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  */
   8
   9 #define ADDRESS_BOOK_ROOM       "Global Address Book"
  10
  11 #include "sysdep.h"
  12 #include <stdlib.h>
  13 #include <unistd.h>
  14 #include <stdio.h>
  15 #include <fcntl.h>
  16 #include <signal.h>
  17 #include <pwd.h>
  18 #include <errno.h>
  19 #include <sys/types.h>
  20
  21 #if TIME_WITH_SYS_TIME
  22 # include <sys/time.h>
  23 # include <time.h>
  24 #else
  25 # if HAVE_SYS_TIME_H
  26 #  include <sys/time.h>
  27 # else
  28 #  include <time.h>
  29 # endif
  30 #endif
  31
  32 #include <sys/wait.h>
  33 #include <string.h>
  34 #include <limits.h>
  35 #include "citadel.h"
  36 #include "server.h"
  37 #include "sysdep_decls.h"
  38 #include "citserver.h"
  39 #include "support.h"
  40 #include "config.h"
  41 #include "control.h"
  42 #include "dynloader.h"
  43 #include "room_ops.h"
  44 #include "user_ops.h"
  45 #include "policy.h"
  46 #include "database.h"
  47 #include "msgbase.h"
  48 #include "tools.h"
  49 #include "vcard.h"
  50
  51 struct vcard_internal_info {
  52         long msgnum;
  53 };
  54
  55 /* Message number symbol used internally by these functions */
  56 unsigned long SYM_VCARD;
  57 #define VC ((struct vcard_internal_info *)CtdlGetUserData(SYM_VCARD))
  58
  59
  60 /*
  61  * This handler detects whether the user is attempting to save a new
  62  * vCard as part of his/her personal configuration, and handles the replace
  63  * function accordingly (delete the user's existing vCard in the config room
  64  * and in the global address book).
  65  */
  66 int vcard_upload_beforesave(struct CtdlMessage *msg) {
  67         char *ptr;
  68         int linelen;
  69         char config_rm[ROOMNAMELEN];
  70         char buf[SIZ];
  71
  72
  73         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
  74         TRACE;
  75
  76         /* If this isn't the configuration room, or if this isn't a MIME
  77          * message, don't bother.  (Check for NULL room first, otherwise
  78          * some messages will cause it to crash!!)
  79          */
  80         if (msg->cm_fields['O'] == NULL) return(0);
  81         TRACE;
  82         if (strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) return(0);
  83         TRACE;
  84         if (msg->cm_format_type != 4) return(0);
  85         TRACE;
  86
  87         ptr = msg->cm_fields['M'];
  88         if (ptr == NULL) return(0);
  89         TRACE;
  90         while (ptr != NULL) {
  91
  92                 linelen = strcspn(ptr, "\n");
  93                 if (linelen == 0) return(0);    /* end of headers */
  94
  95                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
  96                         /* Bingo!  The user is uploading a new vCard, so
  97                          * delete the old one.
  98                          */
  99
 100                         /* Delete the user's old vCard.  This would probably
 101                          * get taken care of by the replication check, but we
 102                          * want to make sure there is absolutely only one
 103                          * vCard in the user's config room at all times.
 104                          *
 105                          * FIXME ... this needs to be tweaked to allow an admin
 106                          * to make changes to another user's vCard instead of
 107                          * assuming that it's always the user saving his own.
 108                          */
 109                         TRACE;
 110                         MailboxName(config_rm, &CC->usersupp, USERCONFIGROOM);
 111                         TRACE;
 112                         CtdlDeleteMessages(config_rm, 0L, "text/x-vcard");
 113                         TRACE;
 114
 115                         /* Set the Extended-ID to a standardized one so the
 116                          * replication always works correctly
 117                          */
 118                         if (msg->cm_fields['E'] != NULL)
 119                                 phree(msg->cm_fields['E']);
 120                         TRACE;
 121
 122                         sprintf(buf,
 123                                 "Citadel vCard: personal card for %s at %s",
 124                                 msg->cm_fields['A'], NODENAME);
 125                         msg->cm_fields['E'] = strdoop(buf);
 126                         TRACE;
 127
 128                         /* Now allow the save to complete. */
 129                         TRACE;
 130                         return(0);
 131                 }
 132                 TRACE;
 133
 134                 ptr = strchr((char *)ptr, '\n');
 135                 TRACE;
 136                 if (ptr != NULL) ++ptr;
 137         }
 138         TRACE;
 139
 140         return(0);
 141 }
 142
 143
 144
 145 /*
 146  * This handler detects whether the user is attempting to save a new
 147  * vCard as part of his/her personal configuration, and handles the replace
 148  * function accordingly (copy the vCard from the config room to the global
 149  * address book).
 150  */
 151 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 152         char *ptr;
 153         int linelen;
 154         long I;
 155
 156
 157         if (!CC->logged_in) return(0);  /* Only do this if logged in. */
 158
 159         /* If this isn't the configuration room, or if this isn't a MIME
 160          * message, don't bother.
 161          */
 162         if (msg->cm_fields['O'] == NULL) return(0);
 163         if (strcasecmp(msg->cm_fields['O'], USERCONFIGROOM)) return(0);
 164         if (msg->cm_format_type != 4) return(0);
 165
 166         ptr = msg->cm_fields['M'];
 167         if (ptr == NULL) return(0);
 168         while (ptr != NULL) {
 169
 170                 linelen = strcspn(ptr, "\n");
 171                 if (linelen == 0) return(0);    /* end of headers */
 172
 173                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 174                         /* Bingo!  The user is uploading a new vCard, so
 175                          * copy it to the Global Address Book room.
 176                          */
 177
 178                         TRACE;
 179                         I = atol(msg->cm_fields['I']);
 180                         TRACE;
 181                         if (I < 0L) return(0);
 182
 183                         CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I,
 184                                 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
 185
 186                         return(0);
 187                 }
 188
 189                 ptr = strchr((char *)ptr, '\n');
 190                 if (ptr != NULL) ++ptr;
 191         }
 192
 193         return(0);
 194 }
 195
 196
 197
 198 /*
 199  * back end function used for callbacks
 200  */
 201 void vcard_gu_backend(long msgnum, void *userdata) {
 202         VC->msgnum = msgnum;
 203 }
 204
 205
 206 /*
 207  * If this user has a vcard on disk, read it into memory, otherwise allocate
 208  * and return an empty vCard.
 209  */
 210 struct vCard *vcard_get_user(struct usersupp *u) {
 211         char hold_rm[ROOMNAMELEN];
 212         char config_rm[ROOMNAMELEN];
 213         struct CtdlMessage *msg;
 214         struct vCard *v;
 215
 216         strcpy(hold_rm, CC->quickroom.QRname);  /* save current room */
 217         MailboxName(config_rm, u, USERCONFIGROOM);
 218
 219         if (getroom(&CC->quickroom, config_rm) != 0) {
 220                 getroom(&CC->quickroom, hold_rm);
 221                 return vcard_new();
 222         }
 223
 224         /* We want the last (and probably only) vcard in this room */
 225         VC->msgnum = (-1);
 226         CtdlForEachMessage(MSGS_LAST, 1, (-127), "text/x-vcard",
 227                 NULL, vcard_gu_backend, NULL);
 228         getroom(&CC->quickroom, hold_rm);       /* return to saved room */
 229
 230         if (VC->msgnum < 0L) return vcard_new();
 231
 232         msg = CtdlFetchMessage(VC->msgnum);
 233         if (msg == NULL) return vcard_new();
 234
 235         v = vcard_load(msg->cm_fields['M']);
 236         CtdlFreeMessage(msg);
 237         return v;
 238 }
 239
 240
 241 /*
 242  * Store this user's vCard in the appropriate place
 243  */
 244 /*
 245  * Write our config to disk
 246  */
 247 void vcard_write_user(struct usersupp *u, struct vCard *v) {
 248         char temp[PATH_MAX];
 249         FILE *fp;
 250         char *ser;
 251
 252         strcpy(temp, tmpnam(NULL));
 253         ser = vcard_serialize(v);
 254
 255         fp = fopen(temp, "w");
 256         if (fp == NULL) return;
 257         if (ser == NULL) {
 258                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 259         } else {
 260                 fwrite(ser, strlen(ser), 1, fp);
 261                 phree(ser);
 262         }
 263         fclose(fp);
 264
 265         /* This handy API function does all the work for us.
 266          * NOTE: normally we would want to set that last argument to 1, to
 267          * force the system to delete the user's old vCard.  But it doesn't
 268          * have to, because the vcard_upload_beforesave() hook above
 269          * is going to notice what we're trying to do, and delete the old vCard.
 270          */
 271         CtdlWriteObject(USERCONFIGROOM, /* which room */
 272                         "text/x-vcard", /* MIME type */
 273                         temp,           /* temp file */
 274                         u,              /* which user */
 275                         0,              /* not binary */
 276                         0,              /* don't delete others of this type */
 277                         0);             /* no flags */
 278
 279         unlink(temp);
 280 }
 281
 282
 283
 284 /*
 285  * old style "enter registration info" command
 286  */
 287 void cmd_regi(char *argbuf) {
 288         int a,b,c;
 289         char buf[SIZ];
 290         struct vCard *my_vcard;
 291
 292         char tmpaddr[SIZ];
 293         char tmpcity[SIZ];
 294         char tmpstate[SIZ];
 295         char tmpzip[SIZ];
 296         char tmpaddress[SIZ];
 297         char tmpcountry[SIZ];
 298
 299         if (!(CC->logged_in)) {
 300                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 301                 return;
 302                 }
 303
 304         my_vcard = vcard_get_user(&CC->usersupp);
 305         strcpy(tmpaddr, "");
 306         strcpy(tmpcity, "");
 307         strcpy(tmpstate, "");
 308         strcpy(tmpzip, "");
 309         strcpy(tmpcountry, "USA");
 310
 311         cprintf("%d Send registration...\n", SEND_LISTING);
 312         a=0;
 313         while (client_gets(buf), strcmp(buf,"000")) {
 314                 if (a==0) vcard_set_prop(my_vcard, "n", buf);
 315                 if (a==1) strcpy(tmpaddr,buf);
 316                 if (a==2) strcpy(tmpcity,buf);
 317                 if (a==3) strcpy(tmpstate,buf);
 318                 if (a==4) {
 319                         for (c=0; c<strlen(buf); ++c) {
 320                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 321                                         b=strlen(tmpzip);
 322                                         tmpzip[b]=buf[c];
 323                                         tmpzip[b+1]=0;
 324                                         }
 325                                 }
 326                         }
 327                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf);
 328                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf);
 329                 if (a==7) strcpy(tmpcountry, buf);
 330                 ++a;
 331                 }
 332         sprintf(tmpaddress, ";;%s;%s;%s;%s;%s",
 333                 tmpaddr, tmpcity, tmpstate, tmpzip, tmpcountry);
 334         vcard_set_prop(my_vcard, "adr", tmpaddress);
 335         vcard_write_user(&CC->usersupp, my_vcard);
 336         vcard_free(my_vcard);
 337
 338         lgetuser(&CC->usersupp, CC->curr_user);
 339         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 340         lputuser(&CC->usersupp);
 341
 342         /* set global flag calling for validation */
 343         begin_critical_section(S_CONTROL);
 344         get_control();
 345         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 346         put_control();
 347         end_critical_section(S_CONTROL);
 348         }
 349
 350
 351
 352 /*
 353  * get registration info for a user
 354  */
 355 void cmd_greg(char *argbuf)
 356 {
 357         struct usersupp usbuf;
 358         struct vCard *v;
 359         char *s;
 360         char who[SIZ];
 361         char adr[SIZ];
 362         char buf[SIZ];
 363
 364         extract(who, argbuf, 0);
 365
 366         if (!(CC->logged_in)) {
 367                 cprintf("%d Not logged in.\n", ERROR+NOT_LOGGED_IN);
 368                 return;
 369         }
 370
 371         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 372
 373         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 374                 cprintf("%d Higher access required.\n",
 375                         ERROR+HIGHER_ACCESS_REQUIRED);
 376                 return;
 377         }
 378
 379         if (getuser(&usbuf, who) != 0) {
 380                 cprintf("%d '%s' not found.\n", ERROR+NO_SUCH_USER, who);
 381                 return;
 382         }
 383
 384         v = vcard_get_user(&usbuf);
 385
 386         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 387         cprintf("%ld\n", usbuf.usernum);
 388         cprintf("%s\n", usbuf.password);
 389         s = vcard_get_prop(v, "n", 0);
 390         cprintf("%s\n", s ? s : " ");   /* name */
 391
 392         s = vcard_get_prop(v, "adr", 0);
 393         sprintf(adr, "%s", s ? s : " ");/* address... */
 394
 395         extract_token(buf, adr, 2, ';');
 396         cprintf("%s\n", buf);                           /* street */
 397         extract_token(buf, adr, 3, ';');
 398         cprintf("%s\n", buf);                           /* city */
 399         extract_token(buf, adr, 4, ';');
 400         cprintf("%s\n", buf);                           /* state */
 401         extract_token(buf, adr, 5, ';');
 402         cprintf("%s\n", buf);                           /* zip */
 403
 404         s = vcard_get_prop(v, "tel;home", 0);
 405         if (s == NULL) s = vcard_get_prop(v, "tel", 1);
 406         if (s != NULL) {
 407                 cprintf("%s\n", s);
 408                 }
 409         else {
 410                 cprintf(" \n");
 411         }
 412
 413         cprintf("%d\n", usbuf.axlevel);
 414
 415         s = vcard_get_prop(v, "email;internet", 0);
 416         cprintf("%s\n", s ? s : " ");
 417         s = vcard_get_prop(v, "adr", 0);
 418         sprintf(adr, "%s", s ? s : " ");/* address... */
 419
 420         extract_token(buf, adr, 6, ';');
 421         cprintf("%s\n", buf);                           /* country */
 422         cprintf("000\n");
 423         }
 424
 425
 426 /*
 427  * When a user is being deleted, we have to remove his/her vCard.
 428  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
 429  * field, and the same Extended ID as the existing card.
 430  */
 431 void vcard_purge(char *username, long usernum) {
 432         struct CtdlMessage *msg;
 433         char buf[SIZ];
 434
 435         msg = (struct CtdlMessage *) mallok(sizeof(struct CtdlMessage));
 436         if (msg == NULL) return;
 437         memset(msg, 0, sizeof(struct CtdlMessage));
 438
 439         msg->cm_magic = CTDLMESSAGE_MAGIC;
 440         msg->cm_anon_type = MES_NORMAL;
 441         msg->cm_format_type = 0;
 442         msg->cm_fields['A'] = strdoop(username);
 443         msg->cm_fields['O'] = strdoop(ADDRESS_BOOK_ROOM);
 444         msg->cm_fields['N'] = strdoop(NODENAME);
 445         msg->cm_fields['M'] = strdoop("Purge this vCard\n");
 446
 447         sprintf(buf,
 448                 "Citadel vCard: personal card for %s at %s",
 449                 msg->cm_fields['A'], NODENAME);
 450         msg->cm_fields['E'] = strdoop(buf);
 451
 452         msg->cm_fields['S'] = strdoop("CANCEL");
 453
 454         CtdlSaveMsg(msg, "", ADDRESS_BOOK_ROOM, MES_LOCAL);
 455         CtdlFreeMessage(msg);
 456
 457         /* Start a netproc run in the background, so the "purge" message
 458          * gets flushed out of the room immediately
 459          */
 460         system("./netproc &");
 461 }
 462
 463
 464
 465
 466 /*
 467  * Session startup, allocate some per-session data
 468  */
 469 void vcard_session_startup_hook(void) {
 470         CtdlAllocUserData(SYM_VCARD, sizeof(struct vcard_internal_info));
 471 }
 472
 473
 474 char *Dynamic_Module_Init(void)
 475 {
 476         SYM_VCARD = CtdlGetDynamicSymbol();
 477         CtdlRegisterSessionHook(vcard_session_startup_hook, EVT_START);
 478         CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
 479         CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
 480         CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
 481         CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
 482         CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
 483         create_room(ADDRESS_BOOK_ROOM, 3, "", 0, 1);
 484         return "$Id$";
 485 }
 486
 487
 488