citadel/serv_ldap.c

   1 /*
   2  * $Id$
   3  *
   4  * A module which implements the LDAP connector for Citadel.
   5  *
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13 #include <signal.h>
  14 #include <pwd.h>
  15 #include <errno.h>
  16 #include <sys/types.h>
  17
  18 #if TIME_WITH_SYS_TIME
  19 # include <sys/time.h>
  20 # include <time.h>
  21 #else
  22 # if HAVE_SYS_TIME_H
  23 #  include <sys/time.h>
  24 # else
  25 #  include <time.h>
  26 # endif
  27 #endif
  28
  29 #include <sys/wait.h>
  30 #include <string.h>
  31 #include <limits.h>
  32 #include "citadel.h"
  33 #include "server.h"
  34 #include "sysdep_decls.h"
  35 #include "citserver.h"
  36 #include "support.h"
  37 #include "config.h"
  38 #include "serv_extensions.h"
  39 #include "room_ops.h"
  40 #include "policy.h"
  41 #include "database.h"
  42 #include "msgbase.h"
  43 #include "serv_ldap.h"
  44 #include "vcard.h"
  45 #include "tools.h"
  46
  47 #ifdef HAVE_LDAP
  48
  49 #include <ldap.h>
  50
  51 LDAP *dirserver = NULL;
  52
  53 /*
  54  * LDAP connector cleanup function
  55  */
  56 void serv_ldap_cleanup(void)
  57 {
  58         if (!dirserver) return;
  59
  60         lprintf(CTDL_INFO, "Unbinding from directory server\n");
  61         ldap_unbind(dirserver);
  62         dirserver = NULL;
  63 }
  64
  65
  66
  67 /*
  68  * Create the root node.  If it's already there, so what?
  69  */
  70 void CtdlCreateLdapRoot(void) {
  71         char *dc_values[2];
  72         char *objectClass_values[3];
  73         LDAPMod dc, objectClass;
  74         LDAPMod *mods[3];
  75         char topdc[SIZ];
  76         int i;
  77
  78         /* We just want the top-level dc, not the whole hierarchy */
  79         strcpy(topdc, config.c_ldap_base_dn);
  80         for (i=0; i<strlen(topdc); ++i) {
  81                 if (topdc[i] == ',') topdc[i] = 0;
  82         }
  83         for (i=0; i<strlen(topdc); ++i) {
  84                 if (topdc[i] == '=') strcpy(topdc, &topdc[i+1]);
  85         }
  86
  87         /* Set up the transaction */
  88         dc.mod_op               = LDAP_MOD_ADD;
  89         dc.mod_type             = "dc";
  90         dc_values[0]            = topdc;
  91         dc_values[1]            = NULL;
  92         dc.mod_values           = dc_values;
  93         objectClass.mod_op      = LDAP_MOD_ADD;
  94         objectClass.mod_type    = "objectClass";
  95         objectClass_values[0]   = "top";
  96         objectClass_values[1]   = "domain";
  97         objectClass_values[2]   = NULL;
  98         objectClass.mod_values  = objectClass_values;
  99         mods[0] = &dc;
 100         mods[1] = &objectClass;
 101         mods[2] = NULL;
 102
 103         /* Perform the transaction */
 104         lprintf(CTDL_DEBUG, "Setting up Base DN node...\n");
 105         begin_critical_section(S_LDAP);
 106         i = ldap_add_s(dirserver, config.c_ldap_base_dn, mods);
 107         end_critical_section(S_LDAP);
 108
 109         if (i != LDAP_SUCCESS) {
 110                 lprintf(CTDL_CRIT, "ldap_add_s() failed: %s (%d)\n",
 111                         ldap_err2string(i), i);
 112         }
 113 }
 114
 115
 116 /*
 117  * Create an OU node representing a Citadel host.
 118  */
 119 void CtdlCreateHostOU(char *host) {
 120         char *dc_values[2];
 121         char *objectClass_values[3];
 122         LDAPMod dc, objectClass;
 123         LDAPMod *mods[3];
 124         int i;
 125         char dn[SIZ];
 126
 127         /* The DN is this OU plus the base. */
 128         snprintf(dn, sizeof dn, "ou=%s,%s", host, config.c_ldap_base_dn);
 129
 130         /* Set up the transaction */
 131         dc.mod_op               = LDAP_MOD_ADD;
 132         dc.mod_type             = "ou";
 133         dc_values[0]            = host;
 134         dc_values[1]            = NULL;
 135         dc.mod_values           = dc_values;
 136         objectClass.mod_op      = LDAP_MOD_ADD;
 137         objectClass.mod_type    = "objectClass";
 138         objectClass_values[0]   = "top";
 139         objectClass_values[1]   = "organizationalUnit";
 140         objectClass_values[2]   = NULL;
 141         objectClass.mod_values  = objectClass_values;
 142         mods[0] = &dc;
 143         mods[1] = &objectClass;
 144         mods[2] = NULL;
 145
 146         /* Perform the transaction */
 147         lprintf(CTDL_DEBUG, "Setting up Host OU node...\n");
 148         begin_critical_section(S_LDAP);
 149         i = ldap_add_s(dirserver, dn, mods);
 150         end_critical_section(S_LDAP);
 151
 152         /* ignore the error -- it's ok if it already exists
 153         if (i != LDAP_SUCCESS) {
 154                 lprintf(CTDL_ERR, "ldap_add_s() failed: %s (%d)\n",
 155                         ldap_err2string(i), i);
 156         }
 157         */
 158 }
 159
 160
 161
 162
 163
 164
 165
 166
 167 void CtdlConnectToLdap(void) {
 168         int i;
 169         int ldap_version = 3;
 170
 171         lprintf(CTDL_INFO, "Connecting to LDAP server %s:%d...\n",
 172                 config.c_ldap_host, config.c_ldap_port);
 173
 174         dirserver = ldap_init(config.c_ldap_host, config.c_ldap_port);
 175         if (dirserver == NULL) {
 176                 lprintf(CTDL_CRIT, "Could not connect to %s:%d : %s\n",
 177                         config.c_ldap_host,
 178                         config.c_ldap_port,
 179                         strerror(errno));
 180                 return;
 181         }
 182
 183         ldap_set_option(dirserver, LDAP_OPT_PROTOCOL_VERSION, &ldap_version);
 184
 185         lprintf(CTDL_INFO, "Binding to %s\n", config.c_ldap_bind_dn);
 186
 187         i = ldap_simple_bind_s(dirserver,
 188                                 config.c_ldap_bind_dn,
 189                                 config.c_ldap_bind_pw
 190         );
 191         if (i != LDAP_SUCCESS) {
 192                 lprintf(CTDL_CRIT, "Cannot bind: %s (%d)\n", ldap_err2string(i), i);
 193                 dirserver = NULL;       /* FIXME disconnect from ldap */
 194                 return;
 195         }
 196
 197         CtdlCreateLdapRoot();
 198 }
 199
 200
 201 /*
 202  * vCard-to-LDAP conversions.
 203  *
 204  * If 'op' is set to V2L_WRITE, then write
 205  * (add, or change if already exists) a directory entry to the
 206  * LDAP server, based on the information supplied in a vCard.
 207  *
 208  * If 'op' is set to V2L_DELETE, then delete the entry from LDAP.
 209  */
 210 void ctdl_vcard_to_ldap(struct CtdlMessage *msg, int op) {
 211         struct vCard *v = NULL;
 212         int i, j;
 213         char this_dn[SIZ];
 214         LDAPMod **attrs = NULL;
 215         int num_attrs = 0;
 216         int num_emails = 0;
 217         int alias_attr = (-1);
 218         int num_phones = 0;
 219         int phone_attr = (-1);
 220         int have_addr = 0;
 221         int have_cn = 0;
 222
 223         char givenname[SIZ];
 224         char sn[SIZ];
 225         char uid[SIZ];
 226         char street[SIZ];
 227         char city[SIZ];
 228         char state[SIZ];
 229         char zipcode[SIZ];
 230         char calFBURL[SIZ];
 231
 232         if (dirserver == NULL) return;
 233         if (msg == NULL) return;
 234         if (msg->cm_fields['M'] == NULL) return;
 235         if (msg->cm_fields['A'] == NULL) return;
 236         if (msg->cm_fields['N'] == NULL) return;
 237
 238         /* Initialize variables */
 239         strcpy(givenname, "");
 240         strcpy(sn, "");
 241         strcpy(calFBURL, "");
 242
 243         sprintf(this_dn, "cn=%s,ou=%s,%s",
 244                 msg->cm_fields['A'],
 245                 msg->cm_fields['N'],
 246                 config.c_ldap_base_dn
 247         );
 248
 249         sprintf(uid, "%s@%s",
 250                 msg->cm_fields['A'],
 251                 msg->cm_fields['N']
 252         );
 253
 254         /* Are we just deleting?  If so, it's simple... */
 255         if (op == V2L_DELETE) {
 256                 lprintf(CTDL_DEBUG, "Calling ldap_delete_s()\n");
 257                 begin_critical_section(S_LDAP);
 258                 i = ldap_delete_s(dirserver, this_dn);
 259                 end_critical_section(S_LDAP);
 260                 if (i != LDAP_SUCCESS) {
 261                         lprintf(CTDL_ERR, "ldap_delete_s() failed: %s (%d)\n",
 262                                 ldap_err2string(i), i);
 263                 }
 264                 return;
 265         }
 266
 267         /*
 268          * If we get to this point then it must be a V2L_WRITE operation.
 269          */
 270
 271         /* First make sure the OU for the user's home Citadel host is created */
 272         CtdlCreateHostOU(msg->cm_fields['N']);
 273
 274         /* The first LDAP attribute will be an 'objectclass' list.  Citadel
 275          * doesn't do anything with this.  It's just there for compatibility
 276          * with Kolab.
 277          */
 278         num_attrs = 1;
 279         attrs = malloc( (sizeof(LDAPMod *) * num_attrs) );
 280         attrs[0] = malloc(sizeof(LDAPMod));
 281         memset(attrs[0], 0, sizeof(LDAPMod));
 282         attrs[0]->mod_op        = LDAP_MOD_ADD;
 283         attrs[0]->mod_type      = "objectclass";
 284         attrs[0]->mod_values    = malloc(3 * sizeof(char *));
 285         attrs[0]->mod_values[0] = strdup("inetOrgPerson");
 286         attrs[0]->mod_values[1] = NULL;
 287
 288         /* Convert the vCard fields to LDAP properties */
 289         v = vcard_load(msg->cm_fields['M']);
 290         if (v->numprops) for (i=0; i<(v->numprops); ++i) if (striplt(v->prop[i].value), strlen(v->prop[i].value) > 0) {
 291
 292                 if (!strcasecmp(v->prop[i].name, "n")) {
 293                         extract_token(sn,               v->prop[i].value, 0, ';');
 294                         extract_token(givenname,        v->prop[i].value, 1, ';');
 295                 }
 296
 297                 if (!strcasecmp(v->prop[i].name, "fn")) {
 298                         attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 299                         attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 300                         memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 301                         attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 302                         attrs[num_attrs-1]->mod_type            = "cn";
 303                         attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 304                         attrs[num_attrs-1]->mod_values[0]       = strdup(v->prop[i].value);
 305                         attrs[num_attrs-1]->mod_values[1]       = NULL;
 306                         have_cn = 1;
 307                 }
 308
 309                 if (!strcasecmp(v->prop[i].name, "title")) {
 310                         attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 311                         attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 312                         memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 313                         attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 314                         attrs[num_attrs-1]->mod_type            = "title";
 315                         attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 316                         attrs[num_attrs-1]->mod_values[0]       = strdup(v->prop[i].value);
 317                         attrs[num_attrs-1]->mod_values[1]       = NULL;
 318                 }
 319
 320                 if (!strcasecmp(v->prop[i].name, "org")) {
 321                         attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 322                         attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 323                         memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 324                         attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 325                         attrs[num_attrs-1]->mod_type            = "o";
 326                         attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 327                         attrs[num_attrs-1]->mod_values[0]       = strdup(v->prop[i].value);
 328                         attrs[num_attrs-1]->mod_values[1]       = NULL;
 329                 }
 330
 331                 if ( (!strcasecmp(v->prop[i].name, "adr"))
 332                    ||(!strncasecmp(v->prop[i].name, "adr;", 4)) ) {
 333                         /* Unfortunately, we can only do a single address */
 334                         if (!have_addr) {
 335                                 have_addr = 1;
 336                                 strcpy(street, "");
 337                                 extract_token(&street[strlen(street)],
 338                                         v->prop[i].value, 0, ';'); /* po box */
 339                                 strcat(street, " ");
 340                                 extract_token(&street[strlen(street)],
 341                                         v->prop[i].value, 1, ';'); /* extend addr */
 342                                 strcat(street, " ");
 343                                 extract_token(&street[strlen(street)],
 344                                         v->prop[i].value, 2, ';'); /* street */
 345                                 striplt(street);
 346                                 extract_token(city, v->prop[i].value, 3, ';');
 347                                 extract_token(state, v->prop[i].value, 4, ';');
 348                                 extract_token(zipcode, v->prop[i].value, 5, ';');
 349
 350                                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 351                                 attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 352                                 memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 353                                 attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 354                                 attrs[num_attrs-1]->mod_type            = "street";
 355                                 attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 356                                 attrs[num_attrs-1]->mod_values[0]       = strdup(street);
 357                                 attrs[num_attrs-1]->mod_values[1]       = NULL;
 358
 359                                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 360                                 attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 361                                 memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 362                                 attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 363                                 attrs[num_attrs-1]->mod_type            = "l";
 364                                 attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 365                                 attrs[num_attrs-1]->mod_values[0]       = strdup(city);
 366                                 attrs[num_attrs-1]->mod_values[1]       = NULL;
 367
 368                                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 369                                 attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 370                                 memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 371                                 attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 372                                 attrs[num_attrs-1]->mod_type            = "st";
 373                                 attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 374                                 attrs[num_attrs-1]->mod_values[0]       = strdup(state);
 375                                 attrs[num_attrs-1]->mod_values[1]       = NULL;
 376
 377                                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 378                                 attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 379                                 memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 380                                 attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 381                                 attrs[num_attrs-1]->mod_type            = "postalcode";
 382                                 attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 383                                 attrs[num_attrs-1]->mod_values[0]       = strdup(zipcode);
 384                                 attrs[num_attrs-1]->mod_values[1]       = NULL;
 385                         }
 386                 }
 387
 388                 if ( (!strcasecmp(v->prop[i].name, "tel"))
 389                    ||(!strncasecmp(v->prop[i].name, "tel;", 4)) ) {
 390                         ++num_phones;
 391                         /* The first 'tel' property creates the 'telephoneNumber' attribute */
 392                         if (num_phones == 1) {
 393                                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 394                                 phone_attr = num_attrs-1;
 395                                 attrs[phone_attr] = malloc(sizeof(LDAPMod));
 396                                 memset(attrs[phone_attr], 0, sizeof(LDAPMod));
 397                                 attrs[phone_attr]->mod_op               = LDAP_MOD_ADD;
 398                                 attrs[phone_attr]->mod_type             = "telephoneNumber";
 399                                 attrs[phone_attr]->mod_values           = malloc(2 * sizeof(char *));
 400                                 attrs[phone_attr]->mod_values[0]        = strdup(v->prop[i].value);
 401                                 attrs[phone_attr]->mod_values[1]        = NULL;
 402                         }
 403                         /* Subsequent 'tel' properties *add to* the 'telephoneNumber' attribute */
 404                         else {
 405                                 attrs[phone_attr]->mod_values = realloc(attrs[phone_attr]->mod_values,
 406                                                                      num_phones * sizeof(char *));
 407                                 attrs[phone_attr]->mod_values[num_phones-1]
 408                                                                         = strdup(v->prop[i].value);
 409                                 attrs[phone_attr]->mod_values[num_phones]
 410                                                                         = NULL;
 411                         }
 412                 }
 413
 414
 415                 if ( (!strcasecmp(v->prop[i].name, "email"))
 416                    ||(!strcasecmp(v->prop[i].name, "email;internet")) ) {
 417
 418                         ++num_emails;
 419                         lprintf(CTDL_DEBUG, "email addr %d\n", num_emails);
 420
 421                         /* The first email address creates the 'mail' attribute */
 422                         if (num_emails == 1) {
 423                                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 424                                 attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 425                                 memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 426                                 attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 427                                 attrs[num_attrs-1]->mod_type            = "mail";
 428                                 attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 429                                 attrs[num_attrs-1]->mod_values[0]       = strdup(v->prop[i].value);
 430                                 attrs[num_attrs-1]->mod_values[1]       = NULL;
 431                         }
 432                         /* The second email address creates the 'alias' attribute */
 433                         else if (num_emails == 2) {
 434                                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 435                                 alias_attr = num_attrs-1;
 436                                 attrs[alias_attr] = malloc(sizeof(LDAPMod));
 437                                 memset(attrs[alias_attr], 0, sizeof(LDAPMod));
 438                                 attrs[alias_attr]->mod_op               = LDAP_MOD_ADD;
 439                                 attrs[alias_attr]->mod_type             = "alias";
 440                                 attrs[alias_attr]->mod_values           = malloc(2 * sizeof(char *));
 441                                 attrs[alias_attr]->mod_values[0]        = strdup(v->prop[i].value);
 442                                 attrs[alias_attr]->mod_values[1]        = NULL;
 443                         }
 444                         /* Subsequent email addresses *add to* the 'alias' attribute */
 445                         else if (num_emails > 2) {
 446                                 attrs[alias_attr]->mod_values = realloc(attrs[alias_attr]->mod_values,
 447                                                                      num_emails * sizeof(char *));
 448                                 attrs[alias_attr]->mod_values[num_emails-2]
 449                                                                         = strdup(v->prop[i].value);
 450                                 attrs[alias_attr]->mod_values[num_emails-1]
 451                                                                         = NULL;
 452                         }
 453
 454
 455                 }
 456
 457                 /* Calendar free/busy URL (take the first one we find, but if a subsequent
 458                  * one contains the "pref" designation then we go with that instead.)
 459                  */
 460                 if ( (!strcasecmp(v->prop[i].name, "fburl"))
 461                    ||(!strncasecmp(v->prop[i].name, "fburl;", 6)) ) {
 462                         if ( (strlen(calFBURL) == 0)
 463                            || (!strncasecmp(v->prop[i].name, "fburl;pref", 10)) ) {
 464                                 safestrncpy(calFBURL, v->prop[i].value, sizeof calFBURL);
 465                         }
 466                 }
 467
 468         }
 469         vcard_free(v);  /* Don't need this anymore. */
 470
 471         /* "sn" (surname) based on info in vCard */
 472         attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 473         attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 474         memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 475         attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 476         attrs[num_attrs-1]->mod_type            = "sn";
 477         attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 478         attrs[num_attrs-1]->mod_values[0]       = strdup(sn);
 479         attrs[num_attrs-1]->mod_values[1]       = NULL;
 480
 481         /* "givenname" (first name) based on info in vCard */
 482         if (strlen(givenname) == 0) strcpy(givenname, "_");
 483         if (strlen(sn) == 0) strcpy(sn, "_");
 484         attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 485         attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 486         memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 487         attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 488         attrs[num_attrs-1]->mod_type            = "givenname";
 489         attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 490         attrs[num_attrs-1]->mod_values[0]       = strdup(givenname);
 491         attrs[num_attrs-1]->mod_values[1]       = NULL;
 492
 493         /* "uid" is a Kolab compatibility thing.  We just do cituser@citnode */
 494         attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 495         attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 496         memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 497         attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 498         attrs[num_attrs-1]->mod_type            = "uid";
 499         attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 500         attrs[num_attrs-1]->mod_values[0]       = strdup(uid);
 501         attrs[num_attrs-1]->mod_values[1]       = NULL;
 502
 503         /* Add a "cn" (Common Name) attribute based on the user's screen name,
 504          * but only there was no 'fn' (full name) property in the vCard
 505          */
 506         if (!have_cn) {
 507                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 508                 attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 509                 memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 510                 attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 511                 attrs[num_attrs-1]->mod_type            = "cn";
 512                 attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 513                 attrs[num_attrs-1]->mod_values[0]       = strdup(msg->cm_fields['A']);
 514                 attrs[num_attrs-1]->mod_values[1]       = NULL;
 515         }
 516
 517         /* Add a "calFBURL" attribute if a calendar free/busy URL exists */
 518         if (strlen(calFBURL) > 0) {
 519                 attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 520                 attrs[num_attrs-1] = malloc(sizeof(LDAPMod));
 521                 memset(attrs[num_attrs-1], 0, sizeof(LDAPMod));
 522                 attrs[num_attrs-1]->mod_op              = LDAP_MOD_ADD;
 523                 attrs[num_attrs-1]->mod_type            = "calFBURL";
 524                 attrs[num_attrs-1]->mod_values          = malloc(2 * sizeof(char *));
 525                 attrs[num_attrs-1]->mod_values[0]       = strdup(calFBURL);
 526                 attrs[num_attrs-1]->mod_values[1]       = NULL;
 527         }
 528
 529         /* The last attribute must be a NULL one. */
 530         attrs = realloc(attrs, (sizeof(LDAPMod *) * ++num_attrs) );
 531         attrs[num_attrs - 1] = NULL;
 532
 533         lprintf(CTDL_DEBUG, "Calling ldap_add_s()\n");
 534         begin_critical_section(S_LDAP);
 535         i = ldap_add_s(dirserver, this_dn, attrs);
 536         end_critical_section(S_LDAP);
 537
 538         /* If the entry already exists, repopulate it instead */
 539         if (i == LDAP_ALREADY_EXISTS) {
 540                 for (j=0; j<(num_attrs-1); ++j) {
 541                         attrs[j]->mod_op = LDAP_MOD_REPLACE;
 542                 }
 543                 lprintf(CTDL_DEBUG, "Calling ldap_modify_s()\n");
 544                 begin_critical_section(S_LDAP);
 545                 i = ldap_modify_s(dirserver, this_dn, attrs);
 546                 end_critical_section(S_LDAP);
 547         }
 548
 549         if (i != LDAP_SUCCESS) {
 550                 lprintf(CTDL_ERR, "ldap_add_s() failed: %s (%d)\n",
 551                         ldap_err2string(i), i);
 552         }
 553
 554         lprintf(CTDL_DEBUG, "Freeing attributes\n");
 555         /* Free the attributes */
 556         for (i=0; i<num_attrs; ++i) {
 557                 if (attrs[i] != NULL) {
 558
 559                         /* First, free the value strings */
 560                         if (attrs[i]->mod_values != NULL) {
 561                                 for (j=0; attrs[i]->mod_values[j] != NULL; ++j) {
 562                                         free(attrs[i]->mod_values[j]);
 563                                 }
 564                         }
 565
 566                         /* Free the value strings pointer list */
 567                         if (attrs[i]->mod_values != NULL) {
 568                                 free(attrs[i]->mod_values);
 569                         }
 570
 571                         /* Now free the LDAPMod struct itself. */
 572                         free(attrs[i]);
 573                 }
 574         }
 575         free(attrs);
 576         lprintf(CTDL_DEBUG, "LDAP write operation complete.\n");
 577 }
 578
 579
 580 #endif                          /* HAVE_LDAP */
 581
 582
 583 /*
 584  * Initialize the LDAP connector module ... or don't, if we don't have LDAP.
 585  */
 586 char *serv_ldap_init(void)
 587 {
 588 #ifdef HAVE_LDAP
 589         CtdlRegisterCleanupHook(serv_ldap_cleanup);
 590
 591         if (strlen(config.c_ldap_host) > 0) {
 592                 CtdlConnectToLdap();
 593         }
 594
 595 #endif                          /* HAVE_LDAP */
 596         return "$Id$";
 597 }