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