_citadel_config = 0;
 569                 }
 570         }
 571
 572         if (yes_my_citadel_config) {
 573                 /* Delete the user's old vCard.  This would probably
 574                  * get taken care of by the replication check, but we
 575                  * want to make sure there is absolutely only one
 576                  * vCard in the user's config room at all times.
 577                  *
 578                  */
 579                 CtdlDeleteMessages(CC->room.QRname, NULL, 0, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$");
 580
 581                 /* Make the author of the message the name of the user. */
 582                 if (msg->cm_fields['A'] != NULL) {
 583                         free(msg->cm_fields['A']);
 584                 }
 585                 msg->cm_fields['A'] = strdup(usbuf.fullname);
 586         }
 587
 588         /* Insert or replace RFC2739-compliant free/busy URL */
 589         if (yes_my_citadel_config) {
 590                 sprintf(buf, "http://%s/%s.vfb",
 591                         config.c_fqdn,
 592                         usbuf.fullname);
 593                 for (i=0; buf[i]; ++i) {
 594                         if (buf[i] == ' ') buf[i] = '_';
 595                 }
 596                 vcard_set_prop(v, "FBURL;PREF", buf, 0);
 597         }
 598
 599         /* If the vCard has no UID, then give it one. */
 600         s = vcard_get_prop(v, "UID", 0, 0, 0);
 601         if (s == NULL) {
 602                 generate_uuid(buf);
 603                 vcard_set_prop(v, "UID", buf, 0);
 604         }
 605
 606         /* Enforce local UID policy if applicable */
 607         if (yes_my_citadel_config) {
 608                 snprintf(buf, sizeof buf, VCARD_EXT_FORMAT, msg->cm_fields['A'], NODENAME);
 609                 vcard_set_prop(v, "UID", buf, 0);
 610         }
 611
 612         /*
 613          * Set the EUID of the message to the UID of the vCard.
 614          */
 615         if (msg->cm_fields['E'] != NULL) free(msg->cm_fields['E']);
 616         s = vcard_get_prop(v, "UID", 0, 0, 0);
 617         if (s != NULL) {
 618                 msg->cm_fields['E'] = strdup(s);
 619                 if (msg->cm_fields['U'] == NULL) {
 620                         msg->cm_fields['U'] = strdup(s);
 621                 }
 622         }
 623
 624         /*
 625          * Set the Subject to the name in the vCard.
 626          */
 627         s = vcard_get_prop(v, "FN", 0, 0, 0);
 628         if (s == NULL) {
 629                 s = vcard_get_prop(v, "N", 0, 0, 0);
 630         }
 631         if (s != NULL) {
 632                 if (msg->cm_fields['U'] != NULL) {
 633                         free(msg->cm_fields['U']);
 634                 }
 635                 msg->cm_fields['U'] = strdup(s);
 636         }
 637
 638         /* Re-serialize it back into the msg body */
 639         ser = vcard_serialize(v);
 640         if (ser != NULL) {
 641                 msg->cm_fields['M'] = realloc(msg->cm_fields['M'], strlen(ser) + 1024);
 642                 sprintf(msg->cm_fields['M'],
 643                         "Content-type: " VCARD_MIME_TYPE
 644                         "\r\n\r\n%s\r\n", ser);
 645                 free(ser);
 646         }
 647
 648         /* Now allow the save to complete. */
 649         vcard_free(v);
 650         return(0);
 651 }
 652
 653
 654
 655 /*
 656  * This handler detects whether the user is attempting to save a new
 657  * vCard as part of his/her personal configuration, and handles the replace
 658  * function accordingly (copy the vCard from the config room to the global
 659  * address book).
 660  */
 661 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 662         char *ptr;
 663         int linelen;
 664         long I;
 665         struct vCard *v;
 666
 667         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 668
 669         /* If this isn't the configuration room, or if this isn't a MIME
 670          * message, don't bother.
 671          */
 672         if (msg->cm_fields['O'] == NULL) return(0);
 673         if (strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) return(0);
 674         if (msg->cm_format_type != 4) return(0);
 675
 676         ptr = msg->cm_fields['M'];
 677         if (ptr == NULL) return(0);
 678         while (ptr != NULL) {
 679
 680                 linelen = strcspn(ptr, "\n");
 681                 if (linelen == 0) return(0);    /* end of headers */
 682
 683                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
 684                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
 685                         /*
 686                          * Bingo!  The user is uploading a new vCard, so
 687                          * copy it to the Global Address Book room.
 688                          */
 689
 690                         I = atol(msg->cm_fields['I']);
 691                         if (I < 0L) return(0);
 692
 693                         /* Store our Internet return address in memory */
 694                         v = vcard_load(msg->cm_fields['M']);
 695                         extract_inet_email_addrs(CC->cs_inet_email, sizeof CC->cs_inet_email,
 696                                                 CC->cs_inet_other_emails, sizeof CC->cs_inet_other_emails,
 697                                                 v, 1);
 698                         extract_friendly_name(CC->cs_inet_fn, sizeof CC->cs_inet_fn, v);
 699                         vcard_free(v);
 700
 701                         /* Put it in the Global Address Book room... */
 702                         CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I, 1, msg);
 703
 704                         /* ...and also in the directory database. */
 705                         vcard_add_to_directory(I, NULL);
 706
 707                         /* Some sites want an Aide to be notified when a
 708                          * user registers or re-registers...
 709                          */
 710                         set_mm_valid();
 711
 712                         /* ...which also means we need to flag the user */
 713                         lgetuser(&CC->user, CC->curr_user);
 714                         CC->user.flags |= (US_REGIS|US_NEEDVALID);
 715                         lputuser(&CC->user);
 716
 717                         return(0);
 718                 }
 719
 720                 ptr = strchr((char *)ptr, '\n');
 721                 if (ptr != NULL) ++ptr;
 722         }
 723
 724         return(0);
 725 }
 726
 727
 728
 729 /*
 730  * back end function used for callbacks
 731  */
 732 void vcard_gu_backend(long supplied_msgnum, void *userdata) {
 733         long *msgnum;
 734
 735         msgnum = (long *) userdata;
 736         *msgnum = supplied_msgnum;
 737 }
 738
 739
 740 /*
 741  * If this user has a vcard on disk, read it into memory, otherwise allocate
 742  * and return an empty vCard.
 743  */
 744 struct vCard *vcard_get_user(struct ctdluser *u) {
 745         char hold_rm[ROOMNAMELEN];
 746         char config_rm[ROOMNAMELEN];
 747         struct CtdlMessage *msg = NULL;
 748         struct vCard *v;
 749         long VCmsgnum;
 750
 751         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 752         MailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
 753
 754         if (getroom(&CC->room, config_rm) != 0) {
 755                 getroom(&CC->room, hold_rm);
 756                 return vcard_new();
 757         }
 758
 759         /* We want the last (and probably only) vcard in this room */
 760         VCmsgnum = (-1);
 761         CtdlForEachMessage(MSGS_LAST, 1, NULL, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$",
 762                 NULL, vcard_gu_backend, (void *)&VCmsgnum );
 763         getroom(&CC->room, hold_rm);    /* return to saved room */
 764
 765         if (VCmsgnum < 0L) return vcard_new();
 766
 767         msg = CtdlFetchMessage(VCmsgnum, 1);
 768         if (msg == NULL) return vcard_new();
 769
 770         v = vcard_load(msg->cm_fields['M']);
 771         CtdlFreeMessage(msg);
 772         return v;
 773 }
 774
 775
 776 /*
 777  * Store this user's vCard in the appropriate place
 778  */
 779 /*
 780  * Write our config to disk
 781  */
 782 void vcard_write_user(struct ctdluser *u, struct vCard *v) {
 783         char temp[PATH_MAX];
 784         FILE *fp;
 785         char *ser;
 786
 787         CtdlMakeTempFileName(temp, sizeof temp);
 788         ser = vcard_serialize(v);
 789
 790         fp = fopen(temp, "w");
 791         if (fp == NULL) return;
 792         if (ser == NULL) {
 793                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 794         } else {
 795                 fwrite(ser, strlen(ser), 1, fp);
 796                 free(ser);
 797         }
 798         fclose(fp);
 799
 800         /* This handy API function does all the work for us.
 801          * NOTE: normally we would want to set that last argument to 1, to
 802          * force the system to delete the user's old vCard.  But it doesn't
 803          * have to, because the vcard_upload_beforesave() hook above
 804          * is going to notice what we're trying to do, and delete the old vCard.
 805          */
 806         CtdlWriteObject(USERCONFIGROOM, /* which room */
 807                         VCARD_MIME_TYPE,/* MIME type */
 808                         temp,           /* temp file */
 809                         u,              /* which user */
 810                         0,              /* not binary */
 811                         0,              /* don't delete others of this type */
 812                         0);             /* no flags */
 813
 814         unlink(temp);
 815 }
 816
 817
 818
 819 /*
 820  * Old style "enter registration info" command.  This function simply honors
 821  * the REGI protocol command, translates the entered parameters into a vCard,
 822  * and enters the vCard into the user's configuration.
 823  */
 824 void cmd_regi(char *argbuf) {
 825         int a,b,c;
 826         char buf[SIZ];
 827         struct vCard *my_vcard;
 828
 829         char tmpaddr[SIZ];
 830         char tmpcity[SIZ];
 831         char tmpstate[SIZ];
 832         char tmpzip[SIZ];
 833         char tmpaddress[SIZ];
 834         char tmpcountry[SIZ];
 835
 836         unbuffer_output();
 837
 838         if (!(CC->logged_in)) {
 839                 cprintf("%d Not logged in.\n",ERROR + NOT_LOGGED_IN);
 840                 return;
 841         }
 842
 843         /* If users cannot create their own accounts, they cannot re-register either. */
 844         if ( (config.c_disable_newu) && (CC->user.axlevel < 6) ) {
 845                 cprintf("%d Self-service registration is not allowed here.\n",
 846                         ERROR + HIGHER_ACCESS_REQUIRED);
 847         }
 848
 849         my_vcard = vcard_get_user(&CC->user);
 850         strcpy(tmpaddr, "");
 851         strcpy(tmpcity, "");
 852         strcpy(tmpstate, "");
 853         strcpy(tmpzip, "");
 854         strcpy(tmpcountry, "USA");
 855
 856         cprintf("%d Send registration...\n", SEND_LISTING);
 857         a=0;
 858         while (client_getln(buf, sizeof buf), strcmp(buf,"000")) {
 859                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
 860                 if (a==1) strcpy(tmpaddr, buf);
 861                 if (a==2) strcpy(tmpcity, buf);
 862                 if (a==3) strcpy(tmpstate, buf);
 863                 if (a==4) {
 864                         for (c=0; buf[c]; ++c) {
 865                                 if ((buf[c]>='0') && (buf[c]<='9')) {
 866                                         b = strlen(tmpzip);
 867                                         tmpzip[b] = buf[c];
 868                                         tmpzip[b+1] = 0;
 869                                 }
 870                         }
 871                 }
 872                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf, 0);
 873                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
 874                 if (a==7) strcpy(tmpcountry, buf);
 875                 ++a;
 876         }
 877
 878         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
 879                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
 880         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
 881         vcard_write_user(&CC->user, my_vcard);
 882         vcard_free(my_vcard);
 883 }
 884
 885
 886 /*
 887  * Protocol command to fetch registration info for a user
 888  */
 889 void cmd_greg(char *argbuf)
 890 {
 891         struct ctdluser usbuf;
 892         struct vCard *v;
 893         char *s;
 894         char who[USERNAME_SIZE];
 895         char adr[256];
 896         char buf[256];
 897
 898         extract_token(who, argbuf, 0, '|', sizeof who);
 899
 900         if (!(CC->logged_in)) {
 901                 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
 902                 return;
 903         }
 904
 905         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 906
 907         if ((CC->user.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 908                 cprintf("%d Higher access required.\n",
 909                         ERROR + HIGHER_ACCESS_REQUIRED);
 910                 return;
 911         }
 912
 913         if (getuser(&usbuf, who) != 0) {
 914                 cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, who);
 915                 return;
 916         }
 917
 918         v = vcard_get_user(&usbuf);
 919
 920         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 921         cprintf("%ld\n", usbuf.usernum);
 922         cprintf("%s\n", usbuf.password);
 923         s = vcard_get_prop(v, "n", 0, 0, 0);
 924         cprintf("%s\n", s ? s : " ");   /* name */
 925
 926         s = vcard_get_prop(v, "adr", 0, 0, 0);
 927         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 928
 929         extract_token(buf, adr, 2, ';', sizeof buf);
 930         cprintf("%s\n", buf);                           /* street */
 931         extract_token(buf, adr, 3, ';', sizeof buf);
 932         cprintf("%s\n", buf);                           /* city */
 933         extract_token(buf, adr, 4, ';', sizeof buf);
 934         cprintf("%s\n", buf);                           /* state */
 935         extract_token(buf, adr, 5, ';', sizeof buf);
 936         cprintf("%s\n", buf);                           /* zip */
 937
 938         s = vcard_get_prop(v, "tel;home", 0, 0, 0);
 939         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
 940         if (s != NULL) {
 941                 cprintf("%s\n", s);
 942         }
 943         else {
 944                 cprintf(" \n");
 945         }
 946
 947         cprintf("%d\n", usbuf.axlevel);
 948
 949         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
 950         cprintf("%s\n", s ? s : " ");
 951         s = vcard_get_prop(v, "adr", 0, 0, 0);
 952         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 953
 954         extract_token(buf, adr, 6, ';', sizeof buf);
 955         cprintf("%s\n", buf);                           /* country */
 956         cprintf("000\n");
 957         vcard_free(v);
 958 }
 959
 960
 961
 962 /*
 963  * When a user is being created, create his/her vCard.
 964  */
 965 void vcard_newuser(struct ctdluser *usbuf) {
 966         char vname[256];
 967         char buf[256];
 968         int i;
 969         struct vCard *v;
 970
 971         vcard_fn_to_n(vname, usbuf->fullname, sizeof vname);
 972         lprintf(CTDL_DEBUG, "Converted <%s> to <%s>\n", usbuf->fullname, vname);
 973
 974         /* Create and save the vCard */
 975         v = vcard_new();
 976         if (v == NULL) return;
 977         sprintf(buf, "%s@%s", usbuf->fullname, config.c_fqdn);
 978         for (i=0; buf[i]; ++i) {
 979                 if (buf[i] == ' ') buf[i] = '_';
 980         }
 981         vcard_add_prop(v, "fn", usbuf->fullname);
 982         vcard_add_prop(v, "n", vname);
 983         vcard_add_prop(v, "adr", "adr:;;_;_;_;00000;__");
 984         vcard_add_prop(v, "email;internet", buf);
 985         vcard_write_user(usbuf, v);
 986         vcard_free(v);
 987 }
 988
 989
 990 /*
 991  * When a user is being deleted, we have to remove his/her vCard.
 992  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
 993  * field, and the same Exclusive ID as the existing card.
 994  */
 995 void vcard_purge(struct ctdluser *usbuf) {
 996         struct CtdlMessage *msg;
 997         char buf[SIZ];
 998
 999         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1000         if (msg == NULL) return;
1001         memset(msg, 0, sizeof(struct CtdlMessage));
1002
1003         msg->cm_magic = CTDLMESSAGE_MAGIC;
1004         msg->cm_anon_type = MES_NORMAL;
1005         msg->cm_format_type = 0;
1006         msg->cm_fields['A'] = strdup(usbuf->fullname);
1007         msg->cm_fields['O'] = strdup(ADDRESS_BOOK_ROOM);
1008         msg->cm_fields['N'] = strdup(NODENAME);
1009         msg->cm_fields['M'] = strdup("Purge this vCard\n");
1010
1011         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
1012                         msg->cm_fields['A'], NODENAME);
1013         msg->cm_fields['E'] = strdup(buf);
1014
1015         msg->cm_fields['S'] = strdup("CANCEL");
1016
1017         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM);
1018         CtdlFreeMessage(msg);
1019 }
1020
1021
1022 /*
1023  * Grab vCard directory stuff out of incoming network messages
1024  */
1025 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
1026         char *ptr;
1027         int linelen;
1028
1029         if (msg == NULL) return(0);
1030
1031         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
1032                 return(0);
1033         }
1034
1035         if (msg->cm_format_type != 4) return(0);
1036
1037         ptr = msg->cm_fields['M'];
1038         if (ptr == NULL) return(0);
1039         while (ptr != NULL) {
1040
1041                 linelen = strcspn(ptr, "\n");
1042                 if (linelen == 0) return(0);    /* end of headers */
1043
1044                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
1045                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
1046                         /* It's a vCard.  Add it to the directory. */
1047                         vcard_extract_internet_addresses(msg, CtdlDirectoryAddUser);
1048                         return(0);
1049                 }
1050
1051                 ptr = strchr((char *)ptr, '\n');
1052                 if (ptr != NULL) ++ptr;
1053         }
1054
1055         return(0);
1056 }
1057
1058
1059
1060 /*
1061  * When a vCard is being removed from the Global Address Book room, remove it
1062  * from the directory as well.
1063  */
1064 void vcard_delete_remove(char *room, long msgnum) {
1065         struct CtdlMessage *msg;
1066         char *ptr;
1067         int linelen;
1068
1069         if (msgnum <= 0L) return;
1070
1071         if (room == NULL) return;
1072
1073         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
1074                 return;
1075         }
1076
1077         msg = CtdlFetchMessage(msgnum, 1);
1078         if (msg == NULL) return;
1079
1080         ptr = msg->cm_fields['M'];
1081         if (ptr == NULL) goto EOH;
1082         while (ptr != NULL) {
1083                 linelen = strcspn(ptr, "\n");
1084                 if (linelen == 0) goto EOH;
1085
1086                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
1087                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
1088                         /* Bingo!  A vCard is being deleted. */
1089                         vcard_extract_internet_addresses(msg, CtdlDirectoryDelUser);
1090                         ctdl_vcard_to_directory(msg, V2L_DELETE);
1091                 }
1092                 ptr = strchr((char *)ptr, '\n');
1093                 if (ptr != NULL) ++ptr;
1094         }
1095
1096 EOH:    CtdlFreeMessage(msg);
1097 }
1098
1099
1100
1101 /*
1102  * Get Valid Screen Names
1103  */
1104 void cmd_gvsn(char *argbuf)
1105 {
1106         if (CtdlAccessCheck(ac_logged_in)) return;
1107
1108         cprintf("%d valid screen names:\n", LISTING_FOLLOWS);
1109         cprintf("%s\n", CC->user.fullname);
1110         if ( (!IsEmptyStr(CC->cs_inet_fn)) && (strcasecmp(CC->user.fullname, CC->cs_inet_fn)) ) {
1111                 cprintf("%s\n", CC->cs_inet_fn);
1112         }
1113         cprintf("000\n");
1114 }
1115
1116
1117 /*
1118  * Get Valid Email Addresses
1119  */
1120 void cmd_gvea(char *argbuf)
1121 {
1122         int num_secondary_emails = 0;
1123         int i;
1124         char buf[256];
1125
1126         if (CtdlAccessCheck(ac_logged_in)) return;
1127
1128         cprintf("%d valid email addresses:\n", LISTING_FOLLOWS);
1129         if (!IsEmptyStr(CC->cs_inet_email)) {
1130                 cprintf("%s\n", CC->cs_inet_email);
1131         }
1132         if (!IsEmptyStr(CC->cs_inet_other_emails)) {
1133                 num_secondary_emails = num_tokens(CC->cs_inet_other_emails, '|');
1134                 for (i=0; i<num_secondary_emails; ++i) {
1135                         extract_token(buf, CC->cs_inet_other_emails,i,'|',sizeof CC->cs_inet_other_emails);
1136                         cprintf("%s\n", buf);
1137                 }
1138         }
1139         cprintf("000\n");
1140 }
1141
1142
1143
1144
1145 /*
1146  * Callback function for cmd_dvca() that hunts for vCard content types
1147  * and outputs any email addresses found within.
1148  */
1149 void dvca_mime_callback(char *name, char *filename, char *partnum, char *disp,
1150                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1151                 void *cbuserdata) {
1152
1153         struct vCard *v;
1154         char displayname[256];
1155         int displayname_len;
1156         char emailaddr[256];
1157         int i;
1158         int has_commas = 0;
1159
1160         if ( (strcasecmp(cbtype, "text/vcard")) && (strcasecmp(cbtype, "text/x-vcard")) ) {
1161                 return;
1162         }
1163
1164         v = vcard_load(content);
1165         if (v == NULL) return;
1166
1167         extract_friendly_name(displayname, sizeof displayname, v);
1168         extract_inet_email_addrs(emailaddr, sizeof emailaddr, NULL, 0, v, 0);
1169
1170         displayname_len = strlen(displayname);
1171         for (i=0; i<displayname_len; ++i) {
1172                 if (displayname[i] == '\"') displayname[i] = ' ';
1173                 if (displayname[i] == ';') displayname[i] = ',';
1174                 if (displayname[i] == ',') has_commas = 1;
1175         }
1176         striplt(displayname);
1177
1178         cprintf("%s%s%s <%s>\n",
1179                 (has_commas ? "\"" : ""),
1180                 displayname,
1181                 (has_commas ? "\"" : ""),
1182                 emailaddr
1183         );
1184
1185         vcard_free(v);
1186 }
1187
1188
1189 /*
1190  * Back end callback function for cmd_dvca()
1191  *
1192  * It's basically just passed a list of message numbers, which we're going
1193  * to fetch off the disk and then pass along to the MIME parser via another
1194  * layer of callback...
1195  */
1196 void dvca_callback(long msgnum, void *userdata) {
1197         struct CtdlMessage *msg = NULL;
1198
1199         msg = CtdlFetchMessage(msgnum, 1);
1200         if (msg == NULL) return;
1201         mime_parser(msg->cm_fields['M'],
1202                 NULL,
1203                 *dvca_mime_callback,    /* callback function */
1204                 NULL, NULL,
1205                 NULL,                   /* user data */
1206                 0
1207         );
1208         CtdlFreeMessage(msg);
1209 }
1210
1211
1212 /*
1213  * Dump VCard Addresses
1214  */
1215 void cmd_dvca(char *argbuf)
1216 {
1217         if (CtdlAccessCheck(ac_logged_in)) return;
1218
1219         cprintf("%d addresses:\n", LISTING_FOLLOWS);
1220         CtdlForEachMessage(MSGS_ALL, 0, NULL, NULL, NULL, dvca_callback, NULL);
1221         cprintf("000\n");
1222 }
1223
1224
1225 /*
1226  * Query Directory
1227  */
1228 void cmd_qdir(char *argbuf) {
1229         char citadel_addr[256];
1230         char internet_addr[256];
1231
1232         if (CtdlAccessCheck(ac_logged_in)) return;
1233
1234         extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1235
1236         if (CtdlDirectoryLookup(citadel_addr, internet_addr, sizeof citadel_addr) != 0) {
1237                 cprintf("%d %s was not found.\n",
1238                         ERROR + NO_SUCH_USER, internet_addr);
1239                 return;
1240         }
1241
1242         cprintf("%d %s\n", CIT_OK, citadel_addr);
1243 }
1244
1245 /*
1246  * Query Directory, in fact an alias to match postfix tcp auth.
1247  */
1248 void check_get(void) {
1249         char internet_addr[256];
1250
1251         char cmdbuf[SIZ];
1252
1253         time(&CC->lastcmd);
1254         memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
1255         if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
1256                 lprintf(CTDL_CRIT, "Client disconnected: ending session.\n");
1257                 CC->kill_me = 1;
1258                 return;
1259         }
1260         lprintf(CTDL_INFO, ": %s\n", cmdbuf);
1261         while (strlen(cmdbuf) < 3) strcat(cmdbuf, " ");
1262
1263         if (strcasecmp(cmdbuf, "GET "));
1264         {
1265                 struct recptypes *rcpt;
1266                 char *argbuf = &cmdbuf[4];
1267
1268                 extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1269                 rcpt = validate_recipients(internet_addr);
1270                 if ((rcpt != NULL)&&
1271                         (
1272                          (*rcpt->recp_local != '\0')||
1273                          (*rcpt->recp_room != '\0')||
1274                          (*rcpt->recp_ignet != '\0')))
1275                 {
1276
1277                         cprintf("200 OK %s\n", internet_addr);
1278                         lprintf(CTDL_INFO, "sending 200 OK for the room %s\n", rcpt->display_recp);
1279                 }
1280                 else
1281                 {
1282                         cprintf("500 REJECT noone here by that name.\n");
1283
1284                         lprintf(CTDL_INFO, "sending 500 REJECT noone here by that name: %s\n", internet_addr);
1285                 }
1286                 if (rcpt != NULL) free_recipients(rcpt);
1287         }
1288 }
1289
1290 void check_get_greeting(void) {
1291 /* dummy function, we have no greeting in this verry simple protocol. */
1292 }
1293
1294
1295 /*
1296  * We don't know if the Contacts room exists so we just create it at login
1297  */
1298 void vcard_create_room(void)
1299 {
1300         struct ctdlroom qr;
1301         struct visit vbuf;
1302
1303         /* Create the calendar room if it doesn't already exist */
1304         create_room(USERCONTACTSROOM, 4, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1305
1306         /* Set expiration policy to manual; otherwise objects will be lost! */
1307         if (lgetroom(&qr, USERCONTACTSROOM)) {
1308                 lprintf(CTDL_ERR, "Couldn't get the user CONTACTS room!\n");
1309                 return;
1310         }
1311         qr.QRep.expire_mode = EXPIRE_MANUAL;
1312         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1313         lputroom(&qr);
1314
1315         /* Set the view to a calendar view */
1316         CtdlGetRelationship(&vbuf, &CC->user, &qr);
1317         vbuf.v_view = 2;        /* 2 = address book view */
1318         CtdlSetRelationship(&vbuf, &CC->user, &qr);
1319
1320         return;
1321 }
1322
1323
1324
1325
1326 /*
1327  * When a user logs in...
1328  */
1329 void vcard_session_login_hook(void) {
1330         struct vCard *v = NULL;
1331
1332         v = vcard_get_user(&CC->user);
1333         extract_inet_email_addrs(CC->cs_inet_email, sizeof CC->cs_inet_email,
1334                                 CC->cs_inet_other_emails, sizeof CC->cs_inet_other_emails,
1335                                 v, 1);
1336         extract_friendly_name(CC->cs_inet_fn, sizeof CC->cs_inet_fn, v);
1337         vcard_free(v);
1338
1339         vcard_create_room();
1340 }
1341
1342
1343 /*
1344  * Turn an arbitrary RFC822 address into a struct vCard for possible
1345  * inclusion into an address book.
1346  */
1347 struct vCard *vcard_new_from_rfc822_addr(char *addr) {
1348         struct vCard *v;
1349         char user[256], node[256], name[256], email[256], n[256], uid[256];
1350         int i;
1351
1352         v = vcard_new();
1353         if (v == NULL) return(NULL);
1354
1355         process_rfc822_addr(addr, user, node, name);
1356         vcard_set_prop(v, "fn", name, 0);
1357
1358         vcard_fn_to_n(n, name, sizeof n);
1359         vcard_set_prop(v, "n", n, 0);
1360
1361         snprintf(email, sizeof email, "%s@%s", user, node);
1362         vcard_set_prop(v, "email;internet", email, 0);
1363
1364         snprintf(uid, sizeof uid, "collected: %s %s@%s", name, user, node);
1365         for (i=0; uid[i]; ++i) {
1366                 if (isspace(uid[i])) uid[i] = '_';
1367                 uid[i] = tolower(uid[i]);
1368         }
1369         vcard_set_prop(v, "UID", uid, 0);
1370
1371         return(v);
1372 }
1373
1374
1375
1376 /*
1377  * This is called by store_harvested_addresses() to remove from the
1378  * list any addresses we already have in our address book.
1379  */
1380 void strip_addresses_already_have(long msgnum, void *userdata) {
1381         char *collected_addresses;
1382         struct CtdlMessage *msg = NULL;
1383         struct vCard *v;
1384         char *value = NULL;
1385         int i, j;
1386         char addr[256], user[256], node[256], name[256];
1387
1388         collected_addresses = (char *)userdata;
1389
1390         msg = CtdlFetchMessage(msgnum, 1);
1391         if (msg == NULL) return;
1392         v = vcard_load(msg->cm_fields['M']);
1393         CtdlFreeMessage(msg);
1394
1395         i = 0;
1396         while (value = vcard_get_prop(v, "email", 1, i++, 0), value != NULL) {
1397
1398                 for (j=0; j<num_tokens(collected_addresses, ','); ++j) {
1399                         extract_token(addr, collected_addresses, j, ',', sizeof addr);
1400
1401                         /* Remove the address if we already have it! */
1402                         process_rfc822_addr(addr, user, node, name);
1403                         snprintf(addr, sizeof addr, "%s@%s", user, node);
1404                         if (!strcasecmp(value, addr)) {
1405                                 remove_token(collected_addresses, j, ',');
1406                         }
1407                 }
1408
1409         }
1410
1411         vcard_free(v);
1412 }
1413
1414
1415
1416 /*
1417  * Back end function for store_harvested_addresses()
1418  */
1419 void store_this_ha(struct addresses_to_be_filed *aptr) {
1420         struct CtdlMessage *vmsg = NULL;
1421         long vmsgnum = (-1L);
1422         char *ser = NULL;
1423         struct vCard *v = NULL;
1424         char recipient[256];
1425         int i;
1426
1427         /* First remove any addresses we already have in the address book */
1428         usergoto(aptr->roomname, 0, 0, NULL, NULL);
1429         CtdlForEachMessage(MSGS_ALL, 0, NULL, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$", NULL,
1430                 strip_addresses_already_have, aptr->collected_addresses);
1431
1432         if (!IsEmptyStr(aptr->collected_addresses))
1433            for (i=0; i<num_tokens(aptr->collected_addresses, ','); ++i) {
1434
1435                 /* Make a vCard out of each address */
1436                 extract_token(recipient, aptr->collected_addresses, i, ',', sizeof recipient);
1437                 striplt(recipient);
1438                 v = vcard_new_from_rfc822_addr(recipient);
1439                 if (v != NULL) {
1440                         vmsg = malloc(sizeof(struct CtdlMessage));
1441                         memset(vmsg, 0, sizeof(struct CtdlMessage));
1442                         vmsg->cm_magic = CTDLMESSAGE_MAGIC;
1443                         vmsg->cm_anon_type = MES_NORMAL;
1444                         vmsg->cm_format_type = FMT_RFC822;
1445                         vmsg->cm_fields['A'] = strdup("Citadel");
1446                         vmsg->cm_fields['E'] =  strdup(vcard_get_prop(v, "UID", 0, 0, 0));
1447                         ser = vcard_serialize(v);
1448                         if (ser != NULL) {
1449                                 vmsg->cm_fields['M'] = malloc(strlen(ser) + 1024);
1450                                 sprintf(vmsg->cm_fields['M'],
1451                                         "Content-type: " VCARD_MIME_TYPE
1452                                         "\r\n\r\n%s\r\n", ser);
1453                                 free(ser);
1454                         }
1455                         vcard_free(v);
1456
1457                         lprintf(CTDL_DEBUG, "Adding contact: %s\n", recipient);
1458                         vmsgnum = CtdlSubmitMsg(vmsg, NULL, aptr->roomname);
1459                         CtdlFreeMessage(vmsg);
1460                 }
1461         }
1462
1463         free(aptr->roomname);
1464         free(aptr->collected_addresses);
1465         free(aptr);
1466 }
1467
1468
1469 /*
1470  * When a user sends a message, we may harvest one or more email addresses
1471  * from the recipient list to be added to the user's address book.  But we
1472  * want to do this asynchronously so it doesn't keep the user waiting.
1473  */
1474 void store_harvested_addresses(void) {
1475
1476         struct addresses_to_be_filed *aptr = NULL;
1477
1478         if (atbf == NULL) return;
1479
1480         begin_critical_section(S_ATBF);
1481         while (atbf != NULL) {
1482                 aptr = atbf;
1483                 atbf = atbf->next;
1484                 end_critical_section(S_ATBF);
1485                 store_this_ha(aptr);
1486                 begin_critical_section(S_ATBF);
1487         }
1488         end_critical_section(S_ATBF);
1489 }
1490
1491
1492 /*
1493  * Function to output vCard data as plain text.  Nobody uses MSG0 anymore, so
1494  * really this is just so we expose the vCard data to the full text indexer.
1495  */
1496 void vcard_fixed_output(char *ptr, int len) {
1497         char *serialized_vcard;
1498         struct vCard *v;
1499         char *key, *value;
1500         int i = 0;
1501
1502         serialized_vcard = malloc(len + 1);
1503         safestrncpy(serialized_vcard, ptr, len+1);
1504         v = vcard_load(serialized_vcard);
1505         free(serialized_vcard);
1506
1507         i = 0;
1508         while (key = vcard_get_prop(v, "", 0, i, 1), key != NULL) {
1509                 value = vcard_get_prop(v, "", 0, i++, 0);
1510                 cprintf("%s\n", value);
1511         }
1512
1513         vcard_free(v);
1514 }
1515
1516
1517 const char *CitadelServiceDICT_TCP="DICT_TCP";
1518
1519 CTDL_MODULE_INIT(vcard)
1520 {
1521         struct ctdlroom qr;
1522         char filename[256];
1523         FILE *fp;
1524
1525         CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN);
1526         CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
1527         CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
1528         CtdlRegisterDeleteHook(vcard_delete_remove);
1529         CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
1530         CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
1531         CtdlRegisterProtoHook(cmd_igab, "IGAB",
1532                                         "Initialize Global Address Book");
1533         CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
1534         CtdlRegisterProtoHook(cmd_gvsn, "GVSN", "Get Valid Screen Names");
1535         CtdlRegisterProtoHook(cmd_gvea, "GVEA", "Get Valid Email Addresses");
1536         CtdlRegisterProtoHook(cmd_dvca, "DVCA", "Dump VCard Addresses");
1537         CtdlRegisterUserHook(vcard_newuser, EVT_NEWUSER);
1538         CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
1539         CtdlRegisterNetprocHook(vcard_extract_from_network);
1540         CtdlRegisterSessionHook(store_harvested_addresses, EVT_TIMER);
1541         CtdlRegisterFixedOutputHook("text/x-vcard", vcard_fixed_output);
1542         CtdlRegisterFixedOutputHook("text/vcard", vcard_fixed_output);
1543
1544         /* Create the Global ADdress Book room if necessary */
1545         create_room(ADDRESS_BOOK_ROOM, 3, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1546
1547         /* Set expiration policy to manual; otherwise objects will be lost! */
1548         if (!lgetroom(&qr, ADDRESS_BOOK_ROOM)) {
1549                 qr.QRep.expire_mode = EXPIRE_MANUAL;
1550                 qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1551                 lputroom(&qr);
1552
1553                 /*
1554                  * Also make sure it has a netconfig file, so the networker runs
1555                  * on this room even if we don't share it with any other nodes.
1556                  * This allows the CANCEL messages (i.e. "Purge this vCard") to be
1557                  * purged.
1558                  */
1559                 assoc_file_name(filename, sizeof filename, &qr, ctdl_netcfg_dir);
1560                 fp = fopen(filename, "a");
1561                 if (fp != NULL) fclose(fp);
1562                 chown(filename, CTDLUID, (-1));
1563         }
1564
1565         /* for postfix tcpdict */
1566         CtdlRegisterServiceHook(config.c_pftcpdict_port,        /* Postfix */
1567                                 NULL,
1568                                 check_get_greeting,
1569                                 check_get,
1570                                 NULL,
1571                                 CitadelServiceDICT_TCP);
1572
1573         /* return our Subversion id for the Log */
1574         return "$Id$";
1575 }