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  * 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 #include "sysdep.h"
  20 #include <stdlib.h>
  21 #include <unistd.h>
  22 #include <stdio.h>
  23 #include <fcntl.h>
  24 #include <signal.h>
  25 #include <pwd.h>
  26 #include <errno.h>
  27 #include <ctype.h>
  28 #include <sys/types.h>
  29
  30 #if TIME_WITH_SYS_TIME
  31 # include <sys/time.h>
  32 # include <time.h>
  33 #else
  34 # if HAVE_SYS_TIME_H
  35 #  include <sys/time.h>
  36 # else
  37 #  include <time.h>
  38 # endif
  39 #endif
  40
  41 #include <sys/wait.h>
  42 #include <string.h>
  43 #include <limits.h>
  44 #include "citadel.h"
  45 #include "server.h"
  46 #include "sysdep_decls.h"
  47 #include "citserver.h"
  48 #include "support.h"
  49 #include "config.h"
  50 #include "control.h"
  51 #include "serv_extensions.h"
  52 #include "room_ops.h"
  53 #include "user_ops.h"
  54 #include "policy.h"
  55 #include "database.h"
  56 #include "msgbase.h"
  57 #include "internet_addressing.h"
  58 #include "tools.h"
  59 #include "vcard.h"
  60 #include "serv_ldap.h"
  61 #include "serv_vcard.h"
  62
  63 /*
  64  * set global flag calling for an aide to validate new users
  65  */
  66 void set_mm_valid(void) {
  67         begin_critical_section(S_CONTROL);
  68         get_control();
  69         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
  70         put_control();
  71         end_critical_section(S_CONTROL);
  72 }
  73
  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 = strdup(s);
 104                         striplt(addr);
 105                         if (strlen(addr) > 0) {
 106                                 if (callback != NULL) {
 107                                         callback(addr, citadel_address);
 108                                 }
 109                         }
 110                         free(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  */
 127 void vcard_directory_add_user(char *internet_addr, char *citadel_addr) {
 128         char buf[SIZ];
 129
 130         /* We have to validate that we're not stepping on someone else's
 131          * email address ... but only if we're logged in.  Otherwise it's
 132          * probably just the networker or something.
 133          */
 134         if (CC->logged_in) {
 135                 lprintf(CTDL_DEBUG, "Checking for <%s>...\n", internet_addr);
 136                 if (CtdlDirectoryLookup(buf, internet_addr, sizeof buf) == 0) {
 137                         if (strcasecmp(buf, citadel_addr)) {
 138                                 /* This address belongs to someone else.
 139                                  * Bail out silently without saving.
 140                                  */
 141                                 lprintf(CTDL_DEBUG, "DOOP!\n");
 142                                 return;
 143                         }
 144                 }
 145         }
 146         lprintf(CTDL_INFO, "Adding %s (%s) to directory\n",
 147                         citadel_addr, internet_addr);
 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, 1);
 159         if (msg != NULL) {
 160                 vcard_extract_internet_addresses(msg, vcard_directory_add_user);
 161         }
 162
 163 #ifdef HAVE_LDAP
 164         ctdl_vcard_to_ldap(msg, V2L_WRITE);
 165 #endif
 166
 167         CtdlFreeMessage(msg);
 168 }
 169
 170
 171 /*
 172  * Initialize Global Adress Book
 173  */
 174 void cmd_igab(char *argbuf) {
 175         char hold_rm[ROOMNAMELEN];
 176
 177         if (CtdlAccessCheck(ac_aide)) return;
 178
 179         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 180
 181         if (getroom(&CC->room, ADDRESS_BOOK_ROOM) != 0) {
 182                 getroom(&CC->room, hold_rm);
 183                 cprintf("%d cannot get address book room\n", ERROR + ROOM_NOT_FOUND);
 184                 return;
 185         }
 186
 187         /* Empty the existing database first.
 188          */
 189         CtdlDirectoryInit();
 190
 191         /* We want *all* vCards in this room */
 192         CtdlForEachMessage(MSGS_ALL, 0, NULL, "text/x-vcard",
 193                 NULL, vcard_add_to_directory, NULL);
 194
 195         getroom(&CC->room, hold_rm);    /* return to saved room */
 196         cprintf("%d Directory has been rebuilt.\n", CIT_OK);
 197 }
 198
 199
 200
 201
 202 /*
 203  * See if there is a valid Internet address in a vCard to use for outbound
 204  * Internet messages.  If there is, stick it in the buffer.
 205  */
 206 void extract_primary_inet_email(char *emailaddrbuf, size_t emailaddrbuf_len, struct vCard *v) {
 207         char *s, *addr;
 208         int continue_searching = 1;
 209         int instance = 0;
 210
 211         /* Go through the vCard searching for *all* instances of
 212          * the "email;internet" key
 213          */
 214         do {
 215                 s = vcard_get_prop(v, "email;internet", 0, instance++, 0);
 216                 if (s != NULL) {
 217                         continue_searching = 1;
 218                         addr = strdup(s);
 219                         striplt(addr);
 220                         if (strlen(addr) > 0) {
 221                                 if (IsDirectory(addr)) {
 222                                         continue_searching = 0;
 223                                         safestrncpy(emailaddrbuf, addr,
 224                                                 emailaddrbuf_len);
 225                                 }
 226                         }
 227                         free(addr);
 228                 }
 229                 else {
 230                         continue_searching = 0;
 231                 }
 232         } while(continue_searching);
 233 }
 234
 235
 236
 237 /*
 238  * This handler detects whether the user is attempting to save a new
 239  * vCard as part of his/her personal configuration, and handles the replace
 240  * function accordingly (delete the user's existing vCard in the config room
 241  * and in the global address book).
 242  */
 243 int vcard_upload_beforesave(struct CtdlMessage *msg) {
 244         char *ptr;
 245         char *s;
 246         int linelen;
 247         char buf[SIZ];
 248         struct ctdluser usbuf;
 249         long what_user;
 250         struct vCard *v = NULL;
 251         char *ser = NULL;
 252         int i = 0;
 253         int yes_my_citadel_config = 0;
 254         int yes_any_vcard_room = 0;
 255
 256         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 257
 258         /* Is this some user's "My Citadel Config" room? */
 259         if ( (CC->room.QRflags && QR_MAILBOX)
 260            && (!strcasecmp(&CC->room.QRname[11], USERCONFIGROOM)) ) {
 261                 /* Yes, we want to do this */
 262                 yes_my_citadel_config = 1;
 263
 264 #ifdef VCARD_SAVES_BY_AIDES_ONLY
 265                 /* Prevent non-aides from performing registration changes */
 266                 if (CC->user.axlevel < 6) {
 267                         return(1);
 268                 }
 269 #endif
 270
 271         }
 272
 273         /* Is this a room with an address book in it? */
 274         if (CC->room.QRdefaultview == VIEW_ADDRESSBOOK) {
 275                 yes_any_vcard_room = 1;
 276         }
 277
 278         /* If neither condition exists, don't run this hook. */
 279         if ( (!yes_my_citadel_config) && (!yes_any_vcard_room) ) {
 280                 return(0);
 281         }
 282
 283         /* If this isn't a MIME message, don't bother. */
 284         if (msg->cm_format_type != 4) return(0);
 285
 286         /* Ok, if we got this far, look into the situation further... */
 287
 288         ptr = msg->cm_fields['M'];
 289         if (ptr == NULL) return(0);
 290         while (ptr != NULL) {
 291
 292                 linelen = strcspn(ptr, "\n");
 293                 if (linelen == 0) return(0);    /* end of headers */
 294
 295                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 296
 297
 298                         if (yes_my_citadel_config) {
 299                                 /* Bingo!  The user is uploading a new vCard, so
 300                                  * delete the old one.  First, figure out which user
 301                                  * is being re-registered...
 302                                  */
 303                                 what_user = atol(CC->room.QRname);
 304
 305                                 if (what_user == CC->user.usernum) {
 306                                         /* It's the logged in user.  That was easy. */
 307                                         memcpy(&usbuf, &CC->user,
 308                                                 sizeof(struct ctdluser) );
 309                                 }
 310
 311                                 else if (getuserbynumber(&usbuf, what_user) == 0) {
 312                                         /* We fetched a valid user record */
 313                                 }
 314
 315                                 else {
 316                                         /* No user with that number! */
 317                                         return(0);
 318                                 }
 319
 320                                 /* Delete the user's old vCard.  This would probably
 321                                  * get taken care of by the replication check, but we
 322                                  * want to make sure there is absolutely only one
 323                                  * vCard in the user's config room at all times.
 324                                  */
 325                                 CtdlDeleteMessages(CC->room.QRname,
 326                                                 NULL, 0, "text/x-vcard", 1);
 327
 328                                 /* Make the author of the message the name of the user.
 329                                  */
 330                                 if (msg->cm_fields['A'] != NULL) {
 331                                         free(msg->cm_fields['A']);
 332                                 }
 333                                 msg->cm_fields['A'] = strdup(usbuf.fullname);
 334                         }
 335
 336                         /* Manipulate the vCard data structure */
 337                         v = vcard_load(msg->cm_fields['M']);
 338                         if (v != NULL) {
 339
 340                                 /* Insert or replace RFC2739-compliant free/busy URL */
 341                                 if (yes_my_citadel_config) {
 342                                         sprintf(buf, "http://%s/%s.vfb",
 343                                                 config.c_fqdn,
 344                                                 usbuf.fullname);
 345                                         for (i=0; i<strlen(buf); ++i) {
 346                                                 if (buf[i] == ' ') buf[i] = '_';
 347                                         }
 348                                         vcard_set_prop(v, "FBURL;PREF", buf, 0);
 349                                 }
 350
 351                                 /* If this is an address book room, and the vCard has
 352                                  * no UID, then give it one.
 353                                  */
 354                                 if (yes_any_vcard_room) {
 355                                         s = vcard_get_prop(v, "UID", 0, 0, 0);
 356                                         if (s == NULL) {
 357                                                 generate_uuid(buf);
 358                                                 vcard_set_prop(v, "UID", buf, 0);
 359                                         }
 360                                 }
 361
 362                                 /* Enforce local UID policy if applicable */
 363                                 if (yes_my_citadel_config) {
 364                                         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
 365                                                 msg->cm_fields['A'], NODENAME);
 366                                         vcard_set_prop(v, "UID", buf, 0);
 367                                 }
 368
 369                                 /*
 370                                  * Set the EUID of the message to the UID of the vCard.
 371                                  */
 372                                 if (msg->cm_fields['E'] != NULL) free(msg->cm_fields['E']);
 373                                 s = vcard_get_prop(v, "UID", 0, 0, 0);
 374                                 if (s != NULL) {
 375                                         msg->cm_fields['E'] = strdup(s);
 376                                         if (msg->cm_fields['U'] == NULL) {
 377                                                 msg->cm_fields['U'] = strdup(s);
 378                                         }
 379                                 }
 380
 381                                 /*
 382                                  * Set the Subject to the name in the vCard.
 383                                  */
 384                                 s = vcard_get_prop(v, "FN", 0, 0, 0);
 385                                 if (s == NULL) {
 386                                         s = vcard_get_prop(v, "N", 0, 0, 0);
 387                                 }
 388                                 if (s != NULL) {
 389                                         if (msg->cm_fields['U'] != NULL) {
 390                                                 free(msg->cm_fields['U']);
 391                                         }
 392                                         msg->cm_fields['U'] = strdup(s);
 393                                 }
 394
 395                                 /* Re-serialize it back into the msg body */
 396                                 ser = vcard_serialize(v);
 397                                 if (ser != NULL) {
 398                                         msg->cm_fields['M'] = realloc(
 399                                                 msg->cm_fields['M'],
 400                                                 strlen(ser) + 1024
 401                                         );
 402                                         sprintf(msg->cm_fields['M'],
 403                                                 "Content-type: text/x-vcard"
 404                                                 "\r\n\r\n%s\r\n", ser);
 405                                         free(ser);
 406                                 }
 407                                 vcard_free(v);
 408                         }
 409
 410                         /* Now allow the save to complete. */
 411                         return(0);
 412                 }
 413
 414                 ptr = strchr((char *)ptr, '\n');
 415                 if (ptr != NULL) ++ptr;
 416         }
 417
 418         return(0);
 419 }
 420
 421
 422
 423 /*
 424  * This handler detects whether the user is attempting to save a new
 425  * vCard as part of his/her personal configuration, and handles the replace
 426  * function accordingly (copy the vCard from the config room to the global
 427  * address book).
 428  */
 429 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 430         char *ptr;
 431         int linelen;
 432         long I;
 433         struct vCard *v;
 434
 435         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 436
 437         /* If this isn't the configuration room, or if this isn't a MIME
 438          * message, don't bother.
 439          */
 440         if (msg->cm_fields['O'] == NULL) return(0);
 441         if (strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) return(0);
 442         if (msg->cm_format_type != 4) return(0);
 443
 444         ptr = msg->cm_fields['M'];
 445         if (ptr == NULL) return(0);
 446         while (ptr != NULL) {
 447
 448                 linelen = strcspn(ptr, "\n");
 449                 if (linelen == 0) return(0);    /* end of headers */
 450
 451                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 452                         /* Bingo!  The user is uploading a new vCard, so
 453                          * copy it to the Global Address Book room.
 454                          */
 455
 456                         I = atol(msg->cm_fields['I']);
 457                         if (I < 0L) return(0);
 458
 459                         /* Store our Internet return address in memory */
 460                         v = vcard_load(msg->cm_fields['M']);
 461                         extract_primary_inet_email(CC->cs_inet_email,
 462                                                 sizeof CC->cs_inet_email, v);
 463                         vcard_free(v);
 464
 465                         /* Put it in the Global Address Book room... */
 466                         CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I, 1, msg);
 467
 468                         /* ...and also in the directory database. */
 469                         vcard_add_to_directory(I, NULL);
 470
 471                         /* Some sites want an Aide to be notified when a
 472                          * user registers or re-registers...
 473                          */
 474                         set_mm_valid();
 475
 476                         /* ...which also means we need to flag the user */
 477                         lgetuser(&CC->user, CC->curr_user);
 478                         CC->user.flags |= (US_REGIS|US_NEEDVALID);
 479                         lputuser(&CC->user);
 480
 481                         return(0);
 482                 }
 483
 484                 ptr = strchr((char *)ptr, '\n');
 485                 if (ptr != NULL) ++ptr;
 486         }
 487
 488         return(0);
 489 }
 490
 491
 492
 493 /*
 494  * back end function used for callbacks
 495  */
 496 void vcard_gu_backend(long supplied_msgnum, void *userdata) {
 497         long *msgnum;
 498
 499         msgnum = (long *) userdata;
 500         *msgnum = supplied_msgnum;
 501 }
 502
 503
 504 /*
 505  * If this user has a vcard on disk, read it into memory, otherwise allocate
 506  * and return an empty vCard.
 507  */
 508 struct vCard *vcard_get_user(struct ctdluser *u) {
 509         char hold_rm[ROOMNAMELEN];
 510         char config_rm[ROOMNAMELEN];
 511         struct CtdlMessage *msg;
 512         struct vCard *v;
 513         long VCmsgnum;
 514
 515         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 516         MailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
 517
 518         if (getroom(&CC->room, config_rm) != 0) {
 519                 getroom(&CC->room, hold_rm);
 520                 return vcard_new();
 521         }
 522
 523         /* We want the last (and probably only) vcard in this room */
 524         VCmsgnum = (-1);
 525         CtdlForEachMessage(MSGS_LAST, 1, NULL, "text/x-vcard",
 526                 NULL, vcard_gu_backend, (void *)&VCmsgnum );
 527         getroom(&CC->room, hold_rm);    /* return to saved room */
 528
 529         if (VCmsgnum < 0L) return vcard_new();
 530
 531         msg = CtdlFetchMessage(VCmsgnum, 1);
 532         if (msg == NULL) return vcard_new();
 533
 534         v = vcard_load(msg->cm_fields['M']);
 535         CtdlFreeMessage(msg);
 536         return v;
 537 }
 538
 539
 540 /*
 541  * Store this user's vCard in the appropriate place
 542  */
 543 /*
 544  * Write our config to disk
 545  */
 546 void vcard_write_user(struct ctdluser *u, struct vCard *v) {
 547         char temp[PATH_MAX];
 548         FILE *fp;
 549         char *ser;
 550
 551         CtdlMakeTempFileName(temp, sizeof temp);
 552         ser = vcard_serialize(v);
 553
 554         fp = fopen(temp, "w");
 555         if (fp == NULL) return;
 556         if (ser == NULL) {
 557                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 558         } else {
 559                 fwrite(ser, strlen(ser), 1, fp);
 560                 free(ser);
 561         }
 562         fclose(fp);
 563
 564         /* This handy API function does all the work for us.
 565          * NOTE: normally we would want to set that last argument to 1, to
 566          * force the system to delete the user's old vCard.  But it doesn't
 567          * have to, because the vcard_upload_beforesave() hook above
 568          * is going to notice what we're trying to do, and delete the old vCard.
 569          */
 570         CtdlWriteObject(USERCONFIGROOM, /* which room */
 571                         "text/x-vcard", /* MIME type */
 572                         temp,           /* temp file */
 573                         u,              /* which user */
 574                         0,              /* not binary */
 575                         0,              /* don't delete others of this type */
 576                         0);             /* no flags */
 577
 578         unlink(temp);
 579 }
 580
 581
 582
 583 /*
 584  * Old style "enter registration info" command.  This function simply honors
 585  * the REGI protocol command, translates the entered parameters into a vCard,
 586  * and enters the vCard into the user's configuration.
 587  */
 588 void cmd_regi(char *argbuf) {
 589         int a,b,c;
 590         char buf[SIZ];
 591         struct vCard *my_vcard;
 592
 593         char tmpaddr[SIZ];
 594         char tmpcity[SIZ];
 595         char tmpstate[SIZ];
 596         char tmpzip[SIZ];
 597         char tmpaddress[SIZ];
 598         char tmpcountry[SIZ];
 599
 600         unbuffer_output();
 601
 602         if (!(CC->logged_in)) {
 603                 cprintf("%d Not logged in.\n",ERROR + NOT_LOGGED_IN);
 604                 return;
 605         }
 606
 607         my_vcard = vcard_get_user(&CC->user);
 608         strcpy(tmpaddr, "");
 609         strcpy(tmpcity, "");
 610         strcpy(tmpstate, "");
 611         strcpy(tmpzip, "");
 612         strcpy(tmpcountry, "USA");
 613
 614         cprintf("%d Send registration...\n", SEND_LISTING);
 615         a=0;
 616         while (client_getln(buf, sizeof buf), strcmp(buf,"000")) {
 617                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
 618                 if (a==1) strcpy(tmpaddr, buf);
 619                 if (a==2) strcpy(tmpcity, buf);
 620                 if (a==3) strcpy(tmpstate, buf);
 621                 if (a==4) {
 622                         for (c=0; c<strlen(buf); ++c) {
 623                                 if ((buf[c]>='0') && (buf[c]<='9')) {
 624                                         b = strlen(tmpzip);
 625                                         tmpzip[b] = buf[c];
 626                                         tmpzip[b+1] = 0;
 627                                 }
 628                         }
 629                 }
 630                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf, 0);
 631                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
 632                 if (a==7) strcpy(tmpcountry, buf);
 633                 ++a;
 634         }
 635
 636         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
 637                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
 638         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
 639         vcard_write_user(&CC->user, my_vcard);
 640         vcard_free(my_vcard);
 641 }
 642
 643
 644 /*
 645  * Protocol command to fetch registration info for a user
 646  */
 647 void cmd_greg(char *argbuf)
 648 {
 649         struct ctdluser usbuf;
 650         struct vCard *v;
 651         char *s;
 652         char who[USERNAME_SIZE];
 653         char adr[256];
 654         char buf[256];
 655
 656         extract_token(who, argbuf, 0, '|', sizeof who);
 657
 658         if (!(CC->logged_in)) {
 659                 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
 660                 return;
 661         }
 662
 663         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 664
 665         if ((CC->user.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 666                 cprintf("%d Higher access required.\n",
 667                         ERROR + HIGHER_ACCESS_REQUIRED);
 668                 return;
 669         }
 670
 671         if (getuser(&usbuf, who) != 0) {
 672                 cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, who);
 673                 return;
 674         }
 675
 676         v = vcard_get_user(&usbuf);
 677
 678         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 679         cprintf("%ld\n", usbuf.usernum);
 680         cprintf("%s\n", usbuf.password);
 681         s = vcard_get_prop(v, "n", 0, 0, 0);
 682         cprintf("%s\n", s ? s : " ");   /* name */
 683
 684         s = vcard_get_prop(v, "adr", 0, 0, 0);
 685         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 686
 687         extract_token(buf, adr, 2, ';', sizeof buf);
 688         cprintf("%s\n", buf);                           /* street */
 689         extract_token(buf, adr, 3, ';', sizeof buf);
 690         cprintf("%s\n", buf);                           /* city */
 691         extract_token(buf, adr, 4, ';', sizeof buf);
 692         cprintf("%s\n", buf);                           /* state */
 693         extract_token(buf, adr, 5, ';', sizeof buf);
 694         cprintf("%s\n", buf);                           /* zip */
 695
 696         s = vcard_get_prop(v, "tel;home", 0, 0, 0);
 697         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
 698         if (s != NULL) {
 699                 cprintf("%s\n", s);
 700         }
 701         else {
 702                 cprintf(" \n");
 703         }
 704
 705         cprintf("%d\n", usbuf.axlevel);
 706
 707         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
 708         cprintf("%s\n", s ? s : " ");
 709         s = vcard_get_prop(v, "adr", 0, 0, 0);
 710         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 711
 712         extract_token(buf, adr, 6, ';', sizeof buf);
 713         cprintf("%s\n", buf);                           /* country */
 714         cprintf("000\n");
 715 }
 716
 717
 718
 719 /*
 720  * When a user is being created, create his/her vCard.
 721  */
 722 void vcard_newuser(struct ctdluser *usbuf) {
 723         char vname[256];
 724         char buf[256];
 725         int i;
 726         struct vCard *v;
 727
 728         vcard_fn_to_n(vname, usbuf->fullname, sizeof vname);
 729         lprintf(CTDL_DEBUG, "Converted <%s> to <%s>\n", usbuf->fullname, vname);
 730
 731         /* Create and save the vCard */
 732         v = vcard_new();
 733         if (v == NULL) return;
 734         sprintf(buf, "%s@%s", usbuf->fullname, config.c_fqdn);
 735         for (i=0; i<strlen(buf); ++i) {
 736                 if (buf[i] == ' ') buf[i] = '_';
 737         }
 738         vcard_add_prop(v, "fn", usbuf->fullname);
 739         vcard_add_prop(v, "n", vname);
 740         vcard_add_prop(v, "adr", "adr:;;_;_;_;00000;__");
 741         vcard_add_prop(v, "email;internet", buf);
 742         vcard_write_user(usbuf, v);
 743         vcard_free(v);
 744 }
 745
 746
 747 /*
 748  * When a user is being deleted, we have to remove his/her vCard.
 749  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
 750  * field, and the same Exclusive ID as the existing card.
 751  */
 752 void vcard_purge(struct ctdluser *usbuf) {
 753         struct CtdlMessage *msg;
 754         char buf[SIZ];
 755
 756         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
 757         if (msg == NULL) return;
 758         memset(msg, 0, sizeof(struct CtdlMessage));
 759
 760         msg->cm_magic = CTDLMESSAGE_MAGIC;
 761         msg->cm_anon_type = MES_NORMAL;
 762         msg->cm_format_type = 0;
 763         msg->cm_fields['A'] = strdup(usbuf->fullname);
 764         msg->cm_fields['O'] = strdup(ADDRESS_BOOK_ROOM);
 765         msg->cm_fields['N'] = strdup(NODENAME);
 766         msg->cm_fields['M'] = strdup("Purge this vCard\n");
 767
 768         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
 769                         msg->cm_fields['A'], NODENAME);
 770         msg->cm_fields['E'] = strdup(buf);
 771
 772         msg->cm_fields['S'] = strdup("CANCEL");
 773
 774         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM);
 775         CtdlFreeMessage(msg);
 776 }
 777
 778
 779 /*
 780  * Grab vCard directory stuff out of incoming network messages
 781  */
 782 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
 783         char *ptr;
 784         int linelen;
 785
 786         if (msg == NULL) return(0);
 787
 788         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
 789                 return(0);
 790         }
 791
 792         if (msg->cm_format_type != 4) return(0);
 793
 794         ptr = msg->cm_fields['M'];
 795         if (ptr == NULL) return(0);
 796         while (ptr != NULL) {
 797
 798                 linelen = strcspn(ptr, "\n");
 799                 if (linelen == 0) return(0);    /* end of headers */
 800
 801                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 802                          /* It's a vCard.  Add it to the directory. */
 803                         vcard_extract_internet_addresses(msg,
 804                                                         CtdlDirectoryAddUser);
 805                         return(0);
 806                 }
 807
 808                 ptr = strchr((char *)ptr, '\n');
 809                 if (ptr != NULL) ++ptr;
 810         }
 811
 812         return(0);
 813 }
 814
 815
 816
 817 /*
 818  * When a vCard is being removed from the Global Address Book room, remove it
 819  * from the directory as well.
 820  */
 821 void vcard_delete_remove(char *room, long msgnum) {
 822         struct CtdlMessage *msg;
 823         char *ptr;
 824         int linelen;
 825
 826         if (msgnum <= 0L) return;
 827
 828         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
 829                 return;
 830         }
 831
 832         msg = CtdlFetchMessage(msgnum, 1);
 833         if (msg == NULL) return;
 834
 835         ptr = msg->cm_fields['M'];
 836         if (ptr == NULL) goto EOH;
 837         while (ptr != NULL) {
 838                 linelen = strcspn(ptr, "\n");
 839                 if (linelen == 0) goto EOH;
 840
 841                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 842                         /* Bingo!  A vCard is being deleted.
 843                         */
 844                         vcard_extract_internet_addresses(msg,
 845                                                         CtdlDirectoryDelUser);
 846 #ifdef HAVE_LDAP
 847                         ctdl_vcard_to_ldap(msg, V2L_DELETE);
 848 #endif
 849                 }
 850                 ptr = strchr((char *)ptr, '\n');
 851                 if (ptr != NULL) ++ptr;
 852         }
 853
 854 EOH:    CtdlFreeMessage(msg);
 855 }
 856
 857
 858
 859 /*
 860  * Query Directory
 861  */
 862 void cmd_qdir(char *argbuf) {
 863         char citadel_addr[256];
 864         char internet_addr[256];
 865
 866         if (CtdlAccessCheck(ac_logged_in)) return;
 867
 868         extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
 869
 870         if (CtdlDirectoryLookup(citadel_addr, internet_addr, sizeof citadel_addr) != 0) {
 871                 cprintf("%d %s was not found.\n",
 872                         ERROR + NO_SUCH_USER, internet_addr);
 873                 return;
 874         }
 875
 876         cprintf("%d %s\n", CIT_OK, citadel_addr);
 877 }
 878
 879 /*
 880  * Query Directory, in fact an alias to match postfix tcp auth.
 881  */
 882 void check_get(void) {
 883         char internet_addr[256];
 884
 885         char cmdbuf[SIZ];
 886
 887         time(&CC->lastcmd);
 888         memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
 889         if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
 890                 lprintf(CTDL_CRIT, "Client disconnected: ending session.\n");
 891                 CC->kill_me = 1;
 892                 return;
 893         }
 894         lprintf(CTDL_INFO, ": %s\n", cmdbuf);
 895         while (strlen(cmdbuf) < 3) strcat(cmdbuf, " ");
 896
 897         if (strcasecmp(cmdbuf, "GET "));
 898         {
 899                 struct recptypes *rcpt;
 900                 char *argbuf = &cmdbuf[4];
 901
 902                 extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
 903                 rcpt = validate_recipients(internet_addr);
 904                 if ((rcpt != NULL)&&
 905                         (
 906                          (*rcpt->recp_local != '\0')||
 907                          (*rcpt->recp_room != '\0')||
 908                          (*rcpt->recp_ignet != '\0')))
 909                 {
 910
 911                         cprintf("200 OK %s\n", internet_addr);
 912                         lprintf(CTDL_INFO, "sending 200 OK for the room %s\n", rcpt->display_recp);
 913                 }
 914                 else
 915                 {
 916                         cprintf("500 REJECT noone here by that name.\n");
 917
 918                         lprintf(CTDL_INFO, "sending 500 REJECT noone here by that name: %s\n", internet_addr);
 919                 }
 920                 if (rcpt != NULL) free (rcpt);
 921         }
 922 ///     CC->kill_me = 1;
 923 }
 924
 925 void check_get_greeting(void) {
 926 /* dummy function, we have no greeting in this verry simple protocol. */
 927 }
 928
 929
 930 /*
 931  * We don't know if the Contacts room exists so we just create it at login
 932  */
 933 void vcard_create_room(void)
 934 {
 935         struct ctdlroom qr;
 936         struct visit vbuf;
 937
 938         /* Create the calendar room if it doesn't already exist */
 939         create_room(USERCONTACTSROOM, 4, "", 0, 1, 0, VIEW_ADDRESSBOOK);
 940
 941         /* Set expiration policy to manual; otherwise objects will be lost! */
 942         if (lgetroom(&qr, USERCONTACTSROOM)) {
 943                 lprintf(CTDL_ERR, "Couldn't get the user CONTACTS room!\n");
 944                 return;
 945         }
 946         qr.QRep.expire_mode = EXPIRE_MANUAL;
 947         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
 948         lputroom(&qr);
 949
 950         /* Set the view to a calendar view */
 951         CtdlGetRelationship(&vbuf, &CC->user, &qr);
 952         vbuf.v_view = 2;        /* 2 = address book view */
 953         CtdlSetRelationship(&vbuf, &CC->user, &qr);
 954
 955         return;
 956 }
 957
 958
 959
 960
 961 /*
 962  * When a user logs in...
 963  */
 964 void vcard_session_login_hook(void) {
 965         struct vCard *v;
 966
 967         v = vcard_get_user(&CC->user);
 968         extract_primary_inet_email(CC->cs_inet_email,
 969                                 sizeof CC->cs_inet_email, v);
 970         vcard_free(v);
 971
 972         vcard_create_room();
 973 }
 974
 975
 976 /*
 977  * Turn an arbitrary RFC822 address into a struct vCard for possible
 978  * inclusion into an address book.
 979  */
 980 struct vCard *vcard_new_from_rfc822_addr(char *addr) {
 981         struct vCard *v;
 982         char user[256], node[256], name[256], email[256], n[256], uid[256];
 983         int i;
 984
 985         v = vcard_new();
 986         if (v == NULL) return(NULL);
 987
 988         process_rfc822_addr(addr, user, node, name);
 989         vcard_set_prop(v, "fn", name, 0);
 990
 991         vcard_fn_to_n(n, name, sizeof n);
 992         vcard_set_prop(v, "n", n, 0);
 993
 994         snprintf(email, sizeof email, "%s@%s", user, node);
 995         vcard_set_prop(v, "email;internet", email, 0);
 996
 997         snprintf(uid, sizeof uid, "collected: %s %s@%s", name, user, node);
 998         for (i=0; i<strlen(uid); ++i) {
 999                 if (isspace(uid[i])) uid[i] = '_';
1000                 uid[i] = tolower(uid[i]);
1001         }
1002         vcard_set_prop(v, "UID", uid, 0);
1003
1004         return(v);
1005 }
1006
1007
1008
1009 /*
1010  * This is called by store_harvested_addresses() to remove from the
1011  * list any addresses we already have in our address book.
1012  */
1013 void strip_addresses_already_have(long msgnum, void *userdata) {
1014         char *collected_addresses;
1015         struct CtdlMessage *msg;
1016         struct vCard *v;
1017         char *value = NULL;
1018         int i, j;
1019         char addr[256], user[256], node[256], name[256];
1020
1021         collected_addresses = (char *)userdata;
1022
1023         msg = CtdlFetchMessage(msgnum, 1);
1024         if (msg == NULL) return;
1025         v = vcard_load(msg->cm_fields['M']);
1026         CtdlFreeMessage(msg);
1027
1028         i = 0;
1029         while (value = vcard_get_prop(v, "email", 1, i++, 0), value != NULL) {
1030
1031                 for (j=0; j<num_tokens(collected_addresses, ','); ++j) {
1032                         extract_token(addr, collected_addresses, j, ',', sizeof addr);
1033
1034                         /* Remove the address if we already have it! */
1035                         process_rfc822_addr(addr, user, node, name);
1036                         snprintf(addr, sizeof addr, "%s@%s", user, node);
1037                         if (!strcasecmp(value, addr)) {
1038                                 remove_token(collected_addresses, j, ',');
1039                         }
1040                 }
1041
1042         }
1043
1044         vcard_free(v);
1045 }
1046
1047
1048
1049 /*
1050  * Back end function for store_harvested_addresses()
1051  */
1052 void store_this_ha(struct addresses_to_be_filed *aptr) {
1053         struct CtdlMessage *vmsg = NULL;
1054         long vmsgnum = (-1L);
1055         char *ser = NULL;
1056         struct vCard *v = NULL;
1057         char recipient[256];
1058         int i;
1059
1060         /* First remove any addresses we already have in the address book */
1061         usergoto(aptr->roomname, 0, 0, NULL, NULL);
1062         CtdlForEachMessage(MSGS_ALL, 0, NULL, "text/x-vcard", NULL,
1063                 strip_addresses_already_have, aptr->collected_addresses);
1064
1065         if (strlen(aptr->collected_addresses) > 0)
1066            for (i=0; i<num_tokens(aptr->collected_addresses, ','); ++i) {
1067
1068                 /* Make a vCard out of each address */
1069                 extract_token(recipient, aptr->collected_addresses, i, ',', sizeof recipient);
1070                 striplt(recipient);
1071                 v = vcard_new_from_rfc822_addr(recipient);
1072                 if (v != NULL) {
1073                         vmsg = malloc(sizeof(struct CtdlMessage));
1074                         memset(vmsg, 0, sizeof(struct CtdlMessage));
1075                         vmsg->cm_magic = CTDLMESSAGE_MAGIC;
1076                         vmsg->cm_anon_type = MES_NORMAL;
1077                         vmsg->cm_format_type = FMT_RFC822;
1078                         vmsg->cm_fields['A'] = strdup("Citadel");
1079                         vmsg->cm_fields['E'] =  strdup(vcard_get_prop(v, "UID", 0, 0, 0));
1080                         ser = vcard_serialize(v);
1081                         if (ser != NULL) {
1082                                 vmsg->cm_fields['M'] = malloc(strlen(ser) + 1024);
1083                                 sprintf(vmsg->cm_fields['M'],
1084                                         "Content-type: text/x-vcard"
1085                                         "\r\n\r\n%s\r\n", ser);
1086                                 free(ser);
1087                         }
1088                         vcard_free(v);
1089
1090                         lprintf(CTDL_DEBUG, "Adding contact: %s\n", recipient);
1091                         vmsgnum = CtdlSubmitMsg(vmsg, NULL, aptr->roomname);
1092                         CtdlFreeMessage(vmsg);
1093                 }
1094         }
1095
1096         free(aptr->roomname);
1097         free(aptr->collected_addresses);
1098         free(aptr);
1099 }
1100
1101
1102 /*
1103  * When a user sends a message, we may harvest one or more email addresses
1104  * from the recipient list to be added to the user's address book.  But we
1105  * want to do this asynchronously so it doesn't keep the user waiting.
1106  */
1107 void store_harvested_addresses(void) {
1108
1109         struct addresses_to_be_filed *aptr = NULL;
1110
1111         if (atbf == NULL) return;
1112
1113         begin_critical_section(S_ATBF);
1114         while (atbf != NULL) {
1115                 aptr = atbf;
1116                 atbf = atbf->next;
1117                 end_critical_section(S_ATBF);
1118                 store_this_ha(aptr);
1119                 begin_critical_section(S_ATBF);
1120         }
1121         end_critical_section(S_ATBF);
1122 }
1123
1124
1125 /*
1126  * Function to output vCard data as plain text.  Nobody uses MSG0 anymore, so
1127  * really this is just so we expose the vCard data to the full text indexer.
1128  */
1129 void vcard_fixed_output(char *ptr, int len) {
1130         char *serialized_vcard;
1131         struct vCard *v;
1132         char *key, *value;
1133         int i = 0;
1134
1135         serialized_vcard = malloc(len + 1);
1136         safestrncpy(serialized_vcard, ptr, len+1);
1137         v = vcard_load(serialized_vcard);
1138         free(serialized_vcard);
1139
1140         i = 0;
1141         while (key = vcard_get_prop(v, "", 0, i, 1), key != NULL) {
1142                 value = vcard_get_prop(v, "", 0, i++, 0);
1143                 cprintf("%s\n", value);
1144         }
1145
1146         vcard_free(v);
1147 }
1148
1149
1150
1151 char *serv_vcard_init(void)
1152 {
1153         struct ctdlroom qr;
1154         char filename[256];
1155         FILE *fp;
1156
1157         CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN);
1158         CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
1159         CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
1160         CtdlRegisterDeleteHook(vcard_delete_remove);
1161         CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
1162         CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
1163         CtdlRegisterProtoHook(cmd_igab, "IGAB",
1164                                         "Initialize Global Address Book");
1165         CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
1166         CtdlRegisterUserHook(vcard_newuser, EVT_NEWUSER);
1167         CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
1168         CtdlRegisterNetprocHook(vcard_extract_from_network);
1169         CtdlRegisterSessionHook(store_harvested_addresses, EVT_TIMER);
1170         CtdlRegisterFixedOutputHook("text/x-vcard", vcard_fixed_output);
1171
1172         /* Create the Global ADdress Book room if necessary */
1173         create_room(ADDRESS_BOOK_ROOM, 3, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1174
1175         /* Set expiration policy to manual; otherwise objects will be lost! */
1176         if (!lgetroom(&qr, ADDRESS_BOOK_ROOM)) {
1177                 qr.QRep.expire_mode = EXPIRE_MANUAL;
1178                 qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1179                 lputroom(&qr);
1180
1181                 /*
1182                  * Also make sure it has a netconfig file, so the networker runs
1183                  * on this room even if we don't share it with any other nodes.
1184                  * This allows the CANCEL messages (i.e. "Purge this vCard") to be
1185                  * purged.
1186                  */
1187                 assoc_file_name(filename, sizeof filename, &qr, ctdl_netcfg_dir);
1188                 fp = fopen(filename, "a");
1189                 if (fp != NULL) fclose(fp);
1190                 chown(filename, CTDLUID, (-1));
1191         }
1192
1193         return "$Id$";
1194 }
1195
1196
1197 char *serv_postfix_tcpdict(void)
1198 {
1199         CtdlRegisterServiceHook(config.c_pftcpdict_port,        /* Postfix */
1200                                 NULL,
1201                                 check_get_greeting,
1202                                 check_get,
1203                                 NULL);
1204         return "$Id$";
1205 }