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) 1999-2007 / 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  * See if there is a name / screen name / friendly name  in a vCard to use for outbound
 239  * Internet messages.  If there is, stick it in the buffer.
 240  */
 241 void extract_friendly_name(char *namebuf, size_t namebuf_len, struct vCard *v)
 242 {
 243         char *s;
 244
 245         s = vcard_get_prop(v, "fn", 0, 0, 0);
 246         if (s == NULL) {
 247                 s = vcard_get_prop(v, "n", 0, 0, 0);
 248         }
 249
 250         if (s != NULL) {
 251                 safestrncpy(namebuf, s, namebuf_len);
 252         }
 253 }
 254
 255
 256
 257 /*
 258  * This handler detects whether the user is attempting to save a new
 259  * vCard as part of his/her personal configuration, and handles the replace
 260  * function accordingly (delete the user's existing vCard in the config room
 261  * and in the global address book).
 262  */
 263 int vcard_upload_beforesave(struct CtdlMessage *msg) {
 264         char *ptr;
 265         char *s;
 266         int linelen;
 267         char buf[SIZ];
 268         struct ctdluser usbuf;
 269         long what_user;
 270         struct vCard *v = NULL;
 271         char *ser = NULL;
 272         int i = 0;
 273         int yes_my_citadel_config = 0;
 274         int yes_any_vcard_room = 0;
 275
 276         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 277
 278         /* Is this some user's "My Citadel Config" room? */
 279         if ( (CC->room.QRflags && QR_MAILBOX)
 280            && (!strcasecmp(&CC->room.QRname[11], USERCONFIGROOM)) ) {
 281                 /* Yes, we want to do this */
 282                 yes_my_citadel_config = 1;
 283
 284 #ifdef VCARD_SAVES_BY_AIDES_ONLY
 285                 /* Prevent non-aides from performing registration changes */
 286                 if (CC->user.axlevel < 6) {
 287                         return(1);
 288                 }
 289 #endif
 290
 291         }
 292
 293         /* Is this a room with an address book in it? */
 294         if (CC->room.QRdefaultview == VIEW_ADDRESSBOOK) {
 295                 yes_any_vcard_room = 1;
 296         }
 297
 298         /* If neither condition exists, don't run this hook. */
 299         if ( (!yes_my_citadel_config) && (!yes_any_vcard_room) ) {
 300                 return(0);
 301         }
 302
 303         /* If this isn't a MIME message, don't bother. */
 304         if (msg->cm_format_type != 4) return(0);
 305
 306         /* Ok, if we got this far, look into the situation further... */
 307
 308         ptr = msg->cm_fields['M'];
 309         if (ptr == NULL) return(0);
 310         while (ptr != NULL) {
 311
 312                 linelen = strcspn(ptr, "\n");
 313                 if (linelen == 0) return(0);    /* end of headers */
 314
 315                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 316
 317
 318                         if (yes_my_citadel_config) {
 319                                 /* Bingo!  The user is uploading a new vCard, so
 320                                  * delete the old one.  First, figure out which user
 321                                  * is being re-registered...
 322                                  */
 323                                 what_user = atol(CC->room.QRname);
 324
 325                                 if (what_user == CC->user.usernum) {
 326                                         /* It's the logged in user.  That was easy. */
 327                                         memcpy(&usbuf, &CC->user,
 328                                                 sizeof(struct ctdluser) );
 329                                 }
 330
 331                                 else if (getuserbynumber(&usbuf, what_user) == 0) {
 332                                         /* We fetched a valid user record */
 333                                 }
 334
 335                                 else {
 336                                         /* No user with that number! */
 337                                         return(0);
 338                                 }
 339
 340                                 /* Delete the user's old vCard.  This would probably
 341                                  * get taken care of by the replication check, but we
 342                                  * want to make sure there is absolutely only one
 343                                  * vCard in the user's config room at all times.
 344                                  */
 345                                 CtdlDeleteMessages(CC->room.QRname, NULL, 0, "text/x-vcard");
 346
 347                                 /* Make the author of the message the name of the user.
 348                                  */
 349                                 if (msg->cm_fields['A'] != NULL) {
 350                                         free(msg->cm_fields['A']);
 351                                 }
 352                                 msg->cm_fields['A'] = strdup(usbuf.fullname);
 353                         }
 354
 355                         /* Manipulate the vCard data structure */
 356                         v = vcard_load(msg->cm_fields['M']);
 357                         if (v != NULL) {
 358
 359                                 /* Insert or replace RFC2739-compliant free/busy URL */
 360                                 if (yes_my_citadel_config) {
 361                                         sprintf(buf, "http://%s/%s.vfb",
 362                                                 config.c_fqdn,
 363                                                 usbuf.fullname);
 364                                         for (i=0; i<strlen(buf); ++i) {
 365                                                 if (buf[i] == ' ') buf[i] = '_';
 366                                         }
 367                                         vcard_set_prop(v, "FBURL;PREF", buf, 0);
 368                                 }
 369
 370                                 /* If this is an address book room, and the vCard has
 371                                  * no UID, then give it one.
 372                                  */
 373                                 if (yes_any_vcard_room) {
 374                                         s = vcard_get_prop(v, "UID", 0, 0, 0);
 375                                         if (s == NULL) {
 376                                                 generate_uuid(buf);
 377                                                 vcard_set_prop(v, "UID", buf, 0);
 378                                         }
 379                                 }
 380
 381                                 /* Enforce local UID policy if applicable */
 382                                 if (yes_my_citadel_config) {
 383                                         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
 384                                                 msg->cm_fields['A'], NODENAME);
 385                                         vcard_set_prop(v, "UID", buf, 0);
 386                                 }
 387
 388                                 /*
 389                                  * Set the EUID of the message to the UID of the vCard.
 390                                  */
 391                                 if (msg->cm_fields['E'] != NULL) free(msg->cm_fields['E']);
 392                                 s = vcard_get_prop(v, "UID", 0, 0, 0);
 393                                 if (s != NULL) {
 394                                         msg->cm_fields['E'] = strdup(s);
 395                                         if (msg->cm_fields['U'] == NULL) {
 396                                                 msg->cm_fields['U'] = strdup(s);
 397                                         }
 398                                 }
 399
 400                                 /*
 401                                  * Set the Subject to the name in the vCard.
 402                                  */
 403                                 s = vcard_get_prop(v, "FN", 0, 0, 0);
 404                                 if (s == NULL) {
 405                                         s = vcard_get_prop(v, "N", 0, 0, 0);
 406                                 }
 407                                 if (s != NULL) {
 408                                         if (msg->cm_fields['U'] != NULL) {
 409                                                 free(msg->cm_fields['U']);
 410                                         }
 411                                         msg->cm_fields['U'] = strdup(s);
 412                                 }
 413
 414                                 /* Re-serialize it back into the msg body */
 415                                 ser = vcard_serialize(v);
 416                                 if (ser != NULL) {
 417                                         msg->cm_fields['M'] = realloc(
 418                                                 msg->cm_fields['M'],
 419                                                 strlen(ser) + 1024
 420                                         );
 421                                         sprintf(msg->cm_fields['M'],
 422                                                 "Content-type: text/x-vcard"
 423                                                 "\r\n\r\n%s\r\n", ser);
 424                                         free(ser);
 425                                 }
 426                                 vcard_free(v);
 427                         }
 428
 429                         /* Now allow the save to complete. */
 430                         return(0);
 431                 }
 432
 433                 ptr = strchr((char *)ptr, '\n');
 434                 if (ptr != NULL) ++ptr;
 435         }
 436
 437         return(0);
 438 }
 439
 440
 441
 442 /*
 443  * This handler detects whether the user is attempting to save a new
 444  * vCard as part of his/her personal configuration, and handles the replace
 445  * function accordingly (copy the vCard from the config room to the global
 446  * address book).
 447  */
 448 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 449         char *ptr;
 450         int linelen;
 451         long I;
 452         struct vCard *v;
 453
 454         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 455
 456         /* If this isn't the configuration room, or if this isn't a MIME
 457          * message, don't bother.
 458          */
 459         if (msg->cm_fields['O'] == NULL) return(0);
 460         if (strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) return(0);
 461         if (msg->cm_format_type != 4) return(0);
 462
 463         ptr = msg->cm_fields['M'];
 464         if (ptr == NULL) return(0);
 465         while (ptr != NULL) {
 466
 467                 linelen = strcspn(ptr, "\n");
 468                 if (linelen == 0) return(0);    /* end of headers */
 469
 470                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 471                         /* Bingo!  The user is uploading a new vCard, so
 472                          * copy it to the Global Address Book room.
 473                          */
 474
 475                         I = atol(msg->cm_fields['I']);
 476                         if (I < 0L) return(0);
 477
 478                         /* Store our Internet return address in memory */
 479                         v = vcard_load(msg->cm_fields['M']);
 480                         extract_primary_inet_email(CC->cs_inet_email, sizeof CC->cs_inet_email, v);
 481                         extract_friendly_name(CC->cs_inet_fn, sizeof CC->cs_inet_fn, v);
 482                         vcard_free(v);
 483
 484                         /* Put it in the Global Address Book room... */
 485                         CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I, 1, msg);
 486
 487                         /* ...and also in the directory database. */
 488                         vcard_add_to_directory(I, NULL);
 489
 490                         /* Some sites want an Aide to be notified when a
 491                          * user registers or re-registers...
 492                          */
 493                         set_mm_valid();
 494
 495                         /* ...which also means we need to flag the user */
 496                         lgetuser(&CC->user, CC->curr_user);
 497                         CC->user.flags |= (US_REGIS|US_NEEDVALID);
 498                         lputuser(&CC->user);
 499
 500                         return(0);
 501                 }
 502
 503                 ptr = strchr((char *)ptr, '\n');
 504                 if (ptr != NULL) ++ptr;
 505         }
 506
 507         return(0);
 508 }
 509
 510
 511
 512 /*
 513  * back end function used for callbacks
 514  */
 515 void vcard_gu_backend(long supplied_msgnum, void *userdata) {
 516         long *msgnum;
 517
 518         msgnum = (long *) userdata;
 519         *msgnum = supplied_msgnum;
 520 }
 521
 522
 523 /*
 524  * If this user has a vcard on disk, read it into memory, otherwise allocate
 525  * and return an empty vCard.
 526  */
 527 struct vCard *vcard_get_user(struct ctdluser *u) {
 528         char hold_rm[ROOMNAMELEN];
 529         char config_rm[ROOMNAMELEN];
 530         struct CtdlMessage *msg = NULL;
 531         struct vCard *v;
 532         long VCmsgnum;
 533
 534         strcpy(hold_rm, CC->room.QRname);       /* save current room */
 535         MailboxName(config_rm, sizeof config_rm, u, USERCONFIGROOM);
 536
 537         if (getroom(&CC->room, config_rm) != 0) {
 538                 getroom(&CC->room, hold_rm);
 539                 return vcard_new();
 540         }
 541
 542         /* We want the last (and probably only) vcard in this room */
 543         VCmsgnum = (-1);
 544         CtdlForEachMessage(MSGS_LAST, 1, NULL, "text/x-vcard",
 545                 NULL, vcard_gu_backend, (void *)&VCmsgnum );
 546         getroom(&CC->room, hold_rm);    /* return to saved room */
 547
 548         if (VCmsgnum < 0L) return vcard_new();
 549
 550         msg = CtdlFetchMessage(VCmsgnum, 1);
 551         if (msg == NULL) return vcard_new();
 552
 553         v = vcard_load(msg->cm_fields['M']);
 554         CtdlFreeMessage(msg);
 555         return v;
 556 }
 557
 558
 559 /*
 560  * Store this user's vCard in the appropriate place
 561  */
 562 /*
 563  * Write our config to disk
 564  */
 565 void vcard_write_user(struct ctdluser *u, struct vCard *v) {
 566         char temp[PATH_MAX];
 567         FILE *fp;
 568         char *ser;
 569
 570         CtdlMakeTempFileName(temp, sizeof temp);
 571         ser = vcard_serialize(v);
 572
 573         fp = fopen(temp, "w");
 574         if (fp == NULL) return;
 575         if (ser == NULL) {
 576                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 577         } else {
 578                 fwrite(ser, strlen(ser), 1, fp);
 579                 free(ser);
 580         }
 581         fclose(fp);
 582
 583         /* This handy API function does all the work for us.
 584          * NOTE: normally we would want to set that last argument to 1, to
 585          * force the system to delete the user's old vCard.  But it doesn't
 586          * have to, because the vcard_upload_beforesave() hook above
 587          * is going to notice what we're trying to do, and delete the old vCard.
 588          */
 589         CtdlWriteObject(USERCONFIGROOM, /* which room */
 590                         "text/x-vcard", /* MIME type */
 591                         temp,           /* temp file */
 592                         u,              /* which user */
 593                         0,              /* not binary */
 594                         0,              /* don't delete others of this type */
 595                         0);             /* no flags */
 596
 597         unlink(temp);
 598 }
 599
 600
 601
 602 /*
 603  * Old style "enter registration info" command.  This function simply honors
 604  * the REGI protocol command, translates the entered parameters into a vCard,
 605  * and enters the vCard into the user's configuration.
 606  */
 607 void cmd_regi(char *argbuf) {
 608         int a,b,c;
 609         char buf[SIZ];
 610         struct vCard *my_vcard;
 611
 612         char tmpaddr[SIZ];
 613         char tmpcity[SIZ];
 614         char tmpstate[SIZ];
 615         char tmpzip[SIZ];
 616         char tmpaddress[SIZ];
 617         char tmpcountry[SIZ];
 618
 619         unbuffer_output();
 620
 621         if (!(CC->logged_in)) {
 622                 cprintf("%d Not logged in.\n",ERROR + NOT_LOGGED_IN);
 623                 return;
 624         }
 625
 626         my_vcard = vcard_get_user(&CC->user);
 627         strcpy(tmpaddr, "");
 628         strcpy(tmpcity, "");
 629         strcpy(tmpstate, "");
 630         strcpy(tmpzip, "");
 631         strcpy(tmpcountry, "USA");
 632
 633         cprintf("%d Send registration...\n", SEND_LISTING);
 634         a=0;
 635         while (client_getln(buf, sizeof buf), strcmp(buf,"000")) {
 636                 if (a==0) vcard_set_prop(my_vcard, "n", buf, 0);
 637                 if (a==1) strcpy(tmpaddr, buf);
 638                 if (a==2) strcpy(tmpcity, buf);
 639                 if (a==3) strcpy(tmpstate, buf);
 640                 if (a==4) {
 641                         for (c=0; c<strlen(buf); ++c) {
 642                                 if ((buf[c]>='0') && (buf[c]<='9')) {
 643                                         b = strlen(tmpzip);
 644                                         tmpzip[b] = buf[c];
 645                                         tmpzip[b+1] = 0;
 646                                 }
 647                         }
 648                 }
 649                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf, 0);
 650                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf, 0);
 651                 if (a==7) strcpy(tmpcountry, buf);
 652                 ++a;
 653         }
 654
 655         snprintf(tmpaddress, sizeof tmpaddress, ";;%s;%s;%s;%s;%s",
 656                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
 657         vcard_set_prop(my_vcard, "adr", tmpaddress, 0);
 658         vcard_write_user(&CC->user, my_vcard);
 659         vcard_free(my_vcard);
 660 }
 661
 662
 663 /*
 664  * Protocol command to fetch registration info for a user
 665  */
 666 void cmd_greg(char *argbuf)
 667 {
 668         struct ctdluser usbuf;
 669         struct vCard *v;
 670         char *s;
 671         char who[USERNAME_SIZE];
 672         char adr[256];
 673         char buf[256];
 674
 675         extract_token(who, argbuf, 0, '|', sizeof who);
 676
 677         if (!(CC->logged_in)) {
 678                 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
 679                 return;
 680         }
 681
 682         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 683
 684         if ((CC->user.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 685                 cprintf("%d Higher access required.\n",
 686                         ERROR + HIGHER_ACCESS_REQUIRED);
 687                 return;
 688         }
 689
 690         if (getuser(&usbuf, who) != 0) {
 691                 cprintf("%d '%s' not found.\n", ERROR + NO_SUCH_USER, who);
 692                 return;
 693         }
 694
 695         v = vcard_get_user(&usbuf);
 696
 697         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 698         cprintf("%ld\n", usbuf.usernum);
 699         cprintf("%s\n", usbuf.password);
 700         s = vcard_get_prop(v, "n", 0, 0, 0);
 701         cprintf("%s\n", s ? s : " ");   /* name */
 702
 703         s = vcard_get_prop(v, "adr", 0, 0, 0);
 704         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 705
 706         extract_token(buf, adr, 2, ';', sizeof buf);
 707         cprintf("%s\n", buf);                           /* street */
 708         extract_token(buf, adr, 3, ';', sizeof buf);
 709         cprintf("%s\n", buf);                           /* city */
 710         extract_token(buf, adr, 4, ';', sizeof buf);
 711         cprintf("%s\n", buf);                           /* state */
 712         extract_token(buf, adr, 5, ';', sizeof buf);
 713         cprintf("%s\n", buf);                           /* zip */
 714
 715         s = vcard_get_prop(v, "tel;home", 0, 0, 0);
 716         if (s == NULL) s = vcard_get_prop(v, "tel", 1, 0, 0);
 717         if (s != NULL) {
 718                 cprintf("%s\n", s);
 719         }
 720         else {
 721                 cprintf(" \n");
 722         }
 723
 724         cprintf("%d\n", usbuf.axlevel);
 725
 726         s = vcard_get_prop(v, "email;internet", 0, 0, 0);
 727         cprintf("%s\n", s ? s : " ");
 728         s = vcard_get_prop(v, "adr", 0, 0, 0);
 729         snprintf(adr, sizeof adr, "%s", s ? s : " ");/* address... */
 730
 731         extract_token(buf, adr, 6, ';', sizeof buf);
 732         cprintf("%s\n", buf);                           /* country */
 733         cprintf("000\n");
 734 }
 735
 736
 737
 738 /*
 739  * When a user is being created, create his/her vCard.
 740  */
 741 void vcard_newuser(struct ctdluser *usbuf) {
 742         char vname[256];
 743         char buf[256];
 744         int i;
 745         struct vCard *v;
 746
 747         vcard_fn_to_n(vname, usbuf->fullname, sizeof vname);
 748         lprintf(CTDL_DEBUG, "Converted <%s> to <%s>\n", usbuf->fullname, vname);
 749
 750         /* Create and save the vCard */
 751         v = vcard_new();
 752         if (v == NULL) return;
 753         sprintf(buf, "%s@%s", usbuf->fullname, config.c_fqdn);
 754         for (i=0; i<strlen(buf); ++i) {
 755                 if (buf[i] == ' ') buf[i] = '_';
 756         }
 757         vcard_add_prop(v, "fn", usbuf->fullname);
 758         vcard_add_prop(v, "n", vname);
 759         vcard_add_prop(v, "adr", "adr:;;_;_;_;00000;__");
 760         vcard_add_prop(v, "email;internet", buf);
 761         vcard_write_user(usbuf, v);
 762         vcard_free(v);
 763 }
 764
 765
 766 /*
 767  * When a user is being deleted, we have to remove his/her vCard.
 768  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
 769  * field, and the same Exclusive ID as the existing card.
 770  */
 771 void vcard_purge(struct ctdluser *usbuf) {
 772         struct CtdlMessage *msg;
 773         char buf[SIZ];
 774
 775         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
 776         if (msg == NULL) return;
 777         memset(msg, 0, sizeof(struct CtdlMessage));
 778
 779         msg->cm_magic = CTDLMESSAGE_MAGIC;
 780         msg->cm_anon_type = MES_NORMAL;
 781         msg->cm_format_type = 0;
 782         msg->cm_fields['A'] = strdup(usbuf->fullname);
 783         msg->cm_fields['O'] = strdup(ADDRESS_BOOK_ROOM);
 784         msg->cm_fields['N'] = strdup(NODENAME);
 785         msg->cm_fields['M'] = strdup("Purge this vCard\n");
 786
 787         snprintf(buf, sizeof buf, VCARD_EXT_FORMAT,
 788                         msg->cm_fields['A'], NODENAME);
 789         msg->cm_fields['E'] = strdup(buf);
 790
 791         msg->cm_fields['S'] = strdup("CANCEL");
 792
 793         CtdlSubmitMsg(msg, NULL, ADDRESS_BOOK_ROOM);
 794         CtdlFreeMessage(msg);
 795 }
 796
 797
 798 /*
 799  * Grab vCard directory stuff out of incoming network messages
 800  */
 801 int vcard_extract_from_network(struct CtdlMessage *msg, char *target_room) {
 802         char *ptr;
 803         int linelen;
 804
 805         if (msg == NULL) return(0);
 806
 807         if (strcasecmp(target_room, ADDRESS_BOOK_ROOM)) {
 808                 return(0);
 809         }
 810
 811         if (msg->cm_format_type != 4) return(0);
 812
 813         ptr = msg->cm_fields['M'];
 814         if (ptr == NULL) return(0);
 815         while (ptr != NULL) {
 816
 817                 linelen = strcspn(ptr, "\n");
 818                 if (linelen == 0) return(0);    /* end of headers */
 819
 820                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 821                          /* It's a vCard.  Add it to the directory. */
 822                         vcard_extract_internet_addresses(msg,
 823                                                         CtdlDirectoryAddUser);
 824                         return(0);
 825                 }
 826
 827                 ptr = strchr((char *)ptr, '\n');
 828                 if (ptr != NULL) ++ptr;
 829         }
 830
 831         return(0);
 832 }
 833
 834
 835
 836 /*
 837  * When a vCard is being removed from the Global Address Book room, remove it
 838  * from the directory as well.
 839  */
 840 void vcard_delete_remove(char *room, long msgnum) {
 841         struct CtdlMessage *msg;
 842         char *ptr;
 843         int linelen;
 844
 845         if (msgnum <= 0L) return;
 846
 847         if (strcasecmp(room, ADDRESS_BOOK_ROOM)) {
 848                 return;
 849         }
 850
 851         msg = CtdlFetchMessage(msgnum, 1);
 852         if (msg == NULL) return;
 853
 854         ptr = msg->cm_fields['M'];
 855         if (ptr == NULL) goto EOH;
 856         while (ptr != NULL) {
 857                 linelen = strcspn(ptr, "\n");
 858                 if (linelen == 0) goto EOH;
 859
 860                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 861                         /* Bingo!  A vCard is being deleted.
 862                         */
 863                         vcard_extract_internet_addresses(msg,
 864                                                         CtdlDirectoryDelUser);
 865 #ifdef HAVE_LDAP
 866                         ctdl_vcard_to_ldap(msg, V2L_DELETE);
 867 #endif
 868                 }
 869                 ptr = strchr((char *)ptr, '\n');
 870                 if (ptr != NULL) ++ptr;
 871         }
 872
 873 EOH:    CtdlFreeMessage(msg);
 874 }
 875
 876
 877
 878 /*
 879  * Get Valid Screen Names
 880  */
 881 void cmd_gvsn(char *argbuf)
 882 {
 883         if (CtdlAccessCheck(ac_logged_in)) return;
 884
 885         cprintf("%d valid screen names:\n", LISTING_FOLLOWS);
 886         cprintf("%s\n", CC->user.fullname);
 887         if ( (strlen(CC->cs_inet_fn) > 0) && (strcasecmp(CC->user.fullname, CC->cs_inet_fn)) ) {
 888                 cprintf("%s\n", CC->cs_inet_fn);
 889         }
 890         cprintf("000\n");
 891 }
 892
 893
 894 /*
 895  * Query Directory
 896  */
 897 void cmd_qdir(char *argbuf) {
 898         char citadel_addr[256];
 899         char internet_addr[256];
 900
 901         if (CtdlAccessCheck(ac_logged_in)) return;
 902
 903         extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
 904
 905         if (CtdlDirectoryLookup(citadel_addr, internet_addr, sizeof citadel_addr) != 0) {
 906                 cprintf("%d %s was not found.\n",
 907                         ERROR + NO_SUCH_USER, internet_addr);
 908                 return;
 909         }
 910
 911         cprintf("%d %s\n", CIT_OK, citadel_addr);
 912 }
 913
 914 /*
 915  * Query Directory, in fact an alias to match postfix tcp auth.
 916  */
 917 void check_get(void) {
 918         char internet_addr[256];
 919
 920         char cmdbuf[SIZ];
 921
 922         time(&CC->lastcmd);
 923         memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
 924         if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
 925                 lprintf(CTDL_CRIT, "Client disconnected: ending session.\n");
 926                 CC->kill_me = 1;
 927                 return;
 928         }
 929         lprintf(CTDL_INFO, ": %s\n", cmdbuf);
 930         while (strlen(cmdbuf) < 3) strcat(cmdbuf, " ");
 931
 932         if (strcasecmp(cmdbuf, "GET "));
 933         {
 934                 struct recptypes *rcpt;
 935                 char *argbuf = &cmdbuf[4];
 936
 937                 extract_token(internet_addr, argbuf, 0, '|', sizeof internet_addr);
 938                 rcpt = validate_recipients(internet_addr);
 939                 if ((rcpt != NULL)&&
 940                         (
 941                          (*rcpt->recp_local != '\0')||
 942                          (*rcpt->recp_room != '\0')||
 943                          (*rcpt->recp_ignet != '\0')))
 944                 {
 945
 946                         cprintf("200 OK %s\n", internet_addr);
 947                         lprintf(CTDL_INFO, "sending 200 OK for the room %s\n", rcpt->display_recp);
 948                 }
 949                 else
 950                 {
 951                         cprintf("500 REJECT noone here by that name.\n");
 952
 953                         lprintf(CTDL_INFO, "sending 500 REJECT noone here by that name: %s\n", internet_addr);
 954                 }
 955                 if (rcpt != NULL) free (rcpt);
 956         }
 957 ///     CC->kill_me = 1;
 958 }
 959
 960 void check_get_greeting(void) {
 961 /* dummy function, we have no greeting in this verry simple protocol. */
 962 }
 963
 964
 965 /*
 966  * We don't know if the Contacts room exists so we just create it at login
 967  */
 968 void vcard_create_room(void)
 969 {
 970         struct ctdlroom qr;
 971         struct visit vbuf;
 972
 973         /* Create the calendar room if it doesn't already exist */
 974         create_room(USERCONTACTSROOM, 4, "", 0, 1, 0, VIEW_ADDRESSBOOK);
 975
 976         /* Set expiration policy to manual; otherwise objects will be lost! */
 977         if (lgetroom(&qr, USERCONTACTSROOM)) {
 978                 lprintf(CTDL_ERR, "Couldn't get the user CONTACTS room!\n");
 979                 return;
 980         }
 981         qr.QRep.expire_mode = EXPIRE_MANUAL;
 982         qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
 983         lputroom(&qr);
 984
 985         /* Set the view to a calendar view */
 986         CtdlGetRelationship(&vbuf, &CC->user, &qr);
 987         vbuf.v_view = 2;        /* 2 = address book view */
 988         CtdlSetRelationship(&vbuf, &CC->user, &qr);
 989
 990         return;
 991 }
 992
 993
 994
 995
 996 /*
 997  * When a user logs in...
 998  */
 999 void vcard_session_login_hook(void) {
1000         struct vCard *v = NULL;
1001
1002         v = vcard_get_user(&CC->user);
1003         extract_primary_inet_email(CC->cs_inet_email, sizeof CC->cs_inet_email, v);
1004         extract_friendly_name(CC->cs_inet_fn, sizeof CC->cs_inet_fn, v);
1005         vcard_free(v);
1006
1007         vcard_create_room();
1008 }
1009
1010
1011 /*
1012  * Turn an arbitrary RFC822 address into a struct vCard for possible
1013  * inclusion into an address book.
1014  */
1015 struct vCard *vcard_new_from_rfc822_addr(char *addr) {
1016         struct vCard *v;
1017         char user[256], node[256], name[256], email[256], n[256], uid[256];
1018         int i;
1019
1020         v = vcard_new();
1021         if (v == NULL) return(NULL);
1022
1023         process_rfc822_addr(addr, user, node, name);
1024         vcard_set_prop(v, "fn", name, 0);
1025
1026         vcard_fn_to_n(n, name, sizeof n);
1027         vcard_set_prop(v, "n", n, 0);
1028
1029         snprintf(email, sizeof email, "%s@%s", user, node);
1030         vcard_set_prop(v, "email;internet", email, 0);
1031
1032         snprintf(uid, sizeof uid, "collected: %s %s@%s", name, user, node);
1033         for (i=0; i<strlen(uid); ++i) {
1034                 if (isspace(uid[i])) uid[i] = '_';
1035                 uid[i] = tolower(uid[i]);
1036         }
1037         vcard_set_prop(v, "UID", uid, 0);
1038
1039         return(v);
1040 }
1041
1042
1043
1044 /*
1045  * This is called by store_harvested_addresses() to remove from the
1046  * list any addresses we already have in our address book.
1047  */
1048 void strip_addresses_already_have(long msgnum, void *userdata) {
1049         char *collected_addresses;
1050         struct CtdlMessage *msg = NULL;
1051         struct vCard *v;
1052         char *value = NULL;
1053         int i, j;
1054         char addr[256], user[256], node[256], name[256];
1055
1056         collected_addresses = (char *)userdata;
1057
1058         msg = CtdlFetchMessage(msgnum, 1);
1059         if (msg == NULL) return;
1060         v = vcard_load(msg->cm_fields['M']);
1061         CtdlFreeMessage(msg);
1062
1063         i = 0;
1064         while (value = vcard_get_prop(v, "email", 1, i++, 0), value != NULL) {
1065
1066                 for (j=0; j<num_tokens(collected_addresses, ','); ++j) {
1067                         extract_token(addr, collected_addresses, j, ',', sizeof addr);
1068
1069                         /* Remove the address if we already have it! */
1070                         process_rfc822_addr(addr, user, node, name);
1071                         snprintf(addr, sizeof addr, "%s@%s", user, node);
1072                         if (!strcasecmp(value, addr)) {
1073                                 remove_token(collected_addresses, j, ',');
1074                         }
1075                 }
1076
1077         }
1078
1079         vcard_free(v);
1080 }
1081
1082
1083
1084 /*
1085  * Back end function for store_harvested_addresses()
1086  */
1087 void store_this_ha(struct addresses_to_be_filed *aptr) {
1088         struct CtdlMessage *vmsg = NULL;
1089         long vmsgnum = (-1L);
1090         char *ser = NULL;
1091         struct vCard *v = NULL;
1092         char recipient[256];
1093         int i;
1094
1095         /* First remove any addresses we already have in the address book */
1096         usergoto(aptr->roomname, 0, 0, NULL, NULL);
1097         CtdlForEachMessage(MSGS_ALL, 0, NULL, "text/x-vcard", NULL,
1098                 strip_addresses_already_have, aptr->collected_addresses);
1099
1100         if (strlen(aptr->collected_addresses) > 0)
1101            for (i=0; i<num_tokens(aptr->collected_addresses, ','); ++i) {
1102
1103                 /* Make a vCard out of each address */
1104                 extract_token(recipient, aptr->collected_addresses, i, ',', sizeof recipient);
1105                 striplt(recipient);
1106                 v = vcard_new_from_rfc822_addr(recipient);
1107                 if (v != NULL) {
1108                         vmsg = malloc(sizeof(struct CtdlMessage));
1109                         memset(vmsg, 0, sizeof(struct CtdlMessage));
1110                         vmsg->cm_magic = CTDLMESSAGE_MAGIC;
1111                         vmsg->cm_anon_type = MES_NORMAL;
1112                         vmsg->cm_format_type = FMT_RFC822;
1113                         vmsg->cm_fields['A'] = strdup("Citadel");
1114                         vmsg->cm_fields['E'] =  strdup(vcard_get_prop(v, "UID", 0, 0, 0));
1115                         ser = vcard_serialize(v);
1116                         if (ser != NULL) {
1117                                 vmsg->cm_fields['M'] = malloc(strlen(ser) + 1024);
1118                                 sprintf(vmsg->cm_fields['M'],
1119                                         "Content-type: text/x-vcard"
1120                                         "\r\n\r\n%s\r\n", ser);
1121                                 free(ser);
1122                         }
1123                         vcard_free(v);
1124
1125                         lprintf(CTDL_DEBUG, "Adding contact: %s\n", recipient);
1126                         vmsgnum = CtdlSubmitMsg(vmsg, NULL, aptr->roomname);
1127                         CtdlFreeMessage(vmsg);
1128                 }
1129         }
1130
1131         free(aptr->roomname);
1132         free(aptr->collected_addresses);
1133         free(aptr);
1134 }
1135
1136
1137 /*
1138  * When a user sends a message, we may harvest one or more email addresses
1139  * from the recipient list to be added to the user's address book.  But we
1140  * want to do this asynchronously so it doesn't keep the user waiting.
1141  */
1142 void store_harvested_addresses(void) {
1143
1144         struct addresses_to_be_filed *aptr = NULL;
1145
1146         if (atbf == NULL) return;
1147
1148         begin_critical_section(S_ATBF);
1149         while (atbf != NULL) {
1150                 aptr = atbf;
1151                 atbf = atbf->next;
1152                 end_critical_section(S_ATBF);
1153                 store_this_ha(aptr);
1154                 begin_critical_section(S_ATBF);
1155         }
1156         end_critical_section(S_ATBF);
1157 }
1158
1159
1160 /*
1161  * Function to output vCard data as plain text.  Nobody uses MSG0 anymore, so
1162  * really this is just so we expose the vCard data to the full text indexer.
1163  */
1164 void vcard_fixed_output(char *ptr, int len) {
1165         char *serialized_vcard;
1166         struct vCard *v;
1167         char *key, *value;
1168         int i = 0;
1169
1170         serialized_vcard = malloc(len + 1);
1171         safestrncpy(serialized_vcard, ptr, len+1);
1172         v = vcard_load(serialized_vcard);
1173         free(serialized_vcard);
1174
1175         i = 0;
1176         while (key = vcard_get_prop(v, "", 0, i, 1), key != NULL) {
1177                 value = vcard_get_prop(v, "", 0, i++, 0);
1178                 cprintf("%s\n", value);
1179         }
1180
1181         vcard_free(v);
1182 }
1183
1184
1185 char *serv_postfix_tcpdict(void)
1186 {
1187         CtdlRegisterServiceHook(config.c_pftcpdict_port,        /* Postfix */
1188                                 NULL,
1189                                 check_get_greeting,
1190                                 check_get,
1191                                 NULL);
1192         return "$Id$";
1193 }
1194
1195
1196
1197 char *serv_vcard_init(void)
1198 {
1199         struct ctdlroom qr;
1200         char filename[256];
1201         FILE *fp;
1202
1203         CtdlRegisterSessionHook(vcard_session_login_hook, EVT_LOGIN);
1204         CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
1205         CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
1206         CtdlRegisterDeleteHook(vcard_delete_remove);
1207         CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
1208         CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
1209         CtdlRegisterProtoHook(cmd_igab, "IGAB",
1210                                         "Initialize Global Address Book");
1211         CtdlRegisterProtoHook(cmd_qdir, "QDIR", "Query Directory");
1212         CtdlRegisterProtoHook(cmd_gvsn, "GVSN", "Get Valid Screen Names");
1213         CtdlRegisterUserHook(vcard_newuser, EVT_NEWUSER);
1214         CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
1215         CtdlRegisterNetprocHook(vcard_extract_from_network);
1216         CtdlRegisterSessionHook(store_harvested_addresses, EVT_TIMER);
1217         CtdlRegisterFixedOutputHook("text/x-vcard", vcard_fixed_output);
1218
1219         /* Create the Global ADdress Book room if necessary */
1220         create_room(ADDRESS_BOOK_ROOM, 3, "", 0, 1, 0, VIEW_ADDRESSBOOK);
1221
1222         /* Set expiration policy to manual; otherwise objects will be lost! */
1223         if (!lgetroom(&qr, ADDRESS_BOOK_ROOM)) {
1224                 qr.QRep.expire_mode = EXPIRE_MANUAL;
1225                 qr.QRdefaultview = VIEW_ADDRESSBOOK;    /* 2 = address book view */
1226                 lputroom(&qr);
1227
1228                 /*
1229                  * Also make sure it has a netconfig file, so the networker runs
1230                  * on this room even if we don't share it with any other nodes.
1231                  * This allows the CANCEL messages (i.e. "Purge this vCard") to be
1232                  * purged.
1233                  */
1234                 assoc_file_name(filename, sizeof filename, &qr, ctdl_netcfg_dir);
1235                 fp = fopen(filename, "a");
1236                 if (fp != NULL) fclose(fp);
1237                 chown(filename, CTDLUID, (-1));
1238         }
1239
1240         return "$Id$";
1241 }