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 <libcitadel.h>
  51 #include "citadel.h"
  52 #include "server.h"
  53 #include "citserver.h"
  54 #include "support.h"
  55 #include "config.h"
  56 #include "control.h"
  57 #include "room_ops.h"
  58 #include "user_ops.h"
  59 #include "policy.h"
  60 #include "database.h"
  61 #include "msgbase.h"
  62 #include "internet_addressing.h"
  63 #include "serv_vcard.h"
  64
  65 #include "ctdl_module.h"
  66
  67
  68
  69 /*
  70  * set global flag calling for an aide to validate new users
  71  */
  72 void set_mm_valid(void) {
  73         begin_critical_section(S_CONTROL);
  74         get_control();
  75         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
  76         put_control();
  77         end_critical_section(S_CONTROL);
  78 }
  79
  80
  81
  82 /*
  83  * Extract Internet e-mail addresses from a message containing a vCard, and
  84  * perform a callback for any found.
  85  */
  86 void vcard_extract_internet_addresses(struct CtdlMessage *msg,
  87                                 void (*callback)(char *, char *) ) {
  88         struct vCard *v;
  89         char *s;
  90         char *addr;
  91         char citadel_address[SIZ];
  92         int instance = 0;
  93         int found_something = 0;
  94
  95         if (msg->cm_fields['A'] == NULL) return;
  96         if (msg->cm_fields['N'] == NULL) return;
  97         snprintf(citadel_address, sizeof citadel_address, "%s @ %s",
  98                 msg->cm_fields['A'], msg->cm_fields['N']);
  99
 100         v = vcard_load(msg->cm_fields['M']);
 101         if (v == NULL) return;
 102
 103         /* Go through the vCard searching for *all* instances of
 104          * the "email;internet" key
 105          */
 106         do {
 107                 s = vcard_get_prop(v, "email;internet", 0, instance++, 0);
 108                 if (s != NULL) {
 109                         addr = strdup(s);
 110                         striplt(addr);
 111                         if (!IsEmptyStr(addr)) {
 112                                 if (callback != NULL) {
 113                                         callback(addr, citadel_address);
 114                                 }
 115                         }
 116                         free(addr);
 117                         found_something = 1;
 118                 }
 119                 else {
 120                         found_something = 0;
 121                 }
 122         } while(found_something);
 123
 124         vcard_free(v);
 125 }
 126
 127
 128 /*
 129  * vCard-to-LDAP conversions.
 130  *
 131  * If 'op' is set to V2L_WRITE, then write
 132  * (add, or change if already exists) a directory entry to the
 133  * LDAP server, based on the information supplied in a vCard.
 134  *
 135  * If 'op' is set to V2L_DELETE, then delete the entry from LDAP.
 136  */
 137
 138
 139 void ctdl_vcard_to_directory(struct CtdlMessage *msg, int op) {
 140         struct vCard *v = NULL;
 141         int i;
 142         int have_addr = 0;
 143         int have_cn = 0;
 144
 145         void *objectlist = NULL;
 146
 147         char givenname[128];
 148         char sn[128];
 149         char uid[256];
 150         char street[256];
 151         char city[128];
 152         char state[3];
 153         char zipcode[10];
 154         char calFBURL[256];
 155         char ldap_dn[SIZ];
 156
 157         if (msg == NULL) return;
 158         if (msg->cm_fields['M'] == NULL) return;
 159         if (msg->cm_fields['A'] == NULL) return;
 160         if (msg->cm_fields['N'] == NULL) return;
 161
 162         /* Initialize variables */
 163         strcpy(givenname, "");
 164         strcpy(sn, "");
 165         strcpy(calFBURL, "");
 166
 167         sprintf(uid, "%s@%s",
 168                 msg->cm_fields['A'],
 169                 msg->cm_fields['N']
 170         );
 171
 172         sprintf(ldap_dn, "euid=%s,ou=%s", msg->cm_fields['E'], msg->cm_fields['N']);
 173
 174         /* Are we just deleting?  If so, it's simple... */
 175         if (op == V2L_DELETE) {
 176                 (void) CtdlDoDirectoryServiceFunc (ldap_dn, NULL, NULL, "ldap", DIRECTORY_USER_DEL);
 177                 return;
 178         }
 179
 180         /*
 181          * If we get to this point then it must be a V2L_WRITE operation.
 182          */
 183
 184         /* First make sure the OU for the user's home Citadel host is created */
 185         (void) CtdlDoDirectoryServiceFunc (NULL, msg->cm_fields['N'], NULL, "ldap", DIRECTORY_CREATE_HOST);
 186
 187         /* Next create the directory service object */
 188         (void) CtdlDoDirectoryServiceFunc(NULL, NULL, &objectlist, "ldap", DIRECTORY_CREATE_OBJECT);
 189
 190         /* The first LDAP attribute will be an 'objectclass' list.  Citadel
 191          * doesn't do anything with this.  It's just there for compatibility
 192          * with Kolab.
 193          */
 194         (void) CtdlDoDirectoryServiceFunc("objectclass", "citadelInetOrgPerson", &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 195
 196         /* Convert the vCard fields to LDAP properties */
 197         v = vcard_load(msg->cm_fields['M']);
 198         if (v->numprops) for (i=0; i<(v->numprops); ++i) if (striplt(v->prop[i].value), strlen(v->prop[i].value) > 0) {
 199
 200                 if (!strcasecmp(v->prop[i].name, "n")) {
 201                         extract_token(sn,               v->prop[i].value, 0, ';', sizeof sn);
 202                         extract_token(givenname,        v->prop[i].value, 1, ';', sizeof givenname);
 203                 }
 204
 205                 if (!strcasecmp(v->prop[i].name, "fn")) {
 206                         (void) CtdlDoDirectoryServiceFunc("cn", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 207                         have_cn = 1;
 208                 }
 209
 210                 if (!strcasecmp(v->prop[i].name, "title")) {
 211                         (void) CtdlDoDirectoryServiceFunc("title", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 212                 }
 213
 214                 if (!strcasecmp(v->prop[i].name, "org")) {
 215                         (void) CtdlDoDirectoryServiceFunc("o", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 216                 }
 217
 218                 if ( (!strcasecmp(v->prop[i].name, "adr"))
 219                    ||(!strncasecmp(v->prop[i].name, "adr;", 4)) ) {
 220                         /* Unfortunately, we can only do a single address */
 221                         if (!have_addr) {
 222                                 have_addr = 1;
 223                                 strcpy(street, "");
 224                                 extract_token(&street[strlen(street)],
 225                                         v->prop[i].value, 0, ';', (sizeof street - strlen(street))); /* po box */
 226                                 strcat(street, " ");
 227                                 extract_token(&street[strlen(street)],
 228                                         v->prop[i].value, 1, ';', (sizeof street - strlen(street))); /* extend addr */
 229                                 strcat(street, " ");
 230                                 extract_token(&street[strlen(street)],
 231                                         v->prop[i].value, 2, ';', (sizeof street - strlen(street))); /* street */
 232                                 striplt(street);
 233                                 extract_token(city, v->prop[i].value, 3, ';', sizeof city);
 234                                 extract_token(state, v->prop[i].value, 4, ';', sizeof state);
 235                                 extract_token(zipcode, v->prop[i].value, 5, ';', sizeof zipcode);
 236
 237                                 // ldap requires these fields to be something
 238                                 if (IsEmptyStr(street)) strcpy(street, "_");
 239                                 if (IsEmptyStr(zipcode)) strcpy(zipcode, "_");
 240                                 if (IsEmptyStr(city)) strcpy(city, "_");
 241                                 if (IsEmptyStr(state)) strcpy(state, "_");
 242
 243                                 (void) CtdlDoDirectoryServiceFunc("street", street, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 244                                 (void) CtdlDoDirectoryServiceFunc("l", city, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 245                                 (void) CtdlDoDirectoryServiceFunc("st", state, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 246                                 (void) CtdlDoDirectoryServiceFunc("postalcode", zipcode, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 247                         }
 248                 }
 249
 250                 if (!strcasecmp(v->prop[i].name, "tel;home"))
 251                         (void) CtdlDoDirectoryServiceFunc("homePhone", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 252                 else
 253                 if (!strcasecmp(v->prop[i].name, "tel;fax"))
 254                         (void) CtdlDoDirectoryServiceFunc("facsimileTelephoneNumber", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 255                 else
 256                 if (!strcasecmp(v->prop[i].name, "tel;cell"))
 257                         (void) CtdlDoDirectoryServiceFunc("mobile", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 258                 else
 259                 if ( (!strcasecmp(v->prop[i].name, "tel"))
 260                    ||(!strncasecmp(v->prop[i].name, "tel;", 4)) ) {
 261                         (void) CtdlDoDirectoryServiceFunc("telephoneNumber", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 262                 }
 263
 264
 265                 if ( (!strcasecmp(v->prop[i].name, "email"))
 266                    ||(!strcasecmp(v->prop[i].name, "email;internet")) ) {
 267                         (void) CtdlDoDirectoryServiceFunc("mail", v->prop[i].value, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 268                 }
 269
 270                 /* Calendar free/busy URL (take the first one we find, but if a subsequent
 271                  * one contains the "pref" designation then we go with that instead.)
 272                  */
 273                 if ( (!strcasecmp(v->prop[i].name, "fburl"))
 274                    ||(!strncasecmp(v->prop[i].name, "fburl;", 6)) ) {
 275                         if ( (IsEmptyStr(calFBURL))
 276                            || (!strncasecmp(v->prop[i].name, "fburl;pref", 10)) ) {
 277                                 safestrncpy(calFBURL, v->prop[i].value, sizeof calFBURL);
 278                         }
 279                 }
 280
 281         }
 282         vcard_free(v);  /* Don't need this anymore. */
 283
 284         /* "sn" (surname) based on info in vCard */
 285         (void) CtdlDoDirectoryServiceFunc("sn", sn, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 286
 287         /* "givenname" (first name) based on info in vCard */
 288         if (IsEmptyStr(givenname)) strcpy(givenname, "_");
 289         if (IsEmptyStr(sn)) strcpy(sn, "_");
 290         (void) CtdlDoDirectoryServiceFunc("givenname", givenname, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 291
 292         /* "uid" is a Kolab compatibility thing.  We just do cituser@citnode */
 293         (void) CtdlDoDirectoryServiceFunc("uid", uid, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 294
 295         /* Add a "cn" (Common Name) attribute based on the user's screen name,
 296          * but only there was no 'fn' (full name) property in the vCard
 297          */
 298         if (!have_cn)
 299                 (void) CtdlDoDirectoryServiceFunc("cn", msg->cm_fields['A'], &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 300
 301         /* Add a "calFBURL" attribute if a calendar free/busy URL exists */
 302         if (!IsEmptyStr(calFBURL)) {
 303                 (void) CtdlDoDirectoryServiceFunc("calFBURL", calFBURL, &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 304         }
 305
 306         // Add this messages EUID as the primary key for this entry.
 307         (void) CtdlDoDirectoryServiceFunc("euid", msg->cm_fields['E'], &objectlist, "ldap", DIRECTORY_ATTRIB_ADD);
 308
 309
 310         (void) CtdlDoDirectoryServiceFunc(ldap_dn, NULL, &objectlist, "ldap", DIRECTORY_SAVE_OBJECT);
 311
 312         (void) CtdlDoDirectoryServiceFunc(NULL, NULL, &objectlist, "ldap", DIRECTORY_FREE_OBJECT);
 313         CtdlLogPrintf(CTDL_DEBUG, "Directory Services write operation complete.\n");
 314 }
 315
 316
 317
 318 /*
 319  * Callback for vcard_add_to_directory()
 320  * (Lotsa ugly nested callbacks.  Oh well.)
 321  */
 322 void vcard_directory_add_user(char *internet_addr, char *citadel_addr) {
 323         char buf[SIZ];
 324
 325         /* We have to validate that we're not stepping on someone else's
 326          * email address ... but only if we're logged in.  Otherwise it's
 327          * probably just the networker or something.
 328          */
 329         if (CC->logged_in) {
 330                 CtdlLogPrintf(CTDL_DEBUG, "Checking for <%s>...\n", internet_addr);
 331                 if (CtdlDirectoryLookup(buf, internet_addr, sizeof buf) == 0) {
 332                         if (strcasecmp(buf, citadel_addr)) {
 333                                 /* This address belongs to someone else.
 334                                  * Bail out silently without saving.
 335                                  */
 336                                 CtdlLogPrintf(CTDL_DEBUG, "DOOP!\n");
 337                                 return;
 338                         }
 339                 }
 340         }
 341         CtdlLogPrintf(CTDL_INFO, "Adding %s (%s) to directory\n",
 342                         citadel_addr, internet_addr);
 343         CtdlDirectoryAddUser(internet_addr, citadel_addr);
 344 }
 345
 346
 347 /*
 348  * Back end function for cmd_igab()
 349  */
 350 void vcard_add_to_directory(long msgnum, void *data) {
 351         struct CtdlMessage *msg;
 352
 353         msg = CtdlFetchMessage(msgnum, 1);
 354         if (msg != NULL) {
 355                 vcard_extract_internet_addresses(msg, vcard_directory_add_user);
 356         }
 357
 358         ctdl_vcard_to_directory(msg, V2L_WRITE);
 359
 360         CtdlFreeMessage(msg);
 361 }
 362
 363
 364 /*
 365  * Initialize Global Adress Book
 366  */
 367 void cmd_igab(char *argbuf) {
 368         char hold_rm[ROOMNAMELEN];
 369
 370         if (CtdlAccessCheck(ac_aide)) return;
 371
 372         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 373
 374         if (getroom(&CC->room, ADDRESS_BOOK_ROOM) != 0) {
 375                 getroom(&CC->room, hold_rm);
 376                 cprintf("%d cannot get address book room\n", ERROR + ROOM_NOT_FOUND);
 377                 return;
 378         }
 379
 380         /* Empty the existing database first.
 381          */
 382         CtdlDirectoryInit();
 383
 384         /* We want *all* vCards in this room */
 385         CtdlForEachMessage(MSGS_ALL, 0, NULL, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$",
 386                 NULL, vcard_add_to_directory, NULL);
 387
 388         getroom(&CC->room, hold_rm);    /* return to saved room */
 389         cprintf("%d Directory has been rebuilt.\n", CIT_OK);
 390 }
 391
 392
 393
 394
 395 /*
 396  * See if there is a valid Internet address in a vCard to use for outbound
 397  * Internet messages.  If there is, stick it in the buffer.
 398  */
 399 void extract_inet_email_addrs(char *emailaddrbuf, size_t emailaddrbuf_len,
 400                                 char *secemailaddrbuf, size_t secemailaddrbuf_len,
 401                                 struct vCard *v, int local_addrs_only) {
 402         char *s, *addr;
 403         int instance = 0;
 404         int saved_instance = 0;
 405
 406         /* Go through the vCard searching for *all* instances of
 407          * the "email;internet" key
 408          */
 409         while (s = vcard_get_prop(v, "email;internet", 0, instance++, 0),  s != NULL) {
 410                 addr = strdup(s);
 411                 striplt(addr);
 412                 if (!IsEmptyStr(addr)) {
 413                         if ( (IsDirectory(addr, 1)) ||
 414                              (!local_addrs_only) ) {
 415                                 ++saved_instance;
 416                                 if ((saved_instance == 1) && (emailaddrbuf != NULL)) {
 417                                         safestrncpy(emailaddrbuf, addr, emailaddrbuf_len);
 418                                 }
 419                                 else if ((saved_instance == 2) && (secemailaddrbuf != NULL)) {
 420                                         safestrncpy(secemailaddrbuf, addr, secemailaddrbuf_len);
 421                                 }
 422                                 else if ((saved_instance > 2) && (secemailaddrbuf != NULL)) {
 423                                         if ( (strlen(addr) + strlen(secemailaddrbuf) + 2)
 424                                            < secemailaddrbuf_len ) {
 425                                                 strcat(secemailaddrbuf, "|");
 426                                                 strcat(secemailaddrbuf, addr);
 427                                         }
 428                                 }
 429                         }
 430                 }
 431                 free(addr);
 432         }
 433 }
 434
 435
 436
 437 /*
 438  * See if there is a name / screen name / friendly name  in a vCard to use for outbound
 439  * Internet messages.  If there is, stick it in the buffer.
 440  */
 441 void extract_friendly_name(char *namebuf, size_t namebuf_len, struct vCard *v)
 442 {
 443         char *s;
 444
 445         s = vcard_get_prop(v, "fn", 0, 0, 0);
 446         if (s == NULL) {
 447                 s = vcard_get_prop(v, "n", 0, 0, 0);
 448         }
 449
 450         if (s != NULL) {
 451                 safestrncpy(namebuf, s, namebuf_len);
 452         }
 453 }
 454
 455
 456 /*
 457  * Callback function for vcard_upload_beforesave() hunts for the real vcard in the MIME structure
 458  */
 459 void vcard_extract_vcard(char *name, char *filename, char *partnum, char *disp,
 460                    void *content, char *cbtype, char *cbcharset, size_t length,
 461                    char *encoding, void *cbuserdata)
 462 {
 463         struct vCard **v = (struct vCard **) cbuserdata;
 464
 465         if (  (!strcasecmp(cbtype, "text/x-vcard"))
 466            || (!strcasecmp(cbtype, "text/vcard")) ) {
 467
 468                 CtdlLogPrintf(CTDL_DEBUG, "Part %s contains a vCard!  Loading...\n", partnum);
 469                 if (*v != NULL) {
 470                         vcard_free(*v);
 471                 }
 472                 *v = vcard_load(content);
 473         }
 474 }
 475
 476
 477 /*
 478  * This handler detects whether the user is attempting to save a new
 479  * vCard as part of his/her personal configuration, and handles the replace
 480  * function accordingly (delete the user's existing vCard in the config room
 481  * and in the global address book).
 482  */
 483 int vcard_upload_beforesave(struct CtdlMessage *msg) {
 484         char *ptr;
 485         char *s;
 486         char buf[SIZ];
 487         struct ctdluser usbuf;
 488         long what_user;
 489         struct vCard *v = NULL;
 490         char *ser = NULL;
 491         int i = 0;
 492         int yes_my_citadel_config = 0;
 493         int yes_any_vcard_room = 0;
 494
 495         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 496
 497         /* Is this some user's "My Citadel Config" room? */
 498         if ( (CC->room.QRflags && QR_MAILBOX)
 499            && (!strcasecmp(&CC->room.QRname[11], USERCONFIGROOM)) ) {
 500                 /* Yes, we want to do this */
 501                 yes_my_citadel_config = 1;
 502
 503 #ifdef VCARD_SAVES_BY_AIDES_ONLY
 504                 /* Prevent non-aides from performing registration changes */
 505                 if (CC->user.axlevel < 6) {
 506                         return(1);
 507                 }
 508 #endif
 509
 510         }
 511
 512         /* Is this a room with an address book in it? */
 513         if (CC->room.QRdefaultview == VIEW_ADDRESSBOOK) {
 514                 yes_any_vcard_room = 1;
 515         }
 516
 517         /* If neither condition exists, don't run this hook. */
 518         if ( (!yes_my_citadel_config) && (!yes_any_vcard_room) ) {
 519                 return(0);
 520         }
 521
 522         /* If this isn't a MIME message, don't bother. */
 523         if (msg->cm_format_type != 4) return(0);
 524
 525         /* Ok, if we got this far, look into the situation further... */
 526
 527         ptr = msg->cm_fields['M'];
 528         if (ptr == NULL) return(0);
 529
 530         mime_parser(msg->cm_fields['M'],
 531                 NULL,
 532                 *vcard_extract_vcard,
 533                 NULL, NULL,
 534                 &v,             /* user data ptr - put the vcard here */
 535                 0
 536         );
 537
 538         if (v == NULL) return(0);       /* no vCards were found in this message */
 539
 540         /* If users cannot create their own accounts, they cannot re-register either. */
 541         if ( (yes_my_citadel_config) && (config.c_disable_newu) && (CC->user.axlevel < 6) ) {
 542                 return(1);
 543         }
 544
 545         s = vcard_get_prop(v, "FN", 0, 0, 0);
 546         if (s) CtdlLogPrintf(CTDL_DEBUG, "vCard beforesave hook running for <%s>\n", s);
 547
 548         if (yes_my_citadel_config) {
 549                 /* Bingo!  The user is uploading a new vCard, so
 550                  * delete the old one.  First, figure out which user
 551                  * is being re-registered...
 552                  */
 553                 what_user = atol(CC->room.QRname);
 554
 555                 if (what_user == CC->user.usernum) {
 556                         /* It's the logged in user.  That was easy. */
 557                         memcpy(&usbuf, &CC->user, sizeof(struct ctdluser));
 558                 }
 559
 560                 else if (getuserbynumber(&usbuf, what_user) == 0) {
 561                         /* We fetched a valid user record */
 562                 }
 563
 564                 else {
 565                         /* somebody set up us the bomb! */
 566                         yes_my_citadel_config = 0;
 567                 }
 568         }
 569
 570         if (yes_my_citadel_config) {
 571                 /* Delete the user's old vCard.  This would probably
 572                  * get taken care of by the replication check, but we
 573                  * want to make sure there is absolutely only one
 574                  * vCard in the user's config room at all times.
 575                  *
 576                  */
 577                 CtdlDeleteMessages(CC->room.QRname, NULL, 0, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$");
 578
 579                 /* Make the author of the message the name of the user. */
 580                 if (msg->cm_fields['A'] != NULL) {
 581                         free(msg->cm_fields['A']);
 582                 }
 583                 msg->cm_fields['A'] = strdup(usbuf.fullname);
 584         }
 585
 586         /* Insert or replace RFC2739-compliant free/busy URL */
 587         if (yes_my_citadel_config) {
 588                 sprintf(buf, "http://%s/%s.vfb",
 589                         config.c_fqdn,
 590                         usbuf.fullname);
 591                 for (i=0; buf[i]; ++i) {
 592                         if (buf[i] == ' ') buf[i] = '_';
 593                 }
 594                 vcard_set_prop(v, "FBURL;PREF", buf, 0);
 595         }
 596
 597         /* If the vCard has no UID, then give it one. */
 598         s = vcard_get_prop(v, "UID", 0, 0, 0);
 599         if (s == NULL) {
 600                 generate_uuid(buf);
 601                 vcard_set_prop(v, "UID", buf, 0);
 602         }
 603
 604         /* Enforce local UID policy if applicable */
 605         if (yes_my_citadel_config) {
 606                 snprintf(buf, sizeof buf, VCARD_EXT_FORMAT, msg->cm_fields['A'], NODENAME);
 607                 vcard_set_prop(v, "UID", buf, 0);
 608         }
 609
 610         /*
 611          * Set the EUID of the message to the UID of the vCard.
 612          */
 613         if (msg->cm_fields['E'] != NULL)
 614         {
 615                 free(msg->cm_fields['E']);
 616                 msg->cm_fields['E'] = NULL;
 617         }
 618         s = vcard_get_prop(v, "UID", 0, 0, 0);
 619         if (s != NULL) {
 620                 msg->cm_fields['E'] = strdup(s);
 621                 if (msg->cm_fields['U'] == NULL) {
 622                         msg->cm_fields['U'] = strdup(s);
 623                 }
 624         }
 625
 626         /*
 627          * Set the Subject to the name in the vCard.
 628          */
 629         s = vcard_get_prop(v, "FN", 0, 0, 0);
 630         if (s == NULL) {
 631                 s = vcard_get_prop(v, "N", 0, 0, 0);
 632         }
 633         if (s != NULL) {
 634                 if (msg->cm_fields['U'] != NULL) {
 635                         free(msg->cm_fields['U']);
 636                 }
 637                 msg->cm_fields['U'] = strdup(s);
 638         }
 639
 640         /* Re-serialize it back into the msg body */
 641         ser = vcard_serialize(v);
 642         if (ser != NULL) {
 643                 msg->cm_fields['M'] = realloc(msg->cm_fields['M'], strlen(ser) + 1024);
 644                 sprintf(msg->cm_fields['M'],
 645                         "Content-type: " VCARD_MIME_TYPE
 646                         "\r\n\r\n%s\r\n", ser);
 647                 free(ser);
 648         }
 649
 650         /* Now allow the save to complete. */
 651         vcard_free(v);
 652         return(0);
 653 }
 654
 655
 656
 657 /*
 658  * This handler detects whether the user is attempting to save a new
 659  * vCard as part of his/her personal configuration, and handles the replace
 660  * function accordingly (copy the vCard from the config room to the global
 661  * address book).
 662  */
 663 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 664         char *ptr;
 665         int linelen;
 666         long I;
 667         struct vCard *v;
 668         int is_UserConf=0;
 669         int is_GAB=0;
 670
 671         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 672
 673         /* If this isn't the configuration room, or if this isn't a MIME
 674          * message, don't bother.
 675          */
 676         if (msg->cm_fields['O'] == NULL) return(0);
 677         if (!strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) is_UserConf = 1;
 678         if (!strcasecmp(msg->cm_fields['O'], ADDRESS_BOOK_ROOM)) is_GAB = 1;
 679         if (!is_UserConf && !is_GAB) return(0);
 680         if (msg->cm_format_type != 4) return(0);
 681
 682         ptr = msg->cm_fields['M'];
 683         if (ptr == NULL) return(0);
 684         while (ptr != NULL) {
 685
 686                 linelen = strcspn(ptr, "\n");
 687                 if (linelen == 0) return(0);    /* end of headers */
 688
 689                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
 690                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
 691                         /*
 692                          * Bingo!  The user is uploading a new vCard, so
 693                          * copy it to the Global Address Book room.
 694                          */
 695
 696                         I = atol(msg->cm_fields['I']);
 697                         if (I < 0L) return(0);
 698
 699                         /* Store our Internet return address in memory */
 700                         v = vcard_load(msg->cm_fields['M']);
 701                         extract_inet_email_addrs(CC->cs_inet_email, sizeof CC->cs_inet_email,
 702                                                 CC->cs_inet_other_emails, sizeof CC->cs_inet_other_emails,
 703                                                 v, 1);
 704                         extract_friendly_name(CC->cs_inet_fn, sizeof CC->cs_inet_fn, v);
 705                         vcard_free(v);
 706
 707                         if (!is_GAB)
 708                         {       // This is not the GAB
 709                                 /* Put it in the Global Address Book room... */
 710                                 CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I, 1, msg);
 711                         }
 712
 713                         /* ...and also in the directory database. */
 714                         vcard_add_to_directory(I, NULL);
 715
 716                         /* Some sites want an Aide to be notified when a
 717                          * user registers or re-registers
 718                          * But if the user was an Aide or was edited by an Aide then we can
 719                          * Assume they don't need validating.
 720                          */
 721                         if (CC->user.axlevel >= 6)
 722                                 return (0);
 723
 724                         set_mm_valid();
 725
 726                         /* ...which also means we need to flag the user */
 727                         lgetuser(&CC->user, CC->curr_user);
 728                         CC->user.flags |= (US_REGIS|US_NEEDVALID);
 729                         lputuser(&CC->user);
 730
 731                         return(0);
 732                 }
 733
 734                 ptr = strchr((char *)ptr, '\n');
 735                 if (ptr != NULL) ++ptr;
 736         }
 737
 738         return(0);
 739 }
 740
 741
 742
 743 /*
 744  * back end function used for callbacks
 745  */
 746 void vcard_gu_backend(long supplied_msgnum, void *userdata) {
 747         long *msgnum;
 748
 749         msgnum = (long *) userdata;
 750         *msgnum = supplied_msgnum;
 751 }
 752
 753
 754 /*
 755  * If this user has a vcard on disk, read it into memory, otherwise allocate
 756  * and return an empty vCard.
 757  */
 758 struct vCard *vcard_get_user(struct ctdluser *u) {
 759         char hold_rm[ROOMNAMELEN];
 760         char config_rm[ROOMNAMELEN];
 761         struct CtdlMessage *msg = NULL;
 762         struct vCard *v;
 763         long VCmsgnum;
 764
 765         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 766         MailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
 767
 768         if (getroom(&CC->room, config_rm) != 0) {
 769                 getroom(&CC->room, hold_rm);
 770                 return vcard_new();
 771         }
 772
 773         /* We want the last (and probably only) vcard in this room */
 774         VCmsgnum = (-1);
 775         CtdlForEachMessage(MSGS_LAST, 1, NULL, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$",
 776                 NULL, vcard_gu_backend, (void *)&VCmsgnum );
 777         getroom(&CC->room, hold_rm);    /* return to saved room */
 778
 779         if (VCmsgnum < 0L) return vcard_new();
 780
 781         msg = CtdlFetchMessage(VCmsgnum, 1);
 782         if (msg == NULL) return vcard_new();
 783
 784         v = vcard_load(msg->cm_fields['M']);
 785         CtdlFreeMessage(msg);
 786         return v;
 787 }
 788
 789
 790 /*
 791  * Store this user's vCard in the appropriate place
 792  */
 793 /*
 794  * Write our config to disk
 795  */
 796 void vcard_write_user(struct ctdluser *u, struct vCard *v) {
 797         char temp[PATH_MAX];
 798         FILE *fp;
 799         char *ser;
 800
 801         CtdlMakeTempFileName(temp, sizeof temp);
 802         ser = vcard_serialize(v);
 803
 804         fp = fopen(temp, "w");
 805         if (fp == NULL) return;
 806         if (ser == NULL) {
 807                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 808         } else {
 809                 fwrite(ser, strlen(ser), 1, fp);
 810                 free(ser);
 811         }
 812         fclose(fp);
 813
 814         /* This handy API function does all the work for us.
 815          * NOTE: normally we would want to set that last argument to 1, to
 816          * force the system to delete the user's old vCard.  But it doesn't
 817          * have to, because the vcard_upload_beforesave() hook above
 818          * is going to notice what we're trying to do, and delete the old vCard.
 819          */
 820         CtdlWriteObject(USERCONFIGROOM, /* which room */
 821                         VCARD_MIME_TYPE,/* MIME type */
 822                         temp,           /* temp file */
 823                         u,              /* which user */
 824                         0,              /* not binary */
 825                         0,              /* don't delete others of this type */
 826                         0);             /* no flags */
 827
 828         unlink(temp);
 829 }
 830
 831
 832
 833 /*
 834  * Old style "enter registration info" command.  This function simply honors
 835  * the REGI protocol command, translates the entered parameters into a vCard,
 836  * and enters the vCard into the user's configuration.
 837  */
 838 void cmd_regi(char *argbuf) {
 839         int a,b,c;
 840         char buf[SIZ];
 841         struct vCard *my_vcard;
 842
 843         char tmpaddr[SIZ];
 844         char tmpcity[SIZ];
 845         char tmpstate[SIZ];
 846         char tmpzip[SIZ];
 847         char tmpaddress[SIZ];
 848         char tmpcountry[SIZ];
 849
 850         unbuffer_output();
 851
 852         if (!(CC->logged_in)) {
 853                 cprintf("%d Not logged in.\n",ERROR + NOT_LOGGED_IN);
 854                 return;
 855         }
 856
 857         /* If users cannot create their own accounts, they cannot re-register either. */
 858         if ( (config.c_disable_newu) && (CC->user.axlevel < 6) ) {
 859                 cprintf("%d Self-service registration is not allowed here.\n",
 860                         ERROR + HIGHER_ACCESS_REQUIRED);
 861         }
 862
 863         my_vcard = vcard_get_user(&CC->user);
 864         strcpy(tmpaddr, "");
 865         strcpy(tmpcity, "");
 866         strcpy(tmpstate, "");
 867         strcpy(tmpzip, "");
 868         strcpy(tmpcountry, "USA");
 869
 870         cprintf("%d Send registration...\n", SEND_LISTING);
 871         a=0;
 872         while (client_getln(buf, sizeof buf), strcmp(buf,"000")) {
 873                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
 874                 if (a==1) strcpy(tmpaddr, buf);
 875                 if (a==2) strcpy(tmpcity, buf);
 876                 if (a==3) strcpy(tmpstate, buf);
 877                 if (a==4) {
 878                         for (c=0; buf[c]; ++c) {
 879                                 if ((buf[c]>='0') && (buf[c]<='9')) {
 880                                         b = strlen(tmpzip);
 881                                         tmpzip[b] = buf[c];
 882                                         tmpzip[b+1] = 0;
 883                                 }
 884                         }
 885                 }
 886                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf, 0);
 887                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
 888                 if (a==7) strcpy(tmpcountry, buf);
 889                 ++a;
 890         }
 891
 892         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
 893                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
 894         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
 895         vcard_write_user(&CC->user, my_vcard);
 896         vcard_free(my_vcard);
 897 }
 898
 899
 900 /*
 901  * Protocol command to fetch registration info for a user
 902  */
 903 void cmd_greg(char *argbuf)
 904 {
 905         struct ctdluser usbuf;
 906         struct vCard *v;
 907         char *s;
 908         char who[USERNAME_SIZE];
 909         char adr[256];
 910         char buf[256];
 911
 912         extract_token(who, argbuf, 0, '|', sizeof who);
 913
 914         if (!(CC->logged_in)) {
 915                 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
 916                 return;
 917         }
 918
 919         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 920
 921         if ((CC->user.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 922                 cprintf("%d Higher access required.\n",
 923                         ERROR + HIGHER_ACCESS_REQUIRED);
 924                 return;
 925         }
 926
 927         if (getuser(&usbuf, who) != 0) {
 928                 cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, who);
 929                 return;
 930         }
 931
 932         v = vcard_get_user(&usbuf);
 933
 934         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 935         cprintf("%ld\n", usbuf.usernum);
 936         cprintf("%s\n", usbuf.password);
 937         s = vcard_get_prop(v, "n", 0, 0, 0);
 938         cprintf("%s\n", s ? s : " ");   /* name */
 939
 940         s = vcard_get_prop(v, "adr", 0, 0, 0);
 941         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 942
 943         extract_token(buf, adr, 2, ';', sizeof buf);
 944         cprintf("%s\n", buf);                           /* street */
 945         extract_token(buf, adr, 3, ';', sizeof buf);
 946         cprintf("%s\n", buf);                           /* city */
 947         extract_token(buf, adr, 4, ';', sizeof buf);
 948         cprintf("%s\n", buf);                           /* state */
 949         extract_token(buf, adr, 5, ';', sizeof buf);
 950         cprintf("%s\n", buf);                           /* zip */
 951
 952         s = vcard_get_prop(v, "tel;home", 0, 0, 0);
 953         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
 954         if (s != NULL) {
 955                 cprintf("%s\n", s);
 956         }
 957         else {
 958                 cprintf(" \n");
 959         }
 960
 961         cprintf("%d\n", usbuf.axlevel);
 962
 963         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
 964         cprintf("%s\n", s ? s : " ");
 965         s = vcard_get_prop(v, "adr", 0, 0, 0);
 966         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 967
 968         extract_token(buf, adr, 6, ';', sizeof buf);
 969         cprintf("%s\n", buf);                           /* country */
 970         cprintf("000\n");
 971         vcard_free(v);
 972 }
 973
 974
 975
 976 /*
 977  * When a user is being created, create his/her vCard.
 978  */
 979 void vcard_newuser(struct ctdluser *usbuf) {
 980         char vname[256];
 981         char buf[256];
 982         int i;
 983         struct vCard *v;
 984
 985         vcard_fn_to_n(vname, usbuf->fullname, sizeof vname);
 986         CtdlLogPrintf(CTDL_DEBUG, "Converted <%s> to <%s>\n", usbuf->fullname, vname);
 987
 988         /* Create and save the vCard */
 989         v = vcard_new();
 990         if (v == NULL) return;
 991         vcard_add_prop(v, "fn", usbuf->fullname);
 992         vcard_add_prop(v, "n", vname);
 993         vcard_add_prop(v, "adr", "adr:;;_;_;_;00000;__");
 994
 995 #ifdef HAVE_GETPWUID_R
 996         /* If using host auth mode, we add an email address based on the login */
 997         if (config.c_auth_mode == AUTHMODE_HOST) {
 998                 struct passwd pwd;
 999                 struct passwd **result = NULL;
1000                 char pwd_buffer[SIZ];
1001
1002                 if (getpwuid_r(usbuf->uid, &pwd, pwd_buffer, sizeof pwd_buffer, result) == 0) {
1003                         snprintf(buf, sizeof buf, "%s@%s", pwd.pw_name, config.c_fqdn);
1004                         vcard_add_prop(v, "email;internet", buf);
1005                 }
1006         }
1007 #endif
1008
1009         /* Everyone gets an email address based on their display name */
1010         snprintf(buf, sizeof buf, "%s@%s", usbuf->fullname, config.c_fqdn);
1011         for (i=0; buf[i]; ++i) {
1012                 if (buf[i] == ' ') buf[i] = '_';
1013         }
1014         vcard_add_prop(v, "email;internet", buf);
1015
1016
1017         vcard_write_user(usbuf, v);
1018         vcard_free(v);
1019 }
1020
1021
1022 /*
1023  * When a user is being deleted, we have to remove his/her vCard.
1024  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
1025  * field, and the same Exclusive ID as the existing card.
1026  */
1027 void vcard_purge(struct ctdluser *usbuf) {
1028         struct CtdlMessage *msg;
1029         char buf[SIZ];
1030
1031         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
1032         if (msg == NULL) return;
1033         memset(msg, 0, sizeof(struct CtdlMessage));
1034
1035         msg->cm_magic = CTDLMESSAGE_MAGIC;
1036         msg->cm_anon_type = MES_NORMAL;
1037         msg->cm_format_type = 0;
1038         msg->cm_fields['A'] = strdup(usbuf->fullname);
1039         msg->cm_fields['O'] = strdup(ADDRESS_BOOK_ROOM);
1040         msg->cm_fields['N'] = strdup(NODENAME);
1041         msg->cm_fields['M'] = strdup("Purge this vCard\n");
1042
1043         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
1044                         msg->cm_fields['A'], NODENAME);
1045         msg->cm_fields['E'] = strdup(buf);
1046
1047         msg->cm_fields['S'] = strdup("CANCEL");
1048
1049         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM, QP_EADDR);
1050         CtdlFreeMessage(msg);
1051 }
1052
1053
1054 /*
1055  * Grab vCard directory stuff out of incoming network messages
1056  */
1057 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
1058         char *ptr;
1059         int linelen;
1060
1061         if (msg == NULL) return(0);
1062
1063         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
1064                 return(0);
1065         }
1066
1067         if (msg->cm_format_type != 4) return(0);
1068
1069         ptr = msg->cm_fields['M'];
1070         if (ptr == NULL) return(0);
1071         while (ptr != NULL) {
1072
1073                 linelen = strcspn(ptr, "\n");
1074                 if (linelen == 0) return(0);    /* end of headers */
1075
1076                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
1077                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
1078                         /* It's a vCard.  Add it to the directory. */
1079                         vcard_extract_internet_addresses(msg, CtdlDirectoryAddUser);
1080                         return(0);
1081                 }
1082
1083                 ptr = strchr((char *)ptr, '\n');
1084                 if (ptr != NULL) ++ptr;
1085         }
1086
1087         return(0);
1088 }
1089
1090
1091
1092 /*
1093  * When a vCard is being removed from the Global Address Book room, remove it
1094  * from the directory as well.
1095  */
1096 void vcard_delete_remove(char *room, long msgnum) {
1097         struct CtdlMessage *msg;
1098         char *ptr;
1099         int linelen;
1100
1101         if (msgnum <= 0L) return;
1102
1103         if (room == NULL) return;
1104
1105         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
1106                 return;
1107         }
1108
1109         msg = CtdlFetchMessage(msgnum, 1);
1110         if (msg == NULL) return;
1111
1112         ptr = msg->cm_fields['M'];
1113         if (ptr == NULL) goto EOH;
1114         while (ptr != NULL) {
1115                 linelen = strcspn(ptr, "\n");
1116                 if (linelen == 0) goto EOH;
1117
1118                 if (  (!strncasecmp(ptr, "Content-type: text/x-vcard", 26))
1119                    || (!strncasecmp(ptr, "Content-type: text/vcard", 24)) ) {
1120                         /* Bingo!  A vCard is being deleted. */
1121                         vcard_extract_internet_addresses(msg, CtdlDirectoryDelUser);
1122                         ctdl_vcard_to_directory(msg, V2L_DELETE);
1123                 }
1124                 ptr = strchr((char *)ptr, '\n');
1125                 if (ptr != NULL) ++ptr;
1126         }
1127
1128 EOH:    CtdlFreeMessage(msg);
1129 }
1130
1131
1132
1133 /*
1134  * Get Valid Screen Names
1135  */
1136 void cmd_gvsn(char *argbuf)
1137 {
1138         if (CtdlAccessCheck(ac_logged_in)) return;
1139
1140         cprintf("%d valid screen names:\n", LISTING_FOLLOWS);
1141         cprintf("%s\n", CC->user.fullname);
1142         if ( (!IsEmptyStr(CC->cs_inet_fn)) && (strcasecmp(CC->user.fullname, CC->cs_inet_fn)) ) {
1143                 cprintf("%s\n", CC->cs_inet_fn);
1144         }
1145         cprintf("000\n");
1146 }
1147
1148
1149 /*
1150  * Get Valid Email Addresses
1151  */
1152 void cmd_gvea(char *argbuf)
1153 {
1154         int num_secondary_emails = 0;
1155         int i;
1156         char buf[256];
1157
1158         if (CtdlAccessCheck(ac_logged_in)) return;
1159
1160         cprintf("%d valid email addresses:\n", LISTING_FOLLOWS);
1161         if (!IsEmptyStr(CC->cs_inet_email)) {
1162                 cprintf("%s\n", CC->cs_inet_email);
1163         }
1164         if (!IsEmptyStr(CC->cs_inet_other_emails)) {
1165                 num_secondary_emails = num_tokens(CC->cs_inet_other_emails, '|');
1166                 for (i=0; i<num_secondary_emails; ++i) {
1167                         extract_token(buf, CC->cs_inet_other_emails,i,'|',sizeof CC->cs_inet_other_emails);
1168                         cprintf("%s\n", buf);
1169                 }
1170         }
1171         cprintf("000\n");
1172 }
1173
1174
1175
1176
1177 /*
1178  * Callback function for cmd_dvca() that hunts for vCard content types
1179  * and outputs any email addresses found within.
1180  */
1181 void dvca_mime_callback(char *name, char *filename, char *partnum, char *disp,
1182                 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
1183                 void *cbuserdata) {
1184
1185         struct vCard *v;
1186         char displayname[256];
1187         int displayname_len;
1188         char emailaddr[256];
1189         int i;
1190         int has_commas = 0;
1191
1192         if ( (strcasecmp(cbtype, "text/vcard")) && (strcasecmp(cbtype, "text/x-vcard")) ) {
1193                 return;
1194         }
1195
1196         v = vcard_load(content);
1197         if (v == NULL) return;
1198
1199         extract_friendly_name(displayname, sizeof displayname, v);
1200         extract_inet_email_addrs(emailaddr, sizeof emailaddr, NULL, 0, v, 0);
1201
1202         displayname_len = strlen(displayname);
1203         for (i=0; i<displayname_len; ++i) {
1204                 if (displayname[i] == '\"') displayname[i] = ' ';
1205                 if (displayname[i] == ';') displayname[i] = ',';
1206                 if (displayname[i] == ',') has_commas = 1;
1207         }
1208         striplt(displayname);
1209
1210         cprintf("%s%s%s <%s>\n",
1211                 (has_commas ? "\"" : ""),
1212                 displayname,
1213                 (has_commas ? "\"" : ""),
1214                 emailaddr
1215         );
1216
1217         vcard_free(v);
1218 }
1219
1220
1221 /*
1222  * Back end callback function for cmd_dvca()
1223  *
1224  * It's basically just passed a list of message numbers, which we're going
1225  * to fetch off the disk and then pass along to the MIME parser via another
1226  * layer of callback...
1227  */
1228 void dvca_callback(long msgnum, void *userdata) {
1229         struct CtdlMessage *msg = NULL;
1230
1231         msg = CtdlFetchMessage(msgnum, 1);
1232         if (msg == NULL) return;
1233         mime_parser(msg->cm_fields['M'],
1234                 NULL,
1235                 *dvca_mime_callback,    /* callback function */
1236                 NULL, NULL,
1237                 NULL,                   /* user data */
1238                 0
1239         );
1240         CtdlFreeMessage(msg);
1241 }
1242
1243
1244 /*
1245  * Dump VCard Addresses
1246  */
1247 void cmd_dvca(char *argbuf)
1248 {
1249         if (CtdlAccessCheck(ac_logged_in)) return;
1250
1251         cprintf("%d addresses:\n", LISTING_FOLLOWS);
1252         CtdlForEachMessage(MSGS_ALL, 0, NULL, NULL, NULL, dvca_callback, NULL);
1253         cprintf("000\n");
1254 }
1255
1256
1257 /*
1258  * Query Directory
1259  */
1260 void cmd_qdir(char *argbuf) {
1261         char citadel_addr[256];
1262         char internet_addr[256];
1263
1264         if (CtdlAccessCheck(ac_logged_in)) return;
1265
1266         extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1267
1268         if (CtdlDirectoryLookup(citadel_addr, internet_addr, sizeof citadel_addr) != 0) {
1269                 cprintf("%d %s was not found.\n",
1270                         ERROR + NO_SUCH_USER, internet_addr);
1271                 return;
1272         }
1273
1274         cprintf("%d %s\n", CIT_OK, citadel_addr);
1275 }
1276
1277 /*
1278  * Query Directory, in fact an alias to match postfix tcp auth.
1279  */
1280 void check_get(void) {
1281         char internet_addr[256];
1282
1283         char cmdbuf[SIZ];
1284
1285         time(&CC->lastcmd);
1286         memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
1287         if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
1288                 CtdlLogPrintf(CTDL_CRIT, "Client disconnected: ending session.\n");
1289                 CC->kill_me = 1;
1290                 return;
1291         }
1292         CtdlLogPrintf(CTDL_INFO, ": %s\n", cmdbuf);
1293         while (strlen(cmdbuf) < 3) strcat(cmdbuf, " ");
1294
1295         if (strcasecmp(cmdbuf, "GET "));
1296         {
1297                 struct recptypes *rcpt;
1298                 char *argbuf = &cmdbuf[4];
1299
1300                 extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
1301                 rcpt = validate_recipients(internet_addr, NULL, CHECK_EXISTANCE);
1302                 if ((rcpt != NULL)&&
1303                         (
1304                          (*rcpt->recp_local != '\0')||
1305                          (*rcpt->recp_room != '\0')||
1306                          (*rcpt->recp_ignet != '\0')))
1307                 {
1308
1309                         cprintf("200 OK %s\n", internet_addr);
1310                         CtdlLogPrintf(CTDL_INFO, "sending 200 OK for the room %s\n", rcpt->display_recp);
1311                 }
1312                 else
1313                 {
1314                         cprintf("500 REJECT noone here by that name.\n");
1315
1316                         CtdlLogPrintf(CTDL_INFO, "sending 500 REJECT noone here by that name: %s\n", internet_addr);
1317                 }
1318                 if (rcpt != NULL) free_recipients(rcpt);
1319         }
1320 }
1321
1322 void check_get_greeting(void) {
1323 /* dummy function, we have no greeting in this verry simple protocol. */
1324 }
1325
1326
1327 /*
1328  * We don't know if the Contacts room exists so we just create it at login
1329  */
1330 void vcard_create_room(void)
1331 {
1332         struct ctdlroom qr;
1333         struct visit vbuf;
1334
1335         /* Create the calendar room if it doesn't already exist */
1336         create_room(USERCONTACTSROOM, 4, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1337
1338         /* Set expiration policy to manual; otherwise objects will be lost! */
1339         if (lgetroom(&qr, USERCONTACTSROOM)) {
1340                 CtdlLogPrintf(CTDL_ERR, "Couldn't get the user CONTACTS room!\n");
1341                 return;
1342         }
1343         qr.QRep.expire_mode = EXPIRE_MANUAL;
1344         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1345         lputroom(&qr);
1346
1347         /* Set the view to a calendar view */
1348         CtdlGetRelationship(&vbuf, &CC->user, &qr);
1349         vbuf.v_view = 2;        /* 2 = address book view */
1350         CtdlSetRelationship(&vbuf, &CC->user, &qr);
1351
1352         return;
1353 }
1354
1355
1356
1357
1358 /*
1359  * When a user logs in...
1360  */
1361 void vcard_session_login_hook(void) {
1362         struct vCard *v = NULL;
1363
1364         v = vcard_get_user(&CC->user);
1365         extract_inet_email_addrs(CC->cs_inet_email, sizeof CC->cs_inet_email,
1366                                 CC->cs_inet_other_emails, sizeof CC->cs_inet_other_emails,
1367                                 v, 1);
1368         extract_friendly_name(CC->cs_inet_fn, sizeof CC->cs_inet_fn, v);
1369         vcard_free(v);
1370
1371         vcard_create_room();
1372 }
1373
1374
1375 /*
1376  * Turn an arbitrary RFC822 address into a struct vCard for possible
1377  * inclusion into an address book.
1378  */
1379 struct vCard *vcard_new_from_rfc822_addr(char *addr) {
1380         struct vCard *v;
1381         char user[256], node[256], name[256], email[256], n[256], uid[256];
1382         int i;
1383
1384         v = vcard_new();
1385         if (v == NULL) return(NULL);
1386
1387         process_rfc822_addr(addr, user, node, name);
1388         vcard_set_prop(v, "fn", name, 0);
1389
1390         vcard_fn_to_n(n, name, sizeof n);
1391         vcard_set_prop(v, "n", n, 0);
1392
1393         snprintf(email, sizeof email, "%s@%s", user, node);
1394         vcard_set_prop(v, "email;internet", email, 0);
1395
1396         snprintf(uid, sizeof uid, "collected: %s %s@%s", name, user, node);
1397         for (i=0; uid[i]; ++i) {
1398                 if (isspace(uid[i])) uid[i] = '_';
1399                 uid[i] = tolower(uid[i]);
1400         }
1401         vcard_set_prop(v, "UID", uid, 0);
1402
1403         return(v);
1404 }
1405
1406
1407
1408 /*
1409  * This is called by store_harvested_addresses() to remove from the
1410  * list any addresses we already have in our address book.
1411  */
1412 void strip_addresses_already_have(long msgnum, void *userdata) {
1413         char *collected_addresses;
1414         struct CtdlMessage *msg = NULL;
1415         struct vCard *v;
1416         char *value = NULL;
1417         int i, j;
1418         char addr[256], user[256], node[256], name[256];
1419
1420         collected_addresses = (char *)userdata;
1421
1422         msg = CtdlFetchMessage(msgnum, 1);
1423         if (msg == NULL) return;
1424         v = vcard_load(msg->cm_fields['M']);
1425         CtdlFreeMessage(msg);
1426
1427         i = 0;
1428         while (value = vcard_get_prop(v, "email", 1, i++, 0), value != NULL) {
1429
1430                 for (j=0; j<num_tokens(collected_addresses, ','); ++j) {
1431                         extract_token(addr, collected_addresses, j, ',', sizeof addr);
1432
1433                         /* Remove the address if we already have it! */
1434                         process_rfc822_addr(addr, user, node, name);
1435                         snprintf(addr, sizeof addr, "%s@%s", user, node);
1436                         if (!strcasecmp(value, addr)) {
1437                                 remove_token(collected_addresses, j, ',');
1438                         }
1439                 }
1440
1441         }
1442
1443         vcard_free(v);
1444 }
1445
1446
1447
1448 /*
1449  * Back end function for store_harvested_addresses()
1450  */
1451 void store_this_ha(struct addresses_to_be_filed *aptr) {
1452         struct CtdlMessage *vmsg = NULL;
1453         long vmsgnum = (-1L);
1454         char *ser = NULL;
1455         struct vCard *v = NULL;
1456         char recipient[256];
1457         int i;
1458
1459         /* First remove any addresses we already have in the address book */
1460         usergoto(aptr->roomname, 0, 0, NULL, NULL);
1461         CtdlForEachMessage(MSGS_ALL, 0, NULL, "^[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$", NULL,
1462                 strip_addresses_already_have, aptr->collected_addresses);
1463
1464         if (!IsEmptyStr(aptr->collected_addresses))
1465            for (i=0; i<num_tokens(aptr->collected_addresses, ','); ++i) {
1466
1467                 /* Make a vCard out of each address */
1468                 extract_token(recipient, aptr->collected_addresses, i, ',', sizeof recipient);
1469                 striplt(recipient);
1470                 v = vcard_new_from_rfc822_addr(recipient);
1471                 if (v != NULL) {
1472                         vmsg = malloc(sizeof(struct CtdlMessage));
1473                         memset(vmsg, 0, sizeof(struct CtdlMessage));
1474                         vmsg->cm_magic = CTDLMESSAGE_MAGIC;
1475                         vmsg->cm_anon_type = MES_NORMAL;
1476                         vmsg->cm_format_type = FMT_RFC822;
1477                         vmsg->cm_fields['A'] = strdup("Citadel");
1478                         vmsg->cm_fields['E'] =  strdup(vcard_get_prop(v, "UID", 0, 0, 0));
1479                         ser = vcard_serialize(v);
1480                         if (ser != NULL) {
1481                                 vmsg->cm_fields['M'] = malloc(strlen(ser) + 1024);
1482                                 sprintf(vmsg->cm_fields['M'],
1483                                         "Content-type: " VCARD_MIME_TYPE
1484                                         "\r\n\r\n%s\r\n", ser);
1485                                 free(ser);
1486                         }
1487                         vcard_free(v);
1488
1489                         CtdlLogPrintf(CTDL_DEBUG, "Adding contact: %s\n", recipient);
1490                         vmsgnum = CtdlSubmitMsg(vmsg, NULL, aptr->roomname, QP_EADDR);
1491                         CtdlFreeMessage(vmsg);
1492                 }
1493         }
1494
1495         free(aptr->roomname);
1496         free(aptr->collected_addresses);
1497         free(aptr);
1498 }
1499
1500
1501 /*
1502  * When a user sends a message, we may harvest one or more email addresses
1503  * from the recipient list to be added to the user's address book.  But we
1504  * want to do this asynchronously so it doesn't keep the user waiting.
1505  */
1506 void store_harvested_addresses(void) {
1507
1508         struct addresses_to_be_filed *aptr = NULL;
1509
1510         if (atbf == NULL) return;
1511
1512         begin_critical_section(S_ATBF);
1513         while (atbf != NULL) {
1514                 aptr = atbf;
1515                 atbf = atbf->next;
1516                 end_critical_section(S_ATBF);
1517                 store_this_ha(aptr);
1518                 begin_critical_section(S_ATBF);
1519         }
1520         end_critical_section(S_ATBF);
1521 }
1522
1523
1524 /*
1525  * Function to output vCard data as plain text.  Nobody uses MSG0 anymore, so
1526  * really this is just so we expose the vCard data to the full text indexer.
1527  */
1528 void vcard_fixed_output(char *ptr, int len) {
1529         char *serialized_vcard;
1530         struct vCard *v;
1531         char *key, *value;
1532         int i = 0;
1533
1534         serialized_vcard = malloc(len + 1);
1535         safestrncpy(serialized_vcard, ptr, len+1);
1536         v = vcard_load(serialized_vcard);
1537         free(serialized_vcard);
1538
1539         i = 0;
1540         while (key = vcard_get_prop(v, "", 0, i, 1), key != NULL) {
1541                 value = vcard_get_prop(v, "", 0, i++, 0);
1542                 cprintf("%s\n", value);
1543         }
1544
1545         vcard_free(v);
1546 }
1547
1548
1549 const char *CitadelServiceDICT_TCP="DICT_TCP";
1550
1551 CTDL_MODULE_INIT(vcard)
1552 {
1553         struct ctdlroom qr;
1554         char filename[256];
1555         FILE *fp;
1556
1557         if (!threading)
1558         {
1559                 CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN);
1560                 CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
1561                 CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
1562                 CtdlRegisterDeleteHook(vcard_delete_remove);
1563                 CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
1564                 CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
1565                 CtdlRegisterProtoHook(cmd_igab, "IGAB",
1566                                                 "Initialize Global Address Book");
1567                 CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
1568                 CtdlRegisterProtoHook(cmd_gvsn, "GVSN", "Get Valid Screen Names");
1569                 CtdlRegisterProtoHook(cmd_gvea, "GVEA", "Get Valid Email Addresses");
1570                 CtdlRegisterProtoHook(cmd_dvca, "DVCA", "Dump VCard Addresses");
1571                 CtdlRegisterUserHook(vcard_newuser, EVT_NEWUSER);
1572                 CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
1573                 CtdlRegisterNetprocHook(vcard_extract_from_network);
1574                 CtdlRegisterSessionHook(store_harvested_addresses, EVT_TIMER);
1575                 CtdlRegisterFixedOutputHook("text/x-vcard", vcard_fixed_output);
1576                 CtdlRegisterFixedOutputHook("text/vcard", vcard_fixed_output);
1577
1578                 /* Create the Global ADdress Book room if necessary */
1579                 create_room(ADDRESS_BOOK_ROOM, 3, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1580
1581                 /* Set expiration policy to manual; otherwise objects will be lost! */
1582                 if (!lgetroom(&qr, ADDRESS_BOOK_ROOM)) {
1583                         qr.QRep.expire_mode = EXPIRE_MANUAL;
1584                         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1585                         lputroom(&qr);
1586
1587                         /*
1588                          * Also make sure it has a netconfig file, so the networker runs
1589                          * on this room even if we don't share it with any other nodes.
1590                          * This allows the CANCEL messages (i.e. "Purge this vCard") to be
1591                          * purged.
1592                          */
1593                         assoc_file_name(filename, sizeof filename, &qr, ctdl_netcfg_dir);
1594                         fp = fopen(filename, "a");
1595                         if (fp != NULL) fclose(fp);
1596                         chown(filename, CTDLUID, (-1));
1597                 }
1598
1599                 /* for postfix tcpdict */
1600                 CtdlRegisterServiceHook(config.c_pftcpdict_port,        /* Postfix */
1601                                         NULL,
1602                                         check_get_greeting,
1603                                         check_get,
1604                                         NULL,
1605                                         CitadelServiceDICT_TCP);
1606         }
1607
1608         /* return our Subversion id for the Log */
1609         return "$Id$";
1610 }