git.sur5r.net Git - openldap/blob - clients/ud/find.c

   1 /*
   2  * Copyright (c) 1991, 1992, 1993
   3  * Regents of the University of Michigan.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms are permitted
   6  * provided that this notice is preserved and that due credit is given
   7  * to the University of Michigan at Ann Arbor. The name of the University
   8  * may not be used to endorse or promote products derived from this
   9  * software without specific prior written permission. This software
  10  * is provided ``as is'' without express or implied warranty.
  11  */
  12
  13 #include "portable.h"
  14
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17
  18 #include <ac/ctype.h>
  19 #include <ac/string.h>
  20 #include <ac/time.h>
  21
  22 #include <lber.h>
  23 #include <ldap.h>
  24
  25 #include "ud.h"
  26
  27 static int num_picked = 0;      /* used when user picks entry at More prompt */
  28
  29
  30 int
  31 vrfy( char *dn )
  32 {
  33         LDAPMessage *results;
  34         static char *attrs[2] = { "objectClass", NULL };
  35         int ld_errno = 0;
  36
  37 #ifdef DEBUG
  38         if (debug & D_TRACE)
  39                 printf("->vrfy(%s)\n", dn);
  40 #endif
  41         /* verify that this DN exists in the directory */
  42         (void) ldap_search_s(ld, dn, LDAP_SCOPE_BASE, "objectClass=*", attrs, TRUE, &results);
  43         (void) ldap_msgfree(results);
  44
  45         ldap_get_option(ld, LDAP_OPT_ERROR_NUMBER, &ld_errno);
  46
  47         if ((ld_errno == LDAP_NO_SUCH_OBJECT) || (ld_errno == LDAP_INVALID_DN_SYNTAX))
  48                 return(0);
  49         else if (ld_errno == LDAP_SUCCESS)
  50                 return(1);
  51         else {
  52                 ldap_perror(ld, "ldap_search");
  53                 return(0);
  54         }
  55 }
  56
  57
  58 static LDAPMessage *
  59 disambiguate( LDAPMessage *result, int matches, char **read_attrs, char *who )
  60 {
  61         int choice;                     /* entry that user chooses */
  62         int i;
  63         char *namelist[MAX_NUM_NAMES];  /* names found */
  64         char response[SMALL_BUF_SIZE];  /* results from user */
  65         char *name = NULL;              /* DN to lookup */
  66         LDAPMessage *mp;
  67         int ld_errno = 0;
  68
  69 #ifdef DEBUG
  70         if (debug & D_TRACE)
  71                 printf("->disambiguate(%x, %d, %x, %s)\n", result, matches,
  72                                                         read_attrs, who);
  73 #endif
  74
  75         ldap_get_option(ld, LDAP_OPT_ERROR_NUMBER, &ld_errno);
  76
  77         /*
  78          *  If we are here, it means that we got back multiple answers.
  79          */
  80         if ((ld_errno == LDAP_TIMELIMIT_EXCEEDED)
  81             || (ld_errno == LDAP_SIZELIMIT_EXCEEDED)) {
  82                 if (verbose) {
  83                         printf("  Your query was too general and a limit was exceeded.  The results listed\n");
  84                         printf("  are not complete.  You may want to try again with a more refined query.\n\n");
  85                 }
  86                 else
  87                         printf("  Time or size limit exceeded.  Partial results follow.\n\n");
  88         }
  89         printf("  %1d names matched \"%s\".\n", matches, who);
  90         for (;;) {
  91                 printf("  Do you wish to see a list of names? ");
  92                 fflush(stdout);
  93                 (void) memset(response, 0, sizeof(response));
  94                 fetch_buffer(response, sizeof(response), stdin);
  95                 switch (response[0]) {
  96                 case 'n' :
  97                 case 'N' :
  98                 case '\0' :
  99                 case '\n' :
 100                         return(NULL);
 101                         /* NOTREACHED */
 102                 case 'y' :
 103                 case 'Y' :
 104                         print_list(result, namelist, &matches);
 105                         if (num_picked == 0)
 106                                 choice = pick_one(matches);
 107                         else
 108                                 choice = num_picked;
 109                         num_picked = 0;
 110                         if (choice >= 0)
 111                                 name = strdup(namelist[choice]);
 112                         /*
 113                          *  Now free up all of the pointers allocated in
 114                          *  namelist.  The print_list() routine that filled
 115                          *  in this collection of strings starts at 1, not 0.
 116                          */
 117                         for (i = 1; namelist[i] != NULL; i++)
 118                                 Free(namelist[i]);
 119                         if (choice < 0) {
 120                                 if (name != NULL)
 121                                         Free(name);
 122                                 return(NULL);
 123                         }
 124 #ifdef DEBUG
 125                         if (debug & D_FIND) {
 126                                 printf("  Calling ldap_search_s()\n");
 127                                 printf("     ld = 0x%x\n", ld);
 128                                 printf("     search base = %s\n", name);
 129                                 printf("     scope = LDAP_SCOPE_BASE\n");
 130                                 printf("     filter = objectClass=*\n");
 131                                 for (i = 0; read_attrs[i] != NULL; i++)
 132                                         printf("     read_attrs[%d] = %s\n", i, read_attrs[i]);
 133                                 printf("     read_attrs[%d] = NULL\n", i);
 134                                 printf("     attrsonly = FALSE\n");
 135                                 printf("     &mp = 0x%x\n", &mp);
 136                         }
 137 #endif
 138                         if (ldap_search_s(ld, name, LDAP_SCOPE_BASE, "objectClass=*", read_attrs, FALSE, &mp) != LDAP_SUCCESS) {
 139                                 ldap_perror(ld, "ldap_search_s");
 140                                 Free(name);
 141                                 ldap_msgfree(mp);
 142                                 return(NULL);
 143                         }
 144                         Free(name);
 145                         return(mp);
 146                         /* NOTREACHED */
 147                 default :
 148                         printf("  Please enter 'y', 'n', or RETURN.\n");
 149                         break;
 150                 }
 151         }
 152 }
 153
 154 LDAPMessage *
 155 find( char *who, int quiet )
 156 {
 157         register int i, j, k;           /* general ints */
 158         int matches;                    /* from ldap_count_entries() */
 159         int admonished = FALSE;
 160         static int attrs_set = 0;
 161         static char *read_attrs[MAX_ATTRS];     /* attrs to use in a read op */
 162         static char *search_attrs[MAX_ATTRS];   /* attrs to use in a srch op */
 163         static int rc;                  /* return from ldap_search */
 164         LDAPMessage *ldtmp, *res;       /* results returned from search */
 165         char name[MED_BUF_SIZE];
 166         char response[SMALL_BUF_SIZE];
 167         char *cp, *dn, **rdns;
 168         LDAPFiltInfo *fi;
 169
 170 #ifdef DEBUG
 171         if (debug & D_TRACE)
 172                 fprintf(stderr, "->find(%s)\n", who);
 173 #endif
 174         /* did not specify a 'who' */
 175         if (who == NULL) {
 176                 printf("  Locate whose entry? ");
 177                 fflush(stdout);
 178                 fetch_buffer(name, sizeof(name), stdin);
 179                 if (name[0] != '\0')
 180                         who = name;
 181                 else
 182                         return(NULL);
 183         }
 184         if (attrs_set == 0) {
 185                 j = k = 0;
 186                 attrs_set = 1;
 187                 for (i = 0; attrlist[i].quipu_name != NULL; i++) {
 188                         if (attrlist[i].flags & ATTR_FLAG_READ)
 189                                 read_attrs[j++] = attrlist[i].quipu_name;
 190                         if (attrlist[i].flags & ATTR_FLAG_SEARCH)
 191                                 search_attrs[k++] = attrlist[i].quipu_name;
 192                 }
 193                 read_attrs[j] = NULL;
 194                 search_attrs[k] = NULL;
 195         }
 196
 197         /*
 198          *  If the user-supplied name has any commas in it, we
 199          *  assume that it is a UFN, and do everything right
 200          *  here.  If we don't find it, treat it as NOT a UFN.
 201          */
 202         if (strchr(who, ',') != NULL) {
 203                 int     savederef, deref;
 204 #ifdef DEBUG
 205                 if (debug & D_FIND)
 206                         printf("\"%s\" appears to be a UFN\n", who);
 207 #endif
 208                 ldap_get_option(ld, LDAP_OPT_DEREF, &savederef);
 209                 deref = LDAP_DEREF_FINDING;
 210                 ldap_set_option(ld, LDAP_OPT_DEREF, &deref);
 211
 212                 if ((rc = ldap_ufn_search_s(ld, who, search_attrs, FALSE, &res)) !=
 213                     LDAP_SUCCESS && rc != LDAP_SIZELIMIT_EXCEEDED &&
 214                     rc != LDAP_TIMELIMIT_EXCEEDED) {
 215                         ldap_perror(ld, "ldap_ufn_search_s");
 216                         ldap_set_option(ld, LDAP_OPT_DEREF, &savederef);
 217                         return(NULL);
 218                 }
 219                 if ((matches = ldap_count_entries(ld, res)) < 0) {
 220                         ldap_perror(ld, "ldap_count_entries");
 221                         ldap_set_option(ld, LDAP_OPT_DEREF, &savederef);
 222                         return(NULL);
 223                 } else if (matches == 1) {
 224                         dn = ldap_get_dn(ld, ldap_first_entry(ld, res));
 225                         rc = ldap_search_s(ld, dn, LDAP_SCOPE_BASE, "objectClass=*", read_attrs, FALSE, &res);
 226                         ldap_memfree(dn);
 227                         if (rc != LDAP_SUCCESS) {
 228                                 int ld_errno = 0;
 229                                 ldap_get_option(ld, LDAP_OPT_ERROR_NUMBER, &ld_errno);
 230                                 if (ld_errno == LDAP_UNAVAILABLE)
 231                                         printf("  Could not contact the LDAP server to find \"%s\".\n", who);
 232                                 else
 233                                         ldap_perror(ld, "ldap_search_s");
 234                                 return(NULL);
 235                         }
 236                         ldap_set_option(ld, LDAP_OPT_DEREF, &savederef);
 237                         return(res);
 238                 } else if (matches > 1 ) {
 239                         return disambiguate( res, matches, read_attrs, who );
 240                 }
 241                 ldap_set_option(ld, LDAP_OPT_DEREF, &savederef);
 242         }
 243
 244         /*
 245          *  Old users of the MTS *USERDIRECTORY will likely wrap the name
 246          *  in quotes.  Not only is this unnecessary, but it also won't work.
 247          */
 248         for (cp = strchr(who, '"'); cp != NULL; cp = strchr(cp, '"')) {
 249                 if (!admonished) {
 250                         printf("  You do not need to enclose names in quotes.\n");
 251                         admonished = TRUE;
 252                 }
 253                 *cp++ = ' ';
 254                 if (*cp == '\0')
 255                         break;
 256         }
 257
 258         /*
 259          *  It wasn't a UFN, so look it up in the usual method.
 260          */
 261         for (fi = ldap_getfirstfilter(lfdp, "ud", who); fi != NULL;
 262              fi = ldap_getnextfilter(lfdp)) {
 263 #ifdef DEBUG
 264                 if (debug & D_FIND)
 265                         printf("Searching, filter = %s\n", fi->lfi_filter);
 266 #endif
 267
 268                 if ((rc = ldap_search_s(ld, search_base, fi->lfi_scope,
 269                 fi->lfi_filter, search_attrs, FALSE, &res)) != LDAP_SUCCESS &&
 270                 rc != LDAP_SIZELIMIT_EXCEEDED && rc != LDAP_TIMELIMIT_EXCEEDED) {
 271                         ldap_perror(ld, "ldap_search_s");
 272                         ldap_msgfree(res);
 273                         return(NULL);
 274                 }
 275                 if ((matches = ldap_count_entries(ld, res)) < 0) {
 276                         ldap_perror(ld, "ldap_count_entries");
 277                         ldap_msgfree(res);
 278                         return(NULL);
 279                 }
 280                 else if (matches == 1) {
 281                         dn = ldap_get_dn(ld, ldap_first_entry(ld, res));
 282                         ldap_msgfree(res);
 283                         if (!quiet)
 284                                 printf("  Found one %s match for \"%s\"\n",
 285                                                         fi->lfi_desc, who);
 286                         if (!fi->lfi_isexact) {
 287                                 rdns = ldap_explode_dn(dn, TRUE);
 288                                 printf("  Do you mean %s? ", *rdns);
 289                                 (void) ldap_value_free(rdns);
 290                                 fflush(stdout);
 291                                 fetch_buffer(response, sizeof(response), stdin);
 292                                 if ((response[0] == 'n') || (response[0] == 'N'))
 293                                 {
 294                                         ldap_memfree(dn);
 295                                         return(NULL);
 296                                 }
 297                         }
 298 #ifdef DEBUG
 299                         if (debug & D_FIND) {
 300                                 printf("  Calling ldap_search_s()\n");
 301                                 printf("     ld = 0x%x\n", ld);
 302                                 printf("     dn = %s\n", dn);
 303                                 printf("     scope = LDAP_SCOPE_BASE\n");
 304                                 printf("     filter = %s\n", "objectClass=*");
 305                                 for (i = 0; read_attrs[i] != NULL; i++)
 306                                         printf("     read_attrs[%d] = %s\n", i, read_attrs[i]);
 307                                 printf("     read_attrs[%d] = NULL\n", i);
 308                                 printf("     attrsonly = FALSE\n");
 309                                 printf("     &results = 0x%x\n", &res);
 310                         }
 311 #endif
 312                         if (ldap_search_s(ld, dn, LDAP_SCOPE_BASE, "objectClass=*", read_attrs, FALSE, &res) != LDAP_SUCCESS) {
 313                                 ldap_perror(ld, "ldap_search_s");
 314                                 ldap_msgfree(res);
 315                                 res = NULL;
 316                         }
 317                         ldap_memfree(dn);
 318                         return(res);
 319                 }
 320                 else if (matches > 0) {
 321                         ldtmp = disambiguate(res, matches, read_attrs, who);
 322                         ldap_msgfree(res);
 323                         return(ldtmp);
 324                 }
 325                 /* if we're here, there were zero matches */
 326                 ldap_msgfree(res);
 327         }
 328         return(NULL);
 329 }
 330
 331 int
 332 pick_one( int i )
 333 {
 334         int n;
 335         char user_pick[SMALL_BUF_SIZE];
 336
 337 #ifdef DEBUG
 338         if (debug & D_TRACE)
 339                 printf("->pick_one(%d)\n", i);
 340 #endif
 341
 342         /* make the user pick an entry */
 343         for (;;) {
 344                 printf("  Enter the number of the name you want or Q to quit: ");
 345                 fflush(stdout);
 346                 fetch_buffer(user_pick, sizeof(user_pick), stdin);
 347                 if (user_pick[0] == 'q' || user_pick[0] == 'Q')
 348                         return(-1);
 349                 n = atoi(user_pick);
 350                 if ((n > 0) && (n <= i))
 351                         return(n);
 352                 printf("  Invalid response\n");
 353         }
 354         /* NOTREACHED */
 355 }
 356
 357 void
 358 print_list( LDAPMessage *list, char **names, int *matches )
 359 {
 360         char **rdns, **cpp;
 361         char resp[SMALL_BUF_SIZE];
 362         register LDAPMessage *ep;
 363         register int i = 1;
 364         register int rest = 4;          /* 4, not 1 */
 365
 366 #ifdef DEBUG
 367         if (debug & D_TRACE)
 368                 printf("->print_list(%x, %x, %x)\n", list, names, matches);
 369 #endif
 370         /* print a list of names from which the user will select */
 371         for (ep = ldap_first_entry(ld, list); ep != NULL; ep = ldap_next_entry(ld, ep)) {
 372
 373                 names[i] = ldap_get_dn(ld, ep);
 374                 rdns = ldap_explode_dn(names[i], TRUE);
 375                 cpp = ldap_get_values(ld, ep, "title");
 376                 if (cpp == NULL)
 377                         printf(" %3d. %s\n", i, *rdns);
 378                 else
 379                         printf(" %3d. %s, %s\n", i, *rdns, *cpp);
 380                 ldap_value_free(rdns);
 381                 ldap_value_free(cpp);
 382                 i++;
 383                 if ((rest++ > (lpp - 1)) && (i < *matches)) {
 384 again:
 385                         printf("  More? ");
 386                         fflush(stdout);
 387                         fetch_buffer(resp, sizeof(resp), stdin);
 388                         if ((resp[0] == 'n') || (resp[0] == 'N'))
 389                                 break;
 390                         else if ((num_picked = atoi(resp)) != 0) {
 391                                 if (num_picked < i)
 392                                         break;
 393                                 else
 394                                         goto again;
 395                         }
 396                         rest = 1;
 397                 }
 398         }
 399         *matches = i - 1;
 400         names[i] = NULL;
 401         return;
 402 }
 403
 404 int
 405 find_all_subscribers( char **sub, char *group )
 406 {
 407         int count;
 408         LDAPMessage *result;
 409         static char *attributes[] = { "cn", NULL };
 410         char filter[MED_BUF_SIZE];
 411         register LDAPMessage *ep;
 412         register int i = 0;
 413
 414 #ifdef DEBUG
 415         if (debug & D_TRACE)
 416                 printf("->find_all_subscribers(%x, %s)\n", sub, group);
 417 #endif
 418
 419         sprintf(filter, "%s=%s", "memberOfGroup", group);
 420         if (ldap_search_s(ld, search_base, LDAP_SCOPE_SUBTREE, filter, attributes, FALSE, &result) != LDAP_SUCCESS) {
 421                 int ld_errno = 0;
 422                 ldap_get_option(ld, LDAP_OPT_ERROR_NUMBER, &ld_errno);
 423                 if (ld_errno == LDAP_NO_SUCH_ATTRIBUTE)
 424                         return(0);
 425                 ldap_perror(ld, "ldap_search_s");
 426                 return(0);
 427         }
 428         count = ldap_count_entries(ld, result);
 429         if (count < 1) {
 430                 ldap_msgfree(result);
 431                 return(0);
 432         }
 433         if ( count > MAX_VALUES ) {
 434                 printf( "  Only retrieving the first %d subscribers....\n",
 435                         MAX_VALUES );
 436         }
 437
 438         for (ep = ldap_first_entry(ld, result); i < MAX_VALUES && ep != NULL; ep = ldap_next_entry(ld, ep)) {
 439                 sub[i++] = ldap_get_dn(ld, ep);
 440 #ifdef DEBUG
 441                 if (debug & D_PARSE)
 442                         printf("sub[%d] = %s\n", i - 1, sub[i - 1]);
 443 #endif
 444         }
 445         sub[i] = NULL;
 446         ldap_msgfree(result);
 447         return(count);
 448 }
 449
 450 char *
 451 fetch_boolean_value( char *who, struct attribute attr )
 452 {
 453         LDAPMessage *result;            /* from the search below */
 454         register LDAPMessage *ep;       /* entry pointer */
 455         register char **vp;             /* for parsing the result */
 456         static char *attributes[] = { NULL, NULL };
 457
 458 #ifdef DEBUG
 459         if (debug & D_TRACE)
 460                 printf("->fetch_boolean_value(%s, %s)\n", who, attr.quipu_name);
 461 #endif
 462         attributes[0] = attr.quipu_name;
 463         if (ldap_search_s(ld, who, LDAP_SCOPE_BASE, "objectClass=*", attributes, FALSE, &result) != LDAP_SUCCESS) {
 464                 int ld_errno = 0;
 465                 ldap_get_option(ld, LDAP_OPT_ERROR_NUMBER, &ld_errno);
 466                 if (ld_errno == LDAP_NO_SUCH_ATTRIBUTE)
 467                         return("FALSE");
 468                 ldap_perror(ld, "ldap_search_s");
 469                 ldap_msgfree(result);
 470                 return(NULL);
 471         }
 472
 473         /*
 474          *  We did a read on one name and only asked for one attribute.
 475          *  There's no reason to loop through any of these structures.
 476          *
 477          *  If ldap_first_attribute() returns NULL, then this entry did
 478          *  not have this particular attribute.
 479          */
 480         ep = ldap_first_entry(ld, result);
 481         if ((vp = (char **) ldap_get_values(ld, ep, attr.quipu_name)) == NULL) {
 482                 ldap_msgfree(result);
 483                 return("FALSE");
 484         }
 485         else {
 486                 ldap_msgfree(result);
 487                 if (!strcasecmp(*vp, "TRUE")) {
 488                         ldap_value_free(vp);
 489                         return("TRUE");
 490                 }
 491                 else if (!strcasecmp(*vp, "FALSE")) {
 492                         ldap_value_free(vp);
 493                         return("FALSE");
 494                 }
 495                 else {
 496                         fprintf(stderr, "  Got garbage -> [%s]\n", *vp);
 497                         ldap_value_free(vp);
 498                         return(NULL);
 499                 }
 500         }
 501 }