citadel/serv_vcard.c

   1 /*
   2  * serv_vcard.c
   3  *
   4  * A server-side module for Citadel which supports address book information
   5  * using the standard vCard format.
   6  *
   7  * $Id$
   8  *
   9  */
  10
  11 #define ADDRESS_BOOK_ROOM       "Global Address Book"
  12
  13 #include "sysdep.h"
  14 #include <stdlib.h>
  15 #include <unistd.h>
  16 #include <stdio.h>
  17 #include <fcntl.h>
  18 #include <signal.h>
  19 #include <pwd.h>
  20 #include <errno.h>
  21 #include <sys/types.h>
  22 #include <sys/time.h>
  23 #include <sys/wait.h>
  24 #include <string.h>
  25 #include <limits.h>
  26 #include "citadel.h"
  27 #include "server.h"
  28 #include <time.h>
  29 #include "sysdep_decls.h"
  30 #include "citserver.h"
  31 #include "support.h"
  32 #include "config.h"
  33 #include "control.h"
  34 #include "dynloader.h"
  35 #include "room_ops.h"
  36 #include "user_ops.h"
  37 #include "policy.h"
  38 #include "database.h"
  39 #include "msgbase.h"
  40 #include "tools.h"
  41 #include "vcard.h"
  42
  43 struct vcard_internal_info {
  44         long msgnum;
  45 };
  46
  47 /* Message number symbol used internally by these functions */
  48 unsigned long SYM_VCARD;
  49 #define VC ((struct vcard_internal_info *)CtdlGetUserData(SYM_VCARD))
  50
  51
  52 /*
  53  * This handler detects whether the user is attempting to save a new
  54  * vCard as part of his/her personal configuration, and handles the replace
  55  * function accordingly (delete the user's existing vCard in the config room
  56  * and in the global address book).
  57  */
  58 int vcard_upload_beforesave(struct CtdlMessage *msg) {
  59         char *ptr;
  60         int linelen;
  61         char config_rm[ROOMNAMELEN];
  62         char buf[256];
  63
  64
  65         /* If this isn't the configuration room, or if this isn't a MIME
  66          * message, don't bother.
  67          */
  68         if (strcasecmp(msg->cm_fields['O'], CONFIGROOM)) return(0);
  69         if (msg->cm_format_type != 4) return(0);
  70
  71         ptr = msg->cm_fields['M'];
  72         while (ptr != NULL) {
  73
  74                 linelen = strcspn(ptr, "\n");
  75                 if (linelen == 0) return(0);    /* end of headers */
  76
  77                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
  78                         /* Bingo!  The user is uploading a new vCard, so
  79                          * delete the old one.
  80                          */
  81
  82                         /* Delete the user's old vCard.  This would probably
  83                          * get taken care of by the replication check, but we
  84                          * want to make sure there is absolutely only one
  85                          * vCard in the user's config room at all times.
  86                          *
  87                          * FIX ... this needs to be tweaked to allow an admin
  88                          * to make changes to another user's vCard instead of
  89                          * assuming that it's always the user saving his own.
  90                          */
  91                         MailboxName(config_rm, &CC->usersupp, CONFIGROOM);
  92                         CtdlDeleteMessages(config_rm, 0L, "text/x-vcard");
  93
  94                         /* Set the Extended-ID to a standardized one so the
  95                          * replication always works correctly
  96                          */
  97                         if (msg->cm_fields['E'] != NULL)
  98                                 phree(msg->cm_fields['E']);
  99
 100                         sprintf(buf,
 101                                 "Citadel vCard: personal card for %s at %s",
 102                                 msg->cm_fields['A'], NODENAME);
 103                         msg->cm_fields['E'] = strdoop(buf);
 104
 105                         /* Now allow the save to complete. */
 106                         return(0);
 107                 }
 108
 109                 ptr = strchr((char *)ptr, '\n');
 110                 if (ptr != NULL) ++ptr;
 111         }
 112
 113         return(0);
 114 }
 115
 116
 117
 118 /*
 119  * This handler detects whether the user is attempting to save a new
 120  * vCard as part of his/her personal configuration, and handles the replace
 121  * function accordingly (copy the vCard from the config room to the global
 122  * address book).
 123  */
 124 int vcard_upload_aftersave(struct CtdlMessage *msg) {
 125         char *ptr;
 126         int linelen;
 127         long I;
 128
 129
 130         /* If this isn't the configuration room, or if this isn't a MIME
 131          * message, don't bother.
 132          */
 133         if (strcasecmp(msg->cm_fields['O'], CONFIGROOM)) return(0);
 134         if (msg->cm_format_type != 4) return(0);
 135
 136         ptr = msg->cm_fields['M'];
 137         while (ptr != NULL) {
 138
 139                 linelen = strcspn(ptr, "\n");
 140                 if (linelen == 0) return(0);    /* end of headers */
 141
 142                 if (!strncasecmp(ptr, "Content-type: text/x-vcard", 26)) {
 143                         /* Bingo!  The user is uploading a new vCard, so
 144                          * copy it to the Global Address Book room.
 145                          */
 146
 147                         I = atol(msg->cm_fields['I']);
 148                         if (I < 0L) return(0);
 149
 150                         CtdlSaveMsgPointerInRoom(ADDRESS_BOOK_ROOM, I,
 151                                 (SM_VERIFY_GOODNESS | SM_DO_REPL_CHECK) );
 152
 153                         return(0);
 154                 }
 155
 156                 ptr = strchr((char *)ptr, '\n');
 157                 if (ptr != NULL) ++ptr;
 158         }
 159
 160         return(0);
 161 }
 162
 163
 164
 165 /*
 166  * back end function used for callbacks
 167  */
 168 void vcard_gu_backend(long msgnum) {
 169         VC->msgnum = msgnum;
 170 }
 171
 172
 173 /*
 174  * If this user has a vcard on disk, read it into memory, otherwise allocate
 175  * and return an empty vCard.
 176  */
 177 struct vCard *vcard_get_user(struct usersupp *u) {
 178         char hold_rm[ROOMNAMELEN];
 179         char config_rm[ROOMNAMELEN];
 180         struct CtdlMessage *msg;
 181         struct vCard *v;
 182
 183         strcpy(hold_rm, CC->quickroom.QRname);  /* save current room */
 184         MailboxName(config_rm, u, CONFIGROOM);
 185
 186         if (getroom(&CC->quickroom, config_rm) != 0) {
 187                 getroom(&CC->quickroom, hold_rm);
 188                 return vcard_new();
 189         }
 190
 191         /* We want the last (and probably only) vcard in this room */
 192         VC->msgnum = (-1);
 193         CtdlForEachMessage(MSGS_LAST, 1, "text/x-vcard",
 194                 NULL, vcard_gu_backend);
 195         getroom(&CC->quickroom, hold_rm);       /* return to saved room */
 196
 197         if (VC->msgnum < 0L) return vcard_new();
 198
 199         msg = CtdlFetchMessage(VC->msgnum);
 200         if (msg == NULL) return vcard_new();
 201
 202         v = vcard_load(msg->cm_fields['M']);
 203         CtdlFreeMessage(msg);
 204         return v;
 205 }
 206
 207
 208 /*
 209  * Store this user's vCard in the appropriate place
 210  */
 211 /*
 212  * Write our config to disk
 213  */
 214 void vcard_write_user(struct usersupp *u, struct vCard *v) {
 215         char temp[PATH_MAX];
 216         FILE *fp;
 217         char *ser;
 218
 219         strcpy(temp, tmpnam(NULL));
 220         ser = vcard_serialize(v);
 221
 222         fp = fopen(temp, "w");
 223         if (fp == NULL) return;
 224         if (ser == NULL) {
 225                 fprintf(fp, "begin:vcard\r\nend:vcard\r\n");
 226         } else {
 227                 fwrite(ser, strlen(ser), 1, fp);
 228                 phree(ser);
 229         }
 230         fclose(fp);
 231
 232         /* This handy API function does all the work for us.
 233          * NOTE: normally we would want to set that last argument to 1, to
 234          * force the system to delete the user's old vCard.  But it doesn't
 235          * have to, because the vcard_upload_beforesave() hook above
 236          * is going to notice what we're trying to do, and delete the old vCard.
 237          */
 238         CtdlWriteObject(CONFIGROOM,     /* which room */
 239                         "text/x-vcard", /* MIME type */
 240                         temp,           /* temp file */
 241                         u,              /* which user */
 242                         0,              /* not binary */
 243                         0,              /* don't delete others of this type */
 244                         0);             /* no flags */
 245
 246         unlink(temp);
 247 }
 248
 249
 250
 251 /*
 252  * old style "enter registration info" command
 253  */
 254 void cmd_regi(char *argbuf) {
 255         int a,b,c;
 256         char buf[256];
 257         struct vCard *my_vcard;
 258
 259         char tmpaddr[256];
 260         char tmpcity[256];
 261         char tmpstate[256];
 262         char tmpzip[256];
 263         char tmpaddress[512];
 264
 265         if (!(CC->logged_in)) {
 266                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 267                 return;
 268                 }
 269
 270         my_vcard = vcard_get_user(&CC->usersupp);
 271         strcpy(tmpaddr, "");
 272         strcpy(tmpcity, "");
 273         strcpy(tmpstate, "");
 274         strcpy(tmpzip, "");
 275
 276         cprintf("%d Send registration...\n", SEND_LISTING);
 277         a=0;
 278         while (client_gets(buf), strcmp(buf,"000")) {
 279                 if (a==0) vcard_set_prop(my_vcard, "n", buf);
 280                 if (a==1) strcpy(tmpaddr,buf);
 281                 if (a==2) strcpy(tmpcity,buf);
 282                 if (a==3) strcpy(tmpstate,buf);
 283                 if (a==4) {
 284                         for (c=0; c<strlen(buf); ++c) {
 285                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 286                                         b=strlen(tmpzip);
 287                                         tmpzip[b]=buf[c];
 288                                         tmpzip[b+1]=0;
 289                                         }
 290                                 }
 291                         }
 292                 if (a==5) vcard_set_prop(my_vcard, "tel;home", buf);
 293                 if (a==6) vcard_set_prop(my_vcard, "email;internet", buf);
 294                 ++a;
 295                 }
 296         sprintf(tmpaddress, ";;%s;%s;%s;%s;USA",
 297                 tmpaddr, tmpcity, tmpstate, tmpzip);
 298         vcard_set_prop(my_vcard, "adr", tmpaddress);
 299         vcard_write_user(&CC->usersupp, my_vcard);
 300         vcard_free(my_vcard);
 301
 302         lgetuser(&CC->usersupp, CC->curr_user);
 303         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 304         lputuser(&CC->usersupp);
 305
 306         /* set global flag calling for validation */
 307         begin_critical_section(S_CONTROL);
 308         get_control();
 309         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 310         put_control();
 311         end_critical_section(S_CONTROL);
 312         }
 313
 314
 315
 316 /*
 317  * get registration info for a user
 318  */
 319 void cmd_greg(char *argbuf)
 320 {
 321         struct usersupp usbuf;
 322         struct vCard *v;
 323         char *tel;
 324         char who[256];
 325         char adr[256];
 326         char buf[256];
 327
 328         extract(who, argbuf, 0);
 329
 330         if (!(CC->logged_in)) {
 331                 cprintf("%d Not logged in.\n", ERROR+NOT_LOGGED_IN);
 332                 return;
 333         }
 334
 335         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 336
 337         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 338                 cprintf("%d Higher access required.\n",
 339                         ERROR+HIGHER_ACCESS_REQUIRED);
 340                 return;
 341         }
 342
 343         if (getuser(&usbuf, who) != 0) {
 344                 cprintf("%d '%s' not found.\n", ERROR+NO_SUCH_USER, who);
 345                 return;
 346         }
 347
 348         v = vcard_get_user(&usbuf);
 349
 350         cprintf("%d %s\n", LISTING_FOLLOWS, usbuf.fullname);
 351         cprintf("%ld\n", usbuf.usernum);
 352         cprintf("%s\n", usbuf.password);
 353         cprintf("%s\n", vcard_get_prop(v, "n", 0));     /* name */
 354
 355         sprintf(adr, "%s", vcard_get_prop(v, "adr", 0));/* address... */
 356
 357         extract_token(buf, adr, 2, ';');
 358         cprintf("%s\n", buf);                           /* street */
 359         extract_token(buf, adr, 3, ';');
 360         cprintf("%s\n", buf);                           /* city */
 361         extract_token(buf, adr, 4, ';');
 362         cprintf("%s\n", buf);                           /* state */
 363         extract_token(buf, adr, 5, ';');
 364         cprintf("%s\n", buf);                           /* zip */
 365
 366         tel = vcard_get_prop(v, "tel;home", 0);
 367         if (tel == NULL) tel = vcard_get_prop(v, "tel", 1);
 368         if (tel != NULL) {
 369                 cprintf("%s\n", tel);
 370                 }
 371         else {
 372                 cprintf(" \n");
 373         }
 374
 375         cprintf("%d\n", usbuf.axlevel);
 376
 377         cprintf("%s\n", vcard_get_prop(v, "email;internet", 0));
 378         cprintf("000\n");
 379         }
 380
 381
 382 /*
 383  * When a user is being deleted, we have to remove his/her vCard.
 384  * This is accomplished by issuing a message with 'CANCEL' in the S (special)
 385  * field, and the same Extended ID as the existing card.
 386  */
 387 void vcard_purge(char *username, long usernum) {
 388         struct CtdlMessage *msg;
 389         char buf[256];
 390
 391         msg = (struct CtdlMessage *) mallok(sizeof(struct CtdlMessage));
 392         if (msg == NULL) return;
 393         memset(msg, 0, sizeof(struct CtdlMessage));
 394
 395         msg->cm_magic = CTDLMESSAGE_MAGIC;
 396         msg->cm_anon_type = MES_NORMAL;
 397         msg->cm_format_type = 0;
 398         msg->cm_fields['A'] = strdoop(username);
 399         msg->cm_fields['O'] = strdoop(ADDRESS_BOOK_ROOM);
 400         msg->cm_fields['N'] = strdoop(NODENAME);
 401         msg->cm_fields['M'] = strdoop("Purge this vCard\n");
 402
 403         sprintf(buf,
 404                 "Citadel vCard: personal card for %s at %s",
 405                 msg->cm_fields['A'], NODENAME);
 406         msg->cm_fields['E'] = strdoop(buf);
 407
 408         msg->cm_fields['S'] = strdoop("CANCEL");
 409
 410         CtdlSaveMsg(msg, "", ADDRESS_BOOK_ROOM, MES_LOCAL, 1);
 411         CtdlFreeMessage(msg);
 412 }
 413
 414
 415
 416
 417 /*
 418  * Session startup, allocate some per-session data
 419  */
 420 void vcard_session_startup_hook(void) {
 421         CtdlAllocUserData(SYM_VCARD, sizeof(struct vcard_internal_info));
 422 }
 423
 424
 425 char *Dynamic_Module_Init(void)
 426 {
 427         SYM_VCARD = CtdlGetDynamicSymbol();
 428         CtdlRegisterSessionHook(vcard_session_startup_hook, EVT_START);
 429         CtdlRegisterMessageHook(vcard_upload_beforesave, EVT_BEFORESAVE);
 430         CtdlRegisterMessageHook(vcard_upload_aftersave, EVT_AFTERSAVE);
 431         CtdlRegisterProtoHook(cmd_regi, "REGI", "Enter registration info");
 432         CtdlRegisterProtoHook(cmd_greg, "GREG", "Get registration info");
 433         CtdlRegisterUserHook(vcard_purge, EVT_PURGEUSER);
 434         create_room(ADDRESS_BOOK_ROOM, 0, "", 0);
 435         return "$Id$";
 436 }
 437
 438
 439