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