citadel/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) 1999-2002 / released under the GNU General Public License
   8  */
   9
  10 /*
  11  * Where we keep messages containing the vCards that source our directory.  It
  12  * makes no sense to change this, because you'd have to change it on every
  13  * system on the network.  That would be stupid.
  14  */
  15 #define ADDRESS_BOOK_ROOM       "Global Address Book"
  16
  17 /*
  18  * Format of the "Extended ID" field of the message containing a user's
  19  * vCard.  Doesn't matter what it really looks like as long as it's both
  20  * unique and consistent (because we use it for replication checking to
  21  * delete the old vCard network-wide when the user enters a new one).
  22  */
  23 #define VCARD_EXT_FORMAT        "Citadel vCard: personal card for %s at %s"
  24
  25
  26 #include "sysdep.h"
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <stdio.h>
  30 #include <fcntl.h>
  31 #include <signal.h>
  32 #include <pwd.h>
  33 #include <errno.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 "sysdep_decls.h"
  53 #include "citserver.h"
  54 #include "support.h"
  55 #include "config.h"
  56 #include "control.h"
  57 #include "serv_extensions.h"
  58 #include "room_ops.h"
  59 #include "user_ops.h"
  60 #include "policy.h"
  61 #include "database.h"
  62 #include "msgbase.h"
  63 #include "internet_addressing.h"
  64 #include "tools.h"
  65 #include "vcard.h"
  66
  67 struct vcard_internal_info {
  68         long msgnum;
  69 };
  70
  71 /* Message number symbol used internally by these functions */
  72 unsigned long SYM_VCARD;
  73 #define VC ((struct vcard_internal_info *)CtdlGetUserData(SYM_VCARD))
  74
  75
  76 /*
  77  * set global flag calling for an aide to validate new users
  78  */
  79 void set_mm_valid(void) {
  80         begin_critical_section(S_CONTROL);
  81         get_control();
  82         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
  83         put_control();
  84         end_critical_section(S_CONTROL);
  85 }
  86
  87
  88
  89 /*
  90  * Extract Internet e-mail addresses from a message containing a vCard, and
  91  * perform a callback for any found.
  92  */
  93 void vcard_extract_internet_addresses(struct CtdlMessage *msg,
  94                                 void (*callback)(char *, char *) ) {
  95         struct vCard *v;
  96         char *s;
  97         char *addr;
  98         char citadel_address[SIZ];
  99         int instance = 0;
 100         int found_something = 0;
 101
 102         if (msg->cm_fields['A'] == NULL) return;
 103         if (msg->cm_fields['N'] == NULL) return;
 104         snprintf(citadel_address, sizeof citadel_address, "%s @ %s",
 105                 msg->cm_fields['A'], msg->cm_fields['N']);
 106
 107         v = vcard_load(msg->cm_fields['M']);
 108         if (v == NULL) return;
 109
 110         /* Go through the vCard searching for *all* instances of
 111          * the "email;internet" key
 112          */
 113         do {
 114                 s = vcard_get_prop(v, "email;internet", 0, instance++, 0);
 115                 if (s != NULL) {
 116                         addr = strdoop(s);
 117                         striplt(addr);
 118                         if (strlen(addr) > 0) {
 119                                 if (callback != NULL) {
 120                                         callback(addr, citadel_address);
 121                                 }
 122                         }
 123                         phree(addr);
 124                         found_something = 1;
 125                 }
 126                 else {
 127                         found_something = 0;
 128                 }
 129         } while(found_something);
 130
 131         vcard_free(v);
 132 }
 133
 134
 135
 136 /*
 137  * Callback for vcard_add_to_directory()
 138  * (Lotsa ugly nested callbacks.  Oh well.)
 139  * This little shim function makes sure we're not
 140  */
 141 void vcard_directory_add_user(char *internet_addr, char *citadel_addr) {
 142         char buf[SIZ];
 143
 144         /* We have to validate that we're not stepping on someone else's
 145          * email address ... but only if we're logged in.  Otherwise it's
 146          * probably just the networker or something.
 147          */
 148         if (CC->logged_in) {
 149                 lprintf(9, "Checking for <%s>...\n", internet_addr);
 150                 if (CtdlDirectoryLookup(buf, internet_addr) == 0) {
 151                         if (strcasecmp(buf, citadel_addr)) {
 152                                 /* This address belongs to someone else.
 153                                  * Bail out silently without saving.
 154                                  */
 155                                 lprintf(9, "DOOP!\n");
 156                                 return;
 157                         }
 158                 }
 159         }
 160         lprintf(9, "ADDING!\n");
 161         CtdlDirectoryAddUser(internet_addr, citadel_addr);
 162 }
 163
 164
 165 /*
 166  * Back end function for cmd_igab()
 167  */
 168 void vcard_add_to_directory(long msgnum, void *data) {
 169         struct CtdlMessage *msg;
 170
 171         msg = CtdlFetchMessage(msgnum);
 172         if (msg != NULL) {
 173                 vcard_extract_internet_addresses(msg, vcard_directory_add_user);
 174         }
 175
 176         CtdlFreeMessage(msg);
 177 }
 178
 179
 180 /*
 181  * Initialize Global Adress Book
 182  */
 183 void cmd_igab(char *argbuf) {
 184         char hold_rm[ROOMNAMELEN];
 185
 186         if (CtdlAccessCheck(ac_aide)) return;
 187
 188         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 189
 190         if (getroom(&CC->room, ADDRESS_BOOK_ROOM) != 0) {
 191                 getroom(&CC->room, hold_rm);
 192                 cprintf("%d cannot get address book room\n", ERROR);
 193                 return;
 194         }
 195
 196         /* Empty the existing database first.
 197          */
 198         CtdlDirectoryInit();
 199
 200         /* We want the last (and probably only) vcard in this room */
 201         CtdlForEachMessage(MSGS_ALL, 0, "text/x-vcard",
 202                 NULL, vcard_add_to_directory, NULL);
 203
 204         getroom(&CC->room, hold_rm);    /* return to saved room */
 205         cprintf("%d Directory has been rebuilt.\n", CIT_OK);
 206 }
 207
 208
 209
 210
 211 /*
 212  * See if there is a valid Internet address in a vCard to use for outbound
 213  * Internet messages.  If there is, stick it in CC->cs_inet_email.
 214  */
 215 void vcard_populate_cs_inet_email(struct vCard *v) {
 216         char *s, *addr;
 217         int continue_searching = 1;
 218         int instance = 0;
 219
 220         /* Go through the vCard searching for *all* instances of
 221          * the "email;internet" key
 222          */
 223         do {
 224                 s = vcard_get_prop(v, "email;internet", 0, instance++, 0);
 225                 if (s != NULL) {
 226                         continue_searching = 1;
 227                         addr = strdoop(s);
 228                         striplt(addr);
 229                         if (strlen(addr) > 0) {
 230                                 if (IsDirectory(addr)) {
 231                                         continue_searching = 0;
 232                                         safestrncpy(CC->cs_inet_email,
 233                                                 addr,
 234                                                 sizeof(CC->cs_inet_email)
 235                                         );
 236                                 }
 237                         }
 238                         phree(addr);
 239                 }
 240                 else {
 241                         continue_searching = 0;
 242                 }
 243         } while(continue_searching);
 244 }
 245
 246
 247
 248 /*
 249  * This handler detects whether the user is attempting to save a new
 250  * vCard as part of his/her personal configuration, and handles the replace
 251  * function accordingly (delete the user's existing vCard in the config room
 252  * and in the global address book).
 253  */
 254 int vcard_upload_beforesave(struct CtdlMessage *msg) {
 255         char *ptr;
 256         int linelen;
 257         char buf[SIZ];
 258         struct ctdluser usbuf;
 259         long what_user;
 260
 261         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 262
 263         /* If this isn't a "My Citadel Config" room, don't bother. */
 264         if ( (CC->room.QRflags && QR_MAILBOX)
 265            && (!strcasecmp(&CC->room.QRname[11], USERCONFIGROOM)) ) {
 266                 /* Yes, we want to do this */
 267         }
 268         else {
 269                 return(0);
 270         }
 271
 272         /* If this isn't a MIME message, don't bother. */
 273         if (msg->cm_format_type != 4) return(0);
 274
 275         /* Ok, if we got this far, look into the situation further... */
 276
 277         ptr = msg->cm_fields['M'];
 278         if (ptr == NULL) return(0);
 279         while (ptr != NULL) {
 280
 281                 linelen = strcspn(ptr, "\n");
 282                 if (linelen == 0) return(0);    /* end of headers */
 283
 284                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 285                         /* Bingo!  The user is uploading a new vCard, so
 286                          * delete the old one.  First, figure out which user
 287                          * is being re-registered...
 288                          */
 289                         what_user = atol(CC->room.QRname);
 290
 291                         if (what_user == CC->user.usernum) {
 292                                 /* It's the logged in user.  That was easy. */
 293                                 memcpy(&usbuf, &CC->user,
 294                                         sizeof(struct ctdluser) );
 295                         }
 296
 297                         else if (getuserbynumber(&usbuf, what_user) == 0) {
 298                                 /* We fetched a valid user record */
 299                         }
 300
 301                         else {
 302                                 /* No user with that number! */
 303                                 return(0);
 304                         }
 305
 306                         /* Delete the user's old vCard.  This would probably
 307                          * get taken care of by the replication check, but we
 308                          * want to make sure there is absolutely only one
 309                          * vCard in the user's config room at all times.
 310                          */
 311                         CtdlDeleteMessages(CC->room.QRname,
 312                                         0L, "text/x-vcard");
 313
 314                         /* Set the Extended-ID to a standardized one so the
 315                          * replication always works correctly
 316                          */
 317                         if (msg->cm_fields['E'] != NULL)
 318                                 phree(msg->cm_fields['E']);
 319
 320                         if (msg->cm_fields['A'] != NULL)
 321                                 phree(msg->cm_fields['A']);
 322
 323                         msg->cm_fields['A'] = strdoop(usbuf.fullname);
 324
 325                         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
 326                                 msg->cm_fields['A'], NODENAME);
 327                         msg->cm_fields['E'] = strdoop(buf);
 328
 329                         /* Now allow the save to complete. */
 330                         return(0);
 331                 }
 332
 333                 ptr = strchr((char *)ptr, '\n');
 334                 if (ptr != NULL) ++ptr;
 335         }
 336
 337         return(0);
 338 }
 339
 340
 341
 342 /*
 343  * This handler detects whether the user is attempting to save a new
 344  * vCard as part of his/her personal configuration, and handles the replace
 345  * function accordingly (copy the vCard from the config room to the global
 346  * address book).
 347  */
 348 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 349         char *ptr;
 350         int linelen;
 351         long I;
 352         struct vCard *v;
 353
 354         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 355
 356         /* If this isn't the configuration room, or if this isn't a MIME
 357          * message, don't bother.
 358          */
 359         if (msg->cm_fields['O'] == NULL) return(0);
 360         if (strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) return(0);
 361         if (msg->cm_format_type != 4) return(0);
 362
 363         ptr = msg->cm_fields['M'];
 364         if (ptr == NULL) return(0);
 365         while (ptr != NULL) {
 366
 367                 linelen = strcspn(ptr, "\n");
 368                 if (linelen == 0) return(0);    /* end of headers */
 369
 370                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 371                         /* Bingo!  The user is uploading a new vCard, so
 372                          * copy it to the Global Address Book room.
 373                          */
 374
 375                         I = atol(msg->cm_fields['I']);
 376                         if (I < 0L) return(0);
 377
 378                         /* Put it in the Global Address Book room... */
 379                         CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I,
 380                                 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
 381
 382                         /* ...and also in the directory database. */
 383                         vcard_add_to_directory(I, NULL);
 384
 385                         /* Store our Internet return address in memory */
 386                         v = vcard_load(msg->cm_fields['M']);
 387                         vcard_populate_cs_inet_email(v);
 388                         vcard_free(v);
 389
 390                         /* Some sites want an Aide to be notified when a
 391                          * user registers or re-registers...
 392                          */
 393                         set_mm_valid();
 394
 395                         /* ...which also means we need to flag the user */
 396                         lgetuser(&CC->user, CC->curr_user);
 397                         CC->user.flags |= (US_REGIS|US_NEEDVALID);
 398                         lputuser(&CC->user);
 399
 400                         return(0);
 401                 }
 402
 403                 ptr = strchr((char *)ptr, '\n');
 404                 if (ptr != NULL) ++ptr;
 405         }
 406
 407         return(0);
 408 }
 409
 410
 411
 412 /*
 413  * back end function used for callbacks
 414  */
 415 void vcard_gu_backend(long msgnum, void *userdata) {
 416         VC->msgnum = msgnum;
 417 }
 418
 419
 420 /*
 421  * If this user has a vcard on disk, read it into memory, otherwise allocate
 422  * and return an empty vCard.
 423  */
 424 struct vCard *vcard_get_user(struct ctdluser *u) {
 425         char hold_rm[ROOMNAMELEN];
 426         char config_rm[ROOMNAMELEN];
 427         struct CtdlMessage *msg;
 428         struct vCard *v;
 429
 430         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 431         MailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
 432
 433         if (getroom(&CC->room, config_rm) != 0) {
 434                 getroom(&CC->room, hold_rm);
 435                 return vcard_new();
 436         }
 437
 438         /* We want the last (and probably only) vcard in this room */
 439         VC->msgnum = (-1);
 440         CtdlForEachMessage(MSGS_LAST, 1, "text/x-vcard",
 441                 NULL, vcard_gu_backend, NULL);
 442         getroom(&CC->room, hold_rm);    /* return to saved room */
 443
 444         if (VC->msgnum < 0L) return vcard_new();
 445
 446         msg = CtdlFetchMessage(VC->msgnum);
 447         if (msg == NULL) return vcard_new();
 448
 449         v = vcard_load(msg->cm_fields['M']);
 450         CtdlFreeMessage(msg);
 451         return v;
 452 }
 453
 454
 455 /*
 456  * Store this user's vCard in the appropriate place
 457  */
 458 /*
 459  * Write our config to disk
 460  */
 461 void vcard_write_user(struct ctdluser *u, struct vCard *v) {
 462         char temp[PATH_MAX];
 463         FILE *fp;
 464         char *ser;
 465
 466         strcpy(temp, tmpnam(NULL));
 467         ser = vcard_serialize(v);
 468
 469         fp = fopen(temp, "w");
 470         if (fp == NULL) return;
 471         if (ser == NULL) {
 472                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 473         } else {
 474                 fwrite(ser, strlen(ser), 1, fp);
 475                 phree(ser);
 476         }
 477         fclose(fp);
 478
 479         /* This handy API function does all the work for us.
 480          * NOTE: normally we would want to set that last argument to 1, to
 481          * force the system to delete the user's old vCard.  But it doesn't
 482          * have to, because the vcard_upload_beforesave() hook above
 483          * is going to notice what we're trying to do, and delete the old vCard.
 484          */
 485         CtdlWriteObject(USERCONFIGROOM, /* which room */
 486                         "text/x-vcard", /* MIME type */
 487                         temp,           /* temp file */
 488                         u,              /* which user */
 489                         0,              /* not binary */
 490                         0,              /* don't delete others of this type */
 491                         0);             /* no flags */
 492
 493         unlink(temp);
 494 }
 495
 496
 497
 498 /*
 499  * Old style "enter registration info" command.  This function simply honors
 500  * the REGI protocol command, translates the entered parameters into a vCard,
 501  * and enters the vCard into the user's configuration.
 502  */
 503 void cmd_regi(char *argbuf) {
 504         int a,b,c;
 505         char buf[SIZ];
 506         struct vCard *my_vcard;
 507
 508         char tmpaddr[SIZ];
 509         char tmpcity[SIZ];
 510         char tmpstate[SIZ];
 511         char tmpzip[SIZ];
 512         char tmpaddress[SIZ];
 513         char tmpcountry[SIZ];
 514
 515         if (!(CC->logged_in)) {
 516                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 517                 return;
 518         }
 519
 520         my_vcard = vcard_get_user(&CC->user);
 521         strcpy(tmpaddr, "");
 522         strcpy(tmpcity, "");
 523         strcpy(tmpstate, "");
 524         strcpy(tmpzip, "");
 525         strcpy(tmpcountry, "USA");
 526
 527         cprintf("%d Send registration...\n", SEND_LISTING);
 528         a=0;
 529         while (client_gets(buf), strcmp(buf,"000")) {
 530                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
 531                 if (a==1) strcpy(tmpaddr, buf);
 532                 if (a==2) strcpy(tmpcity, buf);
 533                 if (a==3) strcpy(tmpstate, buf);
 534                 if (a==4) {
 535                         for (c=0; c<strlen(buf); ++c) {
 536                                 if ((buf[c]>='0') && (buf[c]<='9')) {
 537                                         b = strlen(tmpzip);
 538                                         tmpzip[b] = buf[c];
 539                                         tmpzip[b+1] = 0;
 540                                 }
 541                         }
 542                 }
 543                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf, 0);
 544                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
 545                 if (a==7) strcpy(tmpcountry, buf);
 546                 ++a;
 547         }
 548
 549         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
 550                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
 551         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
 552         vcard_write_user(&CC->user, my_vcard);
 553         vcard_free(my_vcard);
 554 }
 555
 556
 557 /*
 558  * Protocol command to fetch registration info for a user
 559  */
 560 void cmd_greg(char *argbuf)
 561 {
 562         struct ctdluser usbuf;
 563         struct vCard *v;
 564         char *s;
 565         char who[SIZ];
 566         char adr[SIZ];
 567         char buf[SIZ];
 568
 569         extract(who, argbuf, 0);
 570
 571         if (!(CC->logged_in)) {
 572                 cprintf("%d Not logged in.\n", ERROR+NOT_LOGGED_IN);
 573                 return;
 574         }
 575
 576         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 577
 578         if ((CC->user.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 579                 cprintf("%d Higher access required.\n",
 580                         ERROR+HIGHER_ACCESS_REQUIRED);
 581                 return;
 582         }
 583
 584         if (getuser(&usbuf, who) != 0) {
 585                 cprintf("%d '%s' not found.\n", ERROR+NO_SUCH_USER, who);
 586                 return;
 587         }
 588
 589         v = vcard_get_user(&usbuf);
 590
 591         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 592         cprintf("%ld\n", usbuf.usernum);
 593         cprintf("%s\n", usbuf.password);
 594         s = vcard_get_prop(v, "n", 0, 0, 0);
 595         cprintf("%s\n", s ? s : " ");   /* name */
 596
 597         s = vcard_get_prop(v, "adr", 0, 0, 0);
 598         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 599
 600         extract_token(buf, adr, 2, ';');
 601         cprintf("%s\n", buf);                           /* street */
 602         extract_token(buf, adr, 3, ';');
 603         cprintf("%s\n", buf);                           /* city */
 604         extract_token(buf, adr, 4, ';');
 605         cprintf("%s\n", buf);                           /* state */
 606         extract_token(buf, adr, 5, ';');
 607         cprintf("%s\n", buf);                           /* zip */
 608
 609         s = vcard_get_prop(v, "tel;home", 0, 0, 0);
 610         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
 611         if (s != NULL) {
 612                 cprintf("%s\n", s);
 613         }
 614         else {
 615                 cprintf(" \n");
 616         }
 617
 618         cprintf("%d\n", usbuf.axlevel);
 619
 620         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
 621         cprintf("%s\n", s ? s : " ");
 622         s = vcard_get_prop(v, "adr", 0, 0, 0);
 623         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 624
 625         extract_token(buf, adr, 6, ';');
 626         cprintf("%s\n", buf);                           /* country */
 627         cprintf("000\n");
 628 }
 629
 630
 631 /*
 632  * When a user is being deleted, we have to remove his/her vCard.
 633  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
 634  * field, and the same Extended ID as the existing card.
 635  */
 636 void vcard_purge(char *username, long usernum) {
 637         struct CtdlMessage *msg;
 638         char buf[SIZ];
 639
 640         msg = (struct CtdlMessage *) mallok(sizeof(struct CtdlMessage));
 641         if (msg == NULL) return;
 642         memset(msg, 0, sizeof(struct CtdlMessage));
 643
 644         msg->cm_magic = CTDLMESSAGE_MAGIC;
 645         msg->cm_anon_type = MES_NORMAL;
 646         msg->cm_format_type = 0;
 647         msg->cm_fields['A'] = strdoop(username);
 648         msg->cm_fields['O'] = strdoop(ADDRESS_BOOK_ROOM);
 649         msg->cm_fields['N'] = strdoop(NODENAME);
 650         msg->cm_fields['M'] = strdoop("Purge this vCard\n");
 651
 652         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
 653                         msg->cm_fields['A'], NODENAME);
 654         msg->cm_fields['E'] = strdoop(buf);
 655
 656         msg->cm_fields['S'] = strdoop("CANCEL");
 657
 658         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM);
 659         CtdlFreeMessage(msg);
 660 }
 661
 662
 663 /*
 664  * Grab vCard directory stuff out of incoming network messages
 665  */
 666 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
 667         char *ptr;
 668         int linelen;
 669
 670         if (msg == NULL) return(0);
 671
 672         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
 673                 return(0);
 674         }
 675
 676         if (msg->cm_format_type != 4) return(0);
 677
 678         ptr = msg->cm_fields['M'];
 679         if (ptr == NULL) return(0);
 680         while (ptr != NULL) {
 681
 682                 linelen = strcspn(ptr, "\n");
 683                 if (linelen == 0) return(0);    /* end of headers */
 684
 685                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 686                          /* It's a vCard.  Add it to the directory. */
 687                         vcard_extract_internet_addresses(msg,
 688                                                         CtdlDirectoryAddUser);
 689                         return(0);
 690                 }
 691
 692                 ptr = strchr((char *)ptr, '\n');
 693                 if (ptr != NULL) ++ptr;
 694         }
 695
 696         return(0);
 697 }
 698
 699
 700
 701 /*
 702  * When a vCard is being removed from the Global Address Book room, remove it
 703  * from the directory as well.
 704  */
 705 void vcard_delete_remove(char *room, long msgnum) {
 706         struct CtdlMessage *msg;
 707         char *ptr;
 708         int linelen;
 709
 710         if (msgnum <= 0L) return;
 711
 712         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
 713                 return;
 714         }
 715
 716         msg = CtdlFetchMessage(msgnum);
 717         if (msg == NULL) return;
 718
 719         ptr = msg->cm_fields['M'];
 720         if (ptr == NULL) goto EOH;
 721         while (ptr != NULL) {
 722                 linelen = strcspn(ptr, "\n");
 723                 if (linelen == 0) goto EOH;
 724
 725                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 726                         /* Bingo!  A vCard is being deleted.
 727                         */
 728                         vcard_extract_internet_addresses(msg,
 729                                                         CtdlDirectoryDelUser);
 730                 }
 731                 ptr = strchr((char *)ptr, '\n');
 732                 if (ptr != NULL) ++ptr;
 733         }
 734
 735 EOH:    CtdlFreeMessage(msg);
 736 }
 737
 738
 739
 740 /*
 741  * Query Directory
 742  */
 743 void cmd_qdir(char *argbuf) {
 744         char citadel_addr[SIZ];
 745         char internet_addr[SIZ];
 746
 747         if (CtdlAccessCheck(ac_logged_in)) return;
 748
 749         extract(internet_addr, argbuf, 0);
 750
 751         if (CtdlDirectoryLookup(citadel_addr, internet_addr) != 0) {
 752                 cprintf("%d %s was not found.\n",
 753                         ERROR+NO_SUCH_USER, internet_addr);
 754                 return;
 755         }
 756
 757         cprintf("%d %s\n", CIT_OK, citadel_addr);
 758 }
 759
 760
 761
 762
 763 /*
 764  * Session startup, allocate some per-session data
 765  */
 766 void vcard_session_startup_hook(void) {
 767         CtdlAllocUserData(SYM_VCARD, sizeof(struct vcard_internal_info));
 768 }
 769
 770
 771 /*
 772  * When a user logs in...
 773  */
 774 void vcard_session_login_hook(void) {
 775         struct vCard *v;
 776
 777         v = vcard_get_user(&CC->user);
 778         vcard_populate_cs_inet_email(v);
 779
 780         vcard_free(v);
 781 }
 782
 783
 784
 785 char *serv_vcard_init(void)
 786 {
 787         SYM_VCARD = CtdlGetDynamicSymbol();
 788         CtdlRegisterSessionHook(vcard_session_startup_hook, EVT_START);
 789         CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN);
 790         CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
 791         CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
 792         CtdlRegisterDeleteHook(vcard_delete_remove);
 793         CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
 794         CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
 795         CtdlRegisterProtoHook(cmd_igab, "IGAB",
 796                                         "Initialize Global Address Book");
 797         CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
 798         CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
 799         CtdlRegisterNetprocHook(vcard_extract_from_network);
 800         create_room(ADDRESS_BOOK_ROOM, 3, "", 0, 1, 0);
 801         return "$Id$";
 802 }