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 "dynloader.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  * Extract Internet e-mail addresses from a message containing a vCard, and
  78  * perform a callback for any found.
  79  */
  80 void vcard_extract_internet_addresses(struct CtdlMessage *msg,
  81                                 void (*callback)(char *, char *) ) {
  82         struct vCard *v;
  83         char *s;
  84         char *addr;
  85         char citadel_address[SIZ];
  86         int instance = 0;
  87         int found_something = 0;
  88
  89         if (msg->cm_fields['A'] == NULL) return;
  90         if (msg->cm_fields['N'] == NULL) return;
  91         snprintf(citadel_address, sizeof citadel_address, "%s @ %s",
  92                 msg->cm_fields['A'], msg->cm_fields['N']);
  93
  94         v = vcard_load(msg->cm_fields['M']);
  95         if (v == NULL) return;
  96
  97         /* Go through the vCard searching for *all* instances of
  98          * the "email;internet" key
  99          */
 100         do {
 101                 s = vcard_get_prop(v, "email;internet", 0, instance++, 0);
 102                 if (s != NULL) {
 103                         addr = strdoop(s);
 104                         striplt(addr);
 105                         if (strlen(addr) > 0) {
 106                                 if (callback != NULL) {
 107                                         callback(addr, citadel_address);
 108                                 }
 109                         }
 110                         phree(addr);
 111                         found_something = 1;
 112                 }
 113                 else {
 114                         found_something = 0;
 115                 }
 116         } while(found_something);
 117
 118         vcard_free(v);
 119 }
 120
 121
 122
 123 /*
 124  * Callback for vcard_add_to_directory()
 125  * (Lotsa ugly nested callbacks.  Oh well.)
 126  * This little shim function makes sure we're not
 127  */
 128 void vcard_directory_add_user(char *internet_addr, char *citadel_addr) {
 129         char buf[SIZ];
 130
 131         /* We have to validate that we're not stepping on someone else's
 132          * email address ... but only if we're logged in.  Otherwise it's
 133          * probably just the networker or something.
 134          */
 135         if (CC->logged_in) {
 136                 lprintf(9, "Checking for <%s>...\n", internet_addr);
 137                 if (CtdlDirectoryLookup(buf, internet_addr) == 0) {
 138                         if (strcasecmp(buf, citadel_addr)) {
 139                                 /* This address belongs to someone else.
 140                                  * Bail out silently without saving.
 141                                  */
 142                                 lprintf(9, "DOOP!\n");
 143                                 return;
 144                         }
 145                 }
 146         }
 147         lprintf(9, "ADDING!\n");
 148         CtdlDirectoryAddUser(internet_addr, citadel_addr);
 149 }
 150
 151
 152 /*
 153  * Back end function for cmd_igab()
 154  */
 155 void vcard_add_to_directory(long msgnum, void *data) {
 156         struct CtdlMessage *msg;
 157
 158         msg = CtdlFetchMessage(msgnum);
 159         if (msg != NULL) {
 160                 vcard_extract_internet_addresses(msg, vcard_directory_add_user);
 161         }
 162
 163         CtdlFreeMessage(msg);
 164 }
 165
 166
 167 /*
 168  * Initialize Global Adress Book
 169  */
 170 void cmd_igab(char *argbuf) {
 171         char hold_rm[ROOMNAMELEN];
 172
 173         if (CtdlAccessCheck(ac_aide)) return;
 174
 175         strcpy(hold_rm, CC->quickroom.QRname);  /* save current room */
 176
 177         if (getroom(&CC->quickroom, ADDRESS_BOOK_ROOM) != 0) {
 178                 getroom(&CC->quickroom, hold_rm);
 179                 cprintf("%d cannot get address book room\n", ERROR);
 180                 return;
 181         }
 182
 183         /* Empty the existing database first.
 184          */
 185         CtdlDirectoryInit();
 186
 187         /* We want the last (and probably only) vcard in this room */
 188         CtdlForEachMessage(MSGS_ALL, 0, (-127), "text/x-vcard",
 189                 NULL, vcard_add_to_directory, NULL);
 190
 191         getroom(&CC->quickroom, hold_rm);       /* return to saved room */
 192         cprintf("%d Directory has been rebuilt.\n", CIT_OK);
 193 }
 194
 195
 196
 197
 198 /*
 199  * See if there is a valid Internet address in a vCard to use for outbound
 200  * Interet messages.  If there is, stick it in CC->cs_inet_email.
 201  */
 202 void vcard_populate_cs_inet_email(struct vCard *v) {
 203         char *s, *addr;
 204         int continue_searching = 1;
 205         int instance = 0;
 206
 207         /*
 208          * Clear whatever was in there previously.
 209          */
 210         if (CC->cs_inet_email != NULL) {
 211                 phree(CC->cs_inet_email);
 212                 CC->cs_inet_email = NULL;
 213         }
 214
 215         /* Go through the vCard searching for *all* instances of
 216          * the "email;internet" key
 217          */
 218         do {
 219                 s = vcard_get_prop(v, "email;internet", 0, instance++, 0);
 220                 if (s != NULL) {
 221                         continue_searching = 1;
 222                         addr = strdoop(s);
 223                         striplt(addr);
 224                         if (strlen(addr) > 0) {
 225                                 if (IsDirectory(addr)) {
 226                                         continue_searching = 0;
 227                                         CC->cs_inet_email = strdoop(addr);
 228                                 }
 229                         }
 230                         phree(addr);
 231                 }
 232                 else {
 233                         continue_searching = 0;
 234                 }
 235         } while(continue_searching);
 236 }
 237
 238
 239
 240 /*
 241  * This handler detects whether the user is attempting to save a new
 242  * vCard as part of his/her personal configuration, and handles the replace
 243  * function accordingly (delete the user's existing vCard in the config room
 244  * and in the global address book).
 245  */
 246 int vcard_upload_beforesave(struct CtdlMessage *msg) {
 247         char *ptr;
 248         int linelen;
 249         char buf[SIZ];
 250         struct usersupp usbuf;
 251         long what_user;
 252
 253         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 254
 255         /* If this isn't a "My Citadel Config" room, don't bother. */
 256         if ( (CC->quickroom.QRflags && QR_MAILBOX)
 257            && (!strcasecmp(&CC->quickroom.QRname[11], USERCONFIGROOM)) ) {
 258                 /* Yes, we want to do this */
 259         }
 260         else {
 261                 return(0);
 262         }
 263
 264         /* If this isn't a MIME message, don't bother. */
 265         if (msg->cm_format_type != 4) return(0);
 266
 267         /* Ok, if we got this far, look into the situation further... */
 268
 269         ptr = msg->cm_fields['M'];
 270         if (ptr == NULL) return(0);
 271         while (ptr != NULL) {
 272
 273                 linelen = strcspn(ptr, "\n");
 274                 if (linelen == 0) return(0);    /* end of headers */
 275
 276                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 277                         /* Bingo!  The user is uploading a new vCard, so
 278                          * delete the old one.  First, figure out which user
 279                          * is being re-registered...
 280                          */
 281                         what_user = atol(CC->quickroom.QRname);
 282
 283                         if (what_user == CC->usersupp.usernum) {
 284                                 /* It's the logged in user.  That was easy. */
 285                                 memcpy(&usbuf, &CC->usersupp,
 286                                         sizeof(struct usersupp) );
 287                         }
 288
 289                         else if (getuserbynumber(&usbuf, what_user) == 0) {
 290                                 /* We fetched a valid user record */
 291                         }
 292
 293                         else {
 294                                 /* No user with that number! */
 295                                 return(0);
 296                         }
 297
 298                         /* Delete the user's old vCard.  This would probably
 299                          * get taken care of by the replication check, but we
 300                          * want to make sure there is absolutely only one
 301                          * vCard in the user's config room at all times.
 302                          */
 303                         CtdlDeleteMessages(CC->quickroom.QRname,
 304                                         0L, "text/x-vcard");
 305
 306                         /* Set the Extended-ID to a standardized one so the
 307                          * replication always works correctly
 308                          */
 309                         if (msg->cm_fields['E'] != NULL)
 310                                 phree(msg->cm_fields['E']);
 311
 312                         if (msg->cm_fields['A'] != NULL)
 313                                 phree(msg->cm_fields['A']);
 314
 315                         msg->cm_fields['A'] = strdoop(usbuf.fullname);
 316
 317                         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
 318                                 msg->cm_fields['A'], NODENAME);
 319                         msg->cm_fields['E'] = strdoop(buf);
 320
 321                         /* Now allow the save to complete. */
 322                         return(0);
 323                 }
 324
 325                 ptr = strchr((char *)ptr, '\n');
 326                 if (ptr != NULL) ++ptr;
 327         }
 328
 329         return(0);
 330 }
 331
 332
 333
 334 /*
 335  * This handler detects whether the user is attempting to save a new
 336  * vCard as part of his/her personal configuration, and handles the replace
 337  * function accordingly (copy the vCard from the config room to the global
 338  * address book).
 339  */
 340 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 341         char *ptr;
 342         int linelen;
 343         long I;
 344         struct vCard *v;
 345
 346         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 347
 348         /* If this isn't the configuration room, or if this isn't a MIME
 349          * message, don't bother.
 350          */
 351         if (msg->cm_fields['O'] == NULL) return(0);
 352         if (strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) return(0);
 353         if (msg->cm_format_type != 4) return(0);
 354
 355         ptr = msg->cm_fields['M'];
 356         if (ptr == NULL) return(0);
 357         while (ptr != NULL) {
 358
 359                 linelen = strcspn(ptr, "\n");
 360                 if (linelen == 0) return(0);    /* end of headers */
 361
 362                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 363                         /* Bingo!  The user is uploading a new vCard, so
 364                          * copy it to the Global Address Book room.
 365                          */
 366
 367                         I = atol(msg->cm_fields['I']);
 368                         if (I < 0L) return(0);
 369
 370                         /* Put it in the Global Address Book room... */
 371                         CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I,
 372                                 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
 373
 374                         /* ...and also in the directory database. */
 375                         vcard_add_to_directory(I, NULL);
 376
 377                         /* Store our Internet return address in memory */
 378                         v = vcard_load(msg->cm_fields['M']);
 379                         vcard_populate_cs_inet_email(v);
 380                         vcard_free(v);
 381
 382                         return(0);
 383                 }
 384
 385                 ptr = strchr((char *)ptr, '\n');
 386                 if (ptr != NULL) ++ptr;
 387         }
 388
 389         return(0);
 390 }
 391
 392
 393
 394 /*
 395  * back end function used for callbacks
 396  */
 397 void vcard_gu_backend(long msgnum, void *userdata) {
 398         VC->msgnum = msgnum;
 399 }
 400
 401
 402 /*
 403  * If this user has a vcard on disk, read it into memory, otherwise allocate
 404  * and return an empty vCard.
 405  */
 406 struct vCard *vcard_get_user(struct usersupp *u) {
 407         char hold_rm[ROOMNAMELEN];
 408         char config_rm[ROOMNAMELEN];
 409         struct CtdlMessage *msg;
 410         struct vCard *v;
 411
 412         strcpy(hold_rm, CC->quickroom.QRname);  /* save current room */
 413         MailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
 414
 415         if (getroom(&CC->quickroom, config_rm) != 0) {
 416                 getroom(&CC->quickroom, hold_rm);
 417                 return vcard_new();
 418         }
 419
 420         /* We want the last (and probably only) vcard in this room */
 421         VC->msgnum = (-1);
 422         CtdlForEachMessage(MSGS_LAST, 1, (-127), "text/x-vcard",
 423                 NULL, vcard_gu_backend, NULL);
 424         getroom(&CC->quickroom, hold_rm);       /* return to saved room */
 425
 426         if (VC->msgnum < 0L) return vcard_new();
 427
 428         msg = CtdlFetchMessage(VC->msgnum);
 429         if (msg == NULL) return vcard_new();
 430
 431         v = vcard_load(msg->cm_fields['M']);
 432         CtdlFreeMessage(msg);
 433         return v;
 434 }
 435
 436
 437 /*
 438  * Store this user's vCard in the appropriate place
 439  */
 440 /*
 441  * Write our config to disk
 442  */
 443 void vcard_write_user(struct usersupp *u, struct vCard *v) {
 444         char temp[PATH_MAX];
 445         FILE *fp;
 446         char *ser;
 447
 448         strcpy(temp, tmpnam(NULL));
 449         ser = vcard_serialize(v);
 450
 451         fp = fopen(temp, "w");
 452         if (fp == NULL) return;
 453         if (ser == NULL) {
 454                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 455         } else {
 456                 fwrite(ser, strlen(ser), 1, fp);
 457                 phree(ser);
 458         }
 459         fclose(fp);
 460
 461         /* This handy API function does all the work for us.
 462          * NOTE: normally we would want to set that last argument to 1, to
 463          * force the system to delete the user's old vCard.  But it doesn't
 464          * have to, because the vcard_upload_beforesave() hook above
 465          * is going to notice what we're trying to do, and delete the old vCard.
 466          */
 467         CtdlWriteObject(USERCONFIGROOM, /* which room */
 468                         "text/x-vcard", /* MIME type */
 469                         temp,           /* temp file */
 470                         u,              /* which user */
 471                         0,              /* not binary */
 472                         0,              /* don't delete others of this type */
 473                         0);             /* no flags */
 474
 475         unlink(temp);
 476 }
 477
 478
 479
 480 /*
 481  * Old style "enter registration info" command.  This function simply honors
 482  * the REGI protocol command, translates the entered parameters into a vCard,
 483  * and enters the vCard into the user's configuration.
 484  */
 485 void cmd_regi(char *argbuf) {
 486         int a,b,c;
 487         char buf[SIZ];
 488         struct vCard *my_vcard;
 489
 490         char tmpaddr[SIZ];
 491         char tmpcity[SIZ];
 492         char tmpstate[SIZ];
 493         char tmpzip[SIZ];
 494         char tmpaddress[SIZ];
 495         char tmpcountry[SIZ];
 496
 497         if (!(CC->logged_in)) {
 498                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 499                 return;
 500         }
 501
 502         my_vcard = vcard_get_user(&CC->usersupp);
 503         strcpy(tmpaddr, "");
 504         strcpy(tmpcity, "");
 505         strcpy(tmpstate, "");
 506         strcpy(tmpzip, "");
 507         strcpy(tmpcountry, "USA");
 508
 509         cprintf("%d Send registration...\n", SEND_LISTING);
 510         a=0;
 511         while (client_gets(buf), strcmp(buf,"000")) {
 512                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
 513                 if (a==1) strcpy(tmpaddr, buf);
 514                 if (a==2) strcpy(tmpcity, buf);
 515                 if (a==3) strcpy(tmpstate, buf);
 516                 if (a==4) {
 517                         for (c=0; c<strlen(buf); ++c) {
 518                                 if ((buf[c]>='0') && (buf[c]<='9')) {
 519                                         b = strlen(tmpzip);
 520                                         tmpzip[b] = buf[c];
 521                                         tmpzip[b+1] = 0;
 522                                 }
 523                         }
 524                 }
 525                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf, 0);
 526                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
 527                 if (a==7) strcpy(tmpcountry, buf);
 528                 ++a;
 529         }
 530
 531         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
 532                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
 533         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
 534         vcard_write_user(&CC->usersupp, my_vcard);
 535         vcard_free(my_vcard);
 536
 537         lgetuser(&CC->usersupp, CC->curr_user);
 538         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 539         lputuser(&CC->usersupp);
 540
 541         /* set global flag calling for validation */
 542         begin_critical_section(S_CONTROL);
 543         get_control();
 544         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 545         put_control();
 546         end_critical_section(S_CONTROL);
 547 }
 548
 549
 550
 551 /*
 552  * Protocol command to fetch registration info for a user
 553  */
 554 void cmd_greg(char *argbuf)
 555 {
 556         struct usersupp usbuf;
 557         struct vCard *v;
 558         char *s;
 559         char who[SIZ];
 560         char adr[SIZ];
 561         char buf[SIZ];
 562
 563         extract(who, argbuf, 0);
 564
 565         if (!(CC->logged_in)) {
 566                 cprintf("%d Not logged in.\n", ERROR+NOT_LOGGED_IN);
 567                 return;
 568         }
 569
 570         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 571
 572         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 573                 cprintf("%d Higher access required.\n",
 574                         ERROR+HIGHER_ACCESS_REQUIRED);
 575                 return;
 576         }
 577
 578         if (getuser(&usbuf, who) != 0) {
 579                 cprintf("%d '%s' not found.\n", ERROR+NO_SUCH_USER, who);
 580                 return;
 581         }
 582
 583         v = vcard_get_user(&usbuf);
 584
 585         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 586         cprintf("%ld\n", usbuf.usernum);
 587         cprintf("%s\n", usbuf.password);
 588         s = vcard_get_prop(v, "n", 0, 0, 0);
 589         cprintf("%s\n", s ? s : " ");   /* name */
 590
 591         s = vcard_get_prop(v, "adr", 0, 0, 0);
 592         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 593
 594         extract_token(buf, adr, 2, ';');
 595         cprintf("%s\n", buf);                           /* street */
 596         extract_token(buf, adr, 3, ';');
 597         cprintf("%s\n", buf);                           /* city */
 598         extract_token(buf, adr, 4, ';');
 599         cprintf("%s\n", buf);                           /* state */
 600         extract_token(buf, adr, 5, ';');
 601         cprintf("%s\n", buf);                           /* zip */
 602
 603         s = vcard_get_prop(v, "tel;home", 0, 0, 0);
 604         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
 605         if (s != NULL) {
 606                 cprintf("%s\n", s);
 607         }
 608         else {
 609                 cprintf(" \n");
 610         }
 611
 612         cprintf("%d\n", usbuf.axlevel);
 613
 614         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
 615         cprintf("%s\n", s ? s : " ");
 616         s = vcard_get_prop(v, "adr", 0, 0, 0);
 617         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 618
 619         extract_token(buf, adr, 6, ';');
 620         cprintf("%s\n", buf);                           /* country */
 621         cprintf("000\n");
 622 }
 623
 624
 625 /*
 626  * When a user is being deleted, we have to remove his/her vCard.
 627  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
 628  * field, and the same Extended ID as the existing card.
 629  */
 630 void vcard_purge(char *username, long usernum) {
 631         struct CtdlMessage *msg;
 632         char buf[SIZ];
 633
 634         msg = (struct CtdlMessage *) mallok(sizeof(struct CtdlMessage));
 635         if (msg == NULL) return;
 636         memset(msg, 0, sizeof(struct CtdlMessage));
 637
 638         msg->cm_magic = CTDLMESSAGE_MAGIC;
 639         msg->cm_anon_type = MES_NORMAL;
 640         msg->cm_format_type = 0;
 641         msg->cm_fields['A'] = strdoop(username);
 642         msg->cm_fields['O'] = strdoop(ADDRESS_BOOK_ROOM);
 643         msg->cm_fields['N'] = strdoop(NODENAME);
 644         msg->cm_fields['M'] = strdoop("Purge this vCard\n");
 645
 646         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT, msg->cm_fields['A'], NODENAME);
 647         msg->cm_fields['E'] = strdoop(buf);
 648
 649         msg->cm_fields['S'] = strdoop("CANCEL");
 650
 651         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM);
 652         CtdlFreeMessage(msg);
 653 }
 654
 655
 656 /*
 657  * Grab vCard directory stuff out of incoming network messages
 658  */
 659 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
 660         char *ptr;
 661         int linelen;
 662
 663         if (msg == NULL) return(0);
 664
 665         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
 666                 return(0);
 667         }
 668
 669         if (msg->cm_format_type != 4) return(0);
 670
 671         ptr = msg->cm_fields['M'];
 672         if (ptr == NULL) return(0);
 673         while (ptr != NULL) {
 674
 675                 linelen = strcspn(ptr, "\n");
 676                 if (linelen == 0) return(0);    /* end of headers */
 677
 678                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 679                          /* It's a vCard.  Add it to the directory. */
 680                         vcard_extract_internet_addresses(msg,
 681                                                         CtdlDirectoryAddUser);
 682                         return(0);
 683                 }
 684
 685                 ptr = strchr((char *)ptr, '\n');
 686                 if (ptr != NULL) ++ptr;
 687         }
 688
 689         return(0);
 690 }
 691
 692
 693
 694 /*
 695  * When a vCard is being removed from the Global Address Book room, remove it
 696  * from the directory as well.
 697  */
 698 void vcard_delete_remove(char *room, long msgnum) {
 699         struct CtdlMessage *msg;
 700         char *ptr;
 701         int linelen;
 702
 703         if (msgnum <= 0L) return;
 704
 705         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
 706                 return;
 707         }
 708
 709         msg = CtdlFetchMessage(msgnum);
 710         if (msg == NULL) return;
 711
 712         ptr = msg->cm_fields['M'];
 713         if (ptr == NULL) goto EOH;
 714         while (ptr != NULL) {
 715                 linelen = strcspn(ptr, "\n");
 716                 if (linelen == 0) goto EOH;
 717
 718                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 719                         /* Bingo!  A vCard is being deleted.
 720                         */
 721                         vcard_extract_internet_addresses(msg, CtdlDirectoryDelUser);
 722                 }
 723                 ptr = strchr((char *)ptr, '\n');
 724                 if (ptr != NULL) ++ptr;
 725         }
 726
 727 EOH:    CtdlFreeMessage(msg);
 728 }
 729
 730
 731
 732 /*
 733  * Query Directory
 734  */
 735 void cmd_qdir(char *argbuf) {
 736         char citadel_addr[SIZ];
 737         char internet_addr[SIZ];
 738
 739         if (CtdlAccessCheck(ac_logged_in)) return;
 740
 741         extract(internet_addr, argbuf, 0);
 742
 743         if (CtdlDirectoryLookup(citadel_addr, internet_addr) != 0) {
 744                 cprintf("%d %s was not found.\n",
 745                         ERROR+NO_SUCH_USER, internet_addr);
 746                 return;
 747         }
 748
 749         cprintf("%d %s\n", CIT_OK, citadel_addr);
 750 }
 751
 752
 753
 754
 755 /*
 756  * Session startup, allocate some per-session data
 757  */
 758 void vcard_session_startup_hook(void) {
 759         CtdlAllocUserData(SYM_VCARD, sizeof(struct vcard_internal_info));
 760 }
 761
 762
 763 /*
 764  * When a user logs in...
 765  */
 766 void vcard_session_login_hook(void) {
 767         struct vCard *v;
 768
 769         v = vcard_get_user(&CC->usersupp);
 770         vcard_populate_cs_inet_email(v);
 771
 772         vcard_free(v);
 773 }
 774
 775
 776 /*
 777  * When a user logs out...
 778  */
 779 void vcard_session_logout_hook(void) {
 780         if (CC->cs_inet_email != NULL) {
 781                 phree(CC->cs_inet_email);
 782                 CC->cs_inet_email = NULL;
 783         }
 784 }
 785
 786
 787 char *Dynamic_Module_Init(void)
 788 {
 789         SYM_VCARD = CtdlGetDynamicSymbol();
 790         CtdlRegisterSessionHook(vcard_session_startup_hook, EVT_START);
 791         CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN);
 792         CtdlRegisterSessionHook(vcard_session_logout_hook, EVT_LOGOUT);
 793         CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
 794         CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
 795         CtdlRegisterDeleteHook(vcard_delete_remove);
 796         CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
 797         CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
 798         CtdlRegisterProtoHook(cmd_igab, "IGAB",
 799                                         "Initialize Global Address Book");
 800         CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
 801         CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
 802         CtdlRegisterNetprocHook(vcard_extract_from_network);
 803         create_room(ADDRESS_BOOK_ROOM, 3, "", 0, 1);
 804         return "$Id$";
 805 }