src/ldapctrl.c

   1 /*
   2  * Claws Mail -- a GTK based, lightweight, and fast e-mail client
   3  * Copyright (C) 2003-2022 the Claws Mail team and Match Grun
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 /*
  20  * Functions for LDAP control data.
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #  include "config.h"
  25 #include "claws-features.h"
  26 #endif
  27
  28 #ifdef USE_LDAP
  29
  30 #include <glib.h>
  31 #include <sys/time.h>
  32 #include <string.h>
  33
  34 #include "ldapctrl.h"
  35 #include "mgutils.h"
  36 #include "passwordstore.h"
  37 #include "editaddress_other_attributes_ldap.h"
  38 #include "common/utils.h"
  39 #include "common/quoted-printable.h"
  40
  41 /**
  42  * Create new LDAP control block object.
  43  * \return Initialized control object.
  44  */
  45 LdapControl *ldapctl_create( void ) {
  46         LdapControl *ctl;
  47
  48         ctl = g_new0( LdapControl, 1 );
  49         ctl->hostName = NULL;
  50         ctl->port = LDAPCTL_DFL_PORT;
  51         ctl->baseDN = NULL;
  52         ctl->bindDN = NULL;
  53         ctl->listCriteria = NULL;
  54         ctl->attribEMail = g_strdup( LDAPCTL_ATTR_EMAIL );
  55         ctl->attribCName = g_strdup( LDAPCTL_ATTR_COMMONNAME );
  56         ctl->attribFName = g_strdup( LDAPCTL_ATTR_GIVENNAME );
  57         ctl->attribLName = g_strdup( LDAPCTL_ATTR_SURNAME );
  58         ctl->attribDName = g_strdup( LDAPCTL_ATTR_DISPLAYNAME );
  59         ctl->maxEntries = LDAPCTL_MAX_ENTRIES;
  60         ctl->timeOut = LDAPCTL_DFL_TIMEOUT;
  61         ctl->maxQueryAge = LDAPCTL_DFL_QUERY_AGE;
  62         ctl->matchingOption = LDAPCTL_MATCH_BEGINWITH;
  63         ctl->version = 0;
  64         ctl->enableTLS = FALSE;
  65         ctl->enableSSL = FALSE;
  66
  67         /* Mutex to protect control block */
  68         ctl->mutexCtl = g_malloc0( sizeof( pthread_mutex_t ) );
  69         pthread_mutex_init( ctl->mutexCtl, NULL );
  70
  71         return ctl;
  72 }
  73
  74 /**
  75  * Specify hostname to be used.
  76  * \param ctl   Control object to process.
  77  * \param value Host name.
  78  */
  79 void ldapctl_set_host( LdapControl* ctl, const gchar *value ) {
  80         ctl->hostName = mgu_replace_string( ctl->hostName, value );
  81
  82         if ( ctl->hostName == NULL )
  83                 return;
  84
  85         g_strstrip( ctl->hostName );
  86         debug_print("setting hostname: %s\n", ctl->hostName);
  87 }
  88
  89 /**
  90  * Specify port to be used.
  91  * \param ctl  Control object to process.
  92  * \param value Port.
  93  */
  94 void ldapctl_set_port( LdapControl* ctl, const gint value ) {
  95         if( value > 0 ) {
  96                 ctl->port = value;
  97         }
  98         else {
  99                 ctl->port = LDAPCTL_DFL_PORT;
 100         }
 101         debug_print("setting port: %d\n", ctl->port);
 102 }
 103
 104 /**
 105  * Specify base DN to be used.
 106  * \param ctl  Control object to process.
 107  * \param value Base DN.
 108  */
 109 void ldapctl_set_base_dn( LdapControl* ctl, const gchar *value ) {
 110         ctl->baseDN = mgu_replace_string( ctl->baseDN, value );
 111
 112         if ( ctl->baseDN == NULL )
 113                 return;
 114
 115         g_strstrip( ctl->baseDN );
 116         debug_print("setting baseDN: %s\n", ctl->baseDN);
 117 }
 118
 119 /**
 120  * Specify bind DN to be used.
 121  * \param ctl  Control object to process.
 122  * \param value Bind DN.
 123  */
 124 void ldapctl_set_bind_dn( LdapControl* ctl, const gchar *value ) {
 125         ctl->bindDN = mgu_replace_string( ctl->bindDN, value );
 126
 127         if ( ctl->bindDN == NULL )
 128                 return;
 129
 130         g_strstrip( ctl->bindDN );
 131         debug_print("setting bindDN: %s\n", ctl->bindDN);
 132 }
 133
 134 /**
 135  * Specify maximum number of entries to retrieve.
 136  * \param ctl  Control object to process.
 137  * \param value Maximum entries.
 138  */
 139 void ldapctl_set_max_entries( LdapControl* ctl, const gint value ) {
 140         if( value > 0 ) {
 141                 ctl->maxEntries = value;
 142         }
 143         else {
 144                 ctl->maxEntries = LDAPCTL_MAX_ENTRIES;
 145         }
 146         debug_print("setting maxEntries: %d\n", ctl->maxEntries);
 147 }
 148
 149 /**
 150  * Specify timeout value for LDAP operation (in seconds).
 151  * \param ctl  Control object to process.
 152  * \param value Timeout.
 153  */
 154 void ldapctl_set_timeout( LdapControl* ctl, const gint value ) {
 155         if( value > 0 ) {
 156                 ctl->timeOut = value;
 157         }
 158         else {
 159                 ctl->timeOut = LDAPCTL_DFL_TIMEOUT;
 160         }
 161         debug_print("setting timeOut: %d\n", ctl->timeOut);
 162 }
 163
 164 /**
 165  * Specify maximum age of query (in seconds) before query is retired.
 166  * \param ctl  Control object to process.
 167  * \param value Maximum age.
 168  */
 169 void ldapctl_set_max_query_age( LdapControl* ctl, const gint value ) {
 170         if( value > LDAPCTL_MAX_QUERY_AGE ) {
 171                 ctl->maxQueryAge = LDAPCTL_MAX_QUERY_AGE;
 172         }
 173         else if( value < 1 ) {
 174                 ctl->maxQueryAge = LDAPCTL_DFL_QUERY_AGE;
 175         }
 176         else {
 177                 ctl->maxQueryAge = value;
 178         }
 179         debug_print("setting maxAge: %d\n", ctl->maxQueryAge);
 180 }
 181
 182 /**
 183  * Specify matching option to be used for searches.
 184  * \param ctl   Control object to process.
 185  * \param value Matching option, as follows:
 186  * <ul>
 187  * <li><code>LDAPCTL_MATCH_BEGINWITH</code> for "begins with" search</li>
 188  * <li><code>LDAPCTL_MATCH_CONTAINS</code> for "contains" search</li>
 189  * </ul>
 190  */
 191 void ldapctl_set_matching_option( LdapControl* ctl, const gint value ) {
 192         if( value < LDAPCTL_MATCH_BEGINWITH ) {
 193                 ctl->matchingOption = LDAPCTL_MATCH_BEGINWITH;
 194         }
 195         else if( value > LDAPCTL_MATCH_CONTAINS ) {
 196                 ctl->matchingOption = LDAPCTL_MATCH_BEGINWITH;
 197         }
 198         else {
 199                 ctl->matchingOption = value;
 200         }
 201         debug_print("setting matchingOption: %d\n", ctl->matchingOption);
 202 }
 203
 204 /**
 205  * Specify TLS option.
 206  * \param ctl   Control object to process.
 207  * \param value <i>TRUE</i> to enable TLS.
 208  */
 209 void ldapctl_set_tls( LdapControl* ctl, const gboolean value ) {
 210 #if (defined USE_LDAP_TLS || defined G_OS_WIN32)
 211         ctl->enableTLS = value;
 212         debug_print("setting STARTTLS: %d\n", ctl->enableTLS);
 213 #endif
 214 }
 215
 216 void ldapctl_set_ssl( LdapControl* ctl, const gboolean value ) {
 217 #if (defined USE_LDAP_TLS || defined G_OS_WIN32)
 218         ctl->enableSSL = value;
 219         debug_print("setting TLS: %d\n", ctl->enableSSL);
 220 #endif
 221 }
 222
 223 /**
 224  * Return search criteria list.
 225  * \param  ctl  Control data object.
 226  * \return Linked list of character strings containing LDAP attribute names to
 227  *         use for a search. This should not be modified directly. Use the
 228  *         <code>ldapctl_set_criteria_list()</code>,
 229  *         <code>ldapctl_criteria_list_clear()</code> and
 230  *         <code>ldapctl_criteria_list_add()</code> functions for this purpose.
 231  */
 232 GList *ldapctl_get_criteria_list( const LdapControl* ctl ) {
 233         cm_return_val_if_fail( ctl != NULL, NULL );
 234         return ctl->listCriteria;
 235 }
 236
 237 /**
 238  * Clear list of LDAP search attributes.
 239  * \param  ctl  Control data object.
 240  */
 241 void ldapctl_criteria_list_clear( LdapControl *ctl ) {
 242         cm_return_if_fail( ctl != NULL );
 243         g_list_free_full( ctl->listCriteria, g_free );
 244         ctl->listCriteria = NULL;
 245 }
 246
 247 /**
 248  * Add LDAP attribute to criteria list.
 249  * \param ctl  Control object to process.
 250  * \param attr Attribute name to append. If not NULL and unique, a copy will
 251  *             be appended to the list.
 252  */
 253 void ldapctl_criteria_list_add( LdapControl *ctl, gchar *attr ) {
 254         cm_return_if_fail( ctl != NULL );
 255         if( attr != NULL ) {
 256                 if( !g_list_find_custom( ctl->listCriteria, attr,
 257                                         (GCompareFunc)g_utf8_collate ) ) {
 258                         debug_print("adding to criteria list: %s\n", attr);
 259                         ctl->listCriteria = g_list_append(
 260                                 ctl->listCriteria, g_strdup( attr ) );
 261                 }
 262         }
 263 }
 264
 265 /**
 266  * Clear LDAP server member variables.
 267  * \param ctl Control object to clear.
 268  */
 269 static void ldapctl_clear( LdapControl *ctl ) {
 270         cm_return_if_fail( ctl != NULL );
 271
 272         debug_print("clearing ldap controller members\n");
 273         /* Free internal stuff */
 274         g_free( ctl->hostName );
 275         g_free( ctl->baseDN );
 276         g_free( ctl->bindDN );
 277         g_free( ctl->attribEMail );
 278         g_free( ctl->attribCName );
 279         g_free( ctl->attribFName );
 280         g_free( ctl->attribLName );
 281         g_free( ctl->attribDName );
 282
 283         ldapctl_criteria_list_clear( ctl );
 284
 285         /* Clear pointers */
 286         ctl->hostName = NULL;
 287         ctl->port = 0;
 288         ctl->baseDN = NULL;
 289         ctl->bindDN = NULL;
 290         ctl->attribEMail = NULL;
 291         ctl->attribCName = NULL;
 292         ctl->attribFName = NULL;
 293         ctl->attribLName = NULL;
 294         ctl->attribDName = NULL;
 295         ctl->maxEntries = 0;
 296         ctl->timeOut = 0;
 297         ctl->maxQueryAge = 0;
 298         ctl->matchingOption = LDAPCTL_MATCH_BEGINWITH;
 299         ctl->version = 0;
 300         ctl->enableTLS = FALSE;
 301         ctl->enableSSL = FALSE;
 302 }
 303
 304 /**
 305  * Free up LDAP server interface object by releasing internal memory.
 306  * \param ctl Control object to free.
 307  */
 308 void ldapctl_free( LdapControl *ctl ) {
 309         cm_return_if_fail( ctl != NULL );
 310
 311         debug_print("releasing requested memory for ldap controller\n");
 312         /* Free internal stuff */
 313         ldapctl_clear( ctl );
 314
 315         /* Free the mutex */
 316         pthread_mutex_destroy( ctl->mutexCtl );
 317         g_free( ctl->mutexCtl );
 318         ctl->mutexCtl = NULL;
 319
 320         /* Now release LDAP control object */
 321         g_free( ctl );
 322 }
 323
 324 #ifdef DEBUG_LDAP
 325 /**
 326  * Display object to specified stream.
 327  * \param ctl    Control object to process.
 328  * \param stream Output stream.
 329  */
 330 void ldapctl_print( const LdapControl *ctl, FILE *stream ) {
 331         cm_return_if_fail( ctl != NULL );
 332         gchar *pwd;
 333
 334         pthread_mutex_lock( ctl->mutexCtl );
 335         fprintf( stream, "LdapControl:\n" );
 336         fprintf( stream, "host name: '%s'\n", ctl->hostName?ctl->hostName:"null" );
 337         fprintf( stream, "     port: %d\n",   ctl->port );
 338         fprintf( stream, "  base dn: '%s'\n", ctl->baseDN?ctl->baseDN:"null" );
 339         fprintf( stream, "  bind dn: '%s'\n", ctl->bindDN?ctl->bindDN:"null" );
 340         pwd = passwd_store_get(PWS_CORE, "LDAP", ctl->hostName);
 341         fprintf( stream, "bind pass: '%s'\n", pwd?pwd:"null" );
 342         if (pwd != NULL && strlen(pwd) > 0)
 343                 memset(pwd, 0, strlen(pwd));
 344         g_free(pwd);
 345         fprintf( stream, "attr mail: '%s'\n", ctl->attribEMail?ctl->attribEMail:"null" );
 346         fprintf( stream, "attr comn: '%s'\n", ctl->attribCName?ctl->attribCName:"null" );
 347         fprintf( stream, "attr frst: '%s'\n", ctl->attribFName?ctl->attribFName:"null" );
 348         fprintf( stream, "attr last: '%s'\n", ctl->attribLName?ctl->attribLName:"null" );
 349         fprintf( stream, "attr disn: '%s'\n", ctl->attribDName?ctl->attribDName:"null" );
 350         fprintf( stream, "max entry: %d\n",   ctl->maxEntries );
 351         fprintf( stream, "  timeout: %d\n",   ctl->timeOut );
 352         fprintf( stream, "  max age: %d\n",   ctl->maxQueryAge );
 353         fprintf( stream, "match opt: %d\n",   ctl->matchingOption );
 354         fprintf( stream, "  version: %d\n",   ctl->version );
 355         fprintf( stream, " STARTTLS: %s\n",   ctl->enableTLS ? "yes" : "no" );
 356         fprintf( stream, "  TLS: %s\n",   ctl->enableSSL ? "yes" : "no" );
 357         fprintf( stream, "crit list:\n" );
 358         if( ctl->listCriteria ) {
 359                 mgu_print_dlist( ctl->listCriteria, stream );
 360         }
 361         else {
 362                 fprintf( stream, "\t!!!none!!!\n" );
 363         }
 364         pthread_mutex_unlock( ctl->mutexCtl );
 365 }
 366 #endif
 367
 368 /**
 369  * Copy member variables to specified object. Mutex lock object is
 370  * not copied.
 371  * \param ctlFrom Object to copy from.
 372  * \param ctlTo   Destination object.
 373  */
 374 void ldapctl_copy( const LdapControl *ctlFrom, LdapControl *ctlTo ) {
 375         GList *node;
 376
 377         cm_return_if_fail( ctlFrom != NULL );
 378         cm_return_if_fail( ctlTo != NULL );
 379
 380         debug_print("ldap controller copy\n");
 381         /* Lock both objects */
 382         pthread_mutex_lock( ctlFrom->mutexCtl );
 383         pthread_mutex_lock( ctlTo->mutexCtl );
 384
 385         /* Clear our destination */
 386         ldapctl_clear( ctlTo );
 387
 388         /* Copy strings */
 389         ctlTo->hostName = g_strdup( ctlFrom->hostName );
 390         ctlTo->baseDN = g_strdup( ctlFrom->baseDN );
 391         ctlTo->bindDN = g_strdup( ctlFrom->bindDN );
 392         ctlTo->attribEMail = g_strdup( ctlFrom->attribEMail );
 393         ctlTo->attribCName = g_strdup( ctlFrom->attribCName );
 394         ctlTo->attribFName = g_strdup( ctlFrom->attribFName );
 395         ctlTo->attribLName = g_strdup( ctlFrom->attribLName );
 396         ctlTo->attribDName = g_strdup( ctlFrom->attribDName );
 397
 398         /* Copy search criteria */
 399         node = ctlFrom->listCriteria;
 400         while( node ) {
 401                 ctlTo->listCriteria = g_list_append(
 402                         ctlTo->listCriteria, g_strdup( node->data ) );
 403                 node = g_list_next( node );
 404         }
 405
 406         /* Copy other members */
 407         ctlTo->port = ctlFrom->port;
 408         ctlTo->maxEntries = ctlFrom->maxEntries;
 409         ctlTo->timeOut = ctlFrom->timeOut;
 410         ctlTo->maxQueryAge = ctlFrom->maxQueryAge;
 411         ctlTo->matchingOption = ctlFrom->matchingOption;
 412         ctlTo->version = ctlFrom->version;
 413         ctlTo->enableTLS = ctlFrom->enableTLS;
 414         ctlTo->enableSSL = ctlFrom->enableSSL;
 415
 416         /* Unlock */
 417         pthread_mutex_unlock( ctlTo->mutexCtl );
 418         pthread_mutex_unlock( ctlFrom->mutexCtl );
 419 }
 420
 421 /**
 422  * Search criteria fragment - two terms - begin with (default).
 423  */
 424 static gchar *_criteria2BeginWith = "(&(givenName=%s*)(sn=%s*))";
 425
 426 /**
 427  * Search criteria fragment - two terms - contains.
 428  */
 429 static gchar *_criteria2Contains  = "(&(givenName=*%s*)(sn=*%s*))";
 430
 431 /**
 432  * Create an LDAP search criteria by parsing specified search term. The search
 433  * term may contain two names separated by the first embedded space found in
 434  * the search term. It is assumed that the two tokens are first name and last
 435  * name, or vice versa. An appropriate search criteria will be constructed.
 436  *
 437  * \param  searchTerm   Reference to search term to process.
 438  * \param  matchOption  Set to the following:
 439  * <ul>
 440  * <li><code>LDAPCTL_MATCH_BEGINWITH</code> for "begins with" search</li>
 441  * <li><code>LDAPCTL_MATCH_CONTAINS</code> for "contains" search</li>
 442  * </ul>
 443  *
 444  * \return Formatted search criteria, or <code>NULL</code> if there is no
 445  *         embedded spaces. The search term should be g_free() when no
 446  *         longer required.
 447  */
 448 static gchar *ldapctl_build_ldap_criteria(
 449                 const gchar *searchTerm, const gint matchOption )
 450 {
 451         gchar *p;
 452         gchar *t1;
 453         gchar *t2 = NULL;
 454         gchar *term;
 455         gchar *crit = NULL;
 456         gchar *criteriaFmt;
 457
 458         if( matchOption == LDAPCTL_MATCH_CONTAINS ) {
 459                 criteriaFmt = _criteria2Contains;
 460         }
 461         else {
 462                 criteriaFmt = _criteria2BeginWith;
 463         }
 464
 465         term = g_strdup( searchTerm );
 466         g_strstrip( term );
 467
 468         /* Find first space character */
 469         t1 = p = term;
 470         while( *p ) {
 471                 if( *p == ' ' ) {
 472                         *p = '\0';
 473                         t2 = g_strdup( 1 + p );
 474                         break;
 475                 }
 476                 p++;
 477         }
 478
 479         if( t2 ) {
 480                 /* Format search criteria */
 481                 gchar *p1, *p2;
 482
 483                 g_strstrip( t2 );
 484                 p1 = g_strdup_printf( criteriaFmt, t1, t2 );
 485                 p2 = g_strdup_printf( criteriaFmt, t2, t1 );
 486                 crit = g_strdup_printf( "(&(|%s%s)(mail=*))", p1, p2 );
 487
 488                 g_free( t2 );
 489                 g_free( p1 );
 490                 g_free( p2 );
 491         }
 492         g_free( term );
 493         debug_print("search criteria: %s\n", crit?crit:"null");
 494         return crit;
 495 }
 496
 497
 498 /**
 499  * Search criteria fragment - single term - begin with (default).
 500  */
 501 static gchar *_criteriaBeginWith = "(%s=%s*)";
 502
 503 /**
 504  * Search criteria fragment - single term - contains.
 505  */
 506 static gchar *_criteriaContains  = "(%s=*%s*)";
 507
 508 /**
 509  * Build a formatted LDAP search criteria string from criteria list.
 510  * \param ctl  Control object to process.
 511  * \param searchVal Value to search for.
 512  * \return Formatted string. Should be g_free() when done.
 513  */
 514 gchar *ldapctl_format_criteria( LdapControl *ctl, const gchar *searchVal ) {
 515         GList *node;
 516         gchar *p1, *p2, *retVal;
 517         gchar *criteriaFmt;
 518
 519         cm_return_val_if_fail( ctl != NULL, NULL );
 520         cm_return_val_if_fail( searchVal != NULL, NULL );
 521
 522         /* Test whether there are more that one search terms */
 523         retVal = ldapctl_build_ldap_criteria( searchVal, ctl->matchingOption );
 524         if( retVal ) return retVal;
 525
 526         if( ctl->matchingOption ==  LDAPCTL_MATCH_CONTAINS ) {
 527                 criteriaFmt = _criteriaContains;
 528         }
 529         else {
 530                 criteriaFmt = _criteriaBeginWith;
 531         }
 532
 533         /* No - just a simple search */
 534         /* p1 contains previous formatted criteria */
 535         /* p2 contains next formatted criteria */
 536         retVal = p1 = p2 = NULL;
 537         node = ctl->listCriteria;
 538         while( node ) {
 539                 gchar *attr, *tmp;
 540                 attr = node->data;
 541                 node = g_list_next( node );
 542
 543                 /* Switch pointers */
 544                 tmp = p1; p1 = p2; p2 = tmp;
 545
 546                 if( p1 ) {
 547                         /* Subsequent time through */
 548                         gchar *crit;
 549
 550                         debug_print("crit: %s\n", searchVal);
 551                         /* fix bug when doing a search any */
 552                         if (strcmp("*@", searchVal) == 0) {
 553                             crit = g_strdup_printf( "(%s=*)", attr );
 554                         }
 555                         else {
 556                             /* Format query criteria */
 557                             crit = g_strdup_printf( criteriaFmt, attr, searchVal );
 558                         }
 559
 560                         /* Append to existing criteria */
 561                         g_free( p2 );
 562                         p2 = g_strdup_printf( "(|%s%s)", p1, crit );
 563
 564                         g_free( crit );
 565                 }
 566                 else {
 567                         /* First time through - Format query criteria */
 568                         /* fix bug when doing a search any */
 569                         if (strcmp("*@", searchVal) == 0) {
 570                             p2 = g_strdup_printf( "(%s=*)", attr );
 571                         }
 572                         else {
 573                             p2 = g_strdup_printf( criteriaFmt, attr, searchVal );
 574                         }
 575                 }
 576         }
 577
 578         if( p2 == NULL ) {
 579                 /* Nothing processed - format a default attribute */
 580                 retVal = g_strdup_printf( "(%s=*)", LDAPCTL_ATTR_EMAIL );
 581         }
 582         else {
 583                 /* We have something - free up previous result */
 584                 retVal = p2;
 585         }
 586         if (p1)
 587                 g_free( p1 );
 588         debug_print("current search string: %s\n", retVal);
 589         return retVal;
 590 }
 591
 592 /**
 593  * Return array of pointers to attributes for LDAP query.
 594  * \param  ctl  Control object to process.
 595  * \return NULL terminated list.
 596  */
 597 char **ldapctl_attribute_array( LdapControl *ctl ) {
 598         char **ptrArray;
 599         GList *node;
 600         guint cnt, i;
 601         cm_return_val_if_fail( ctl != NULL, NULL );
 602
 603         node = ctl->listCriteria;
 604         cnt = g_list_length( ctl->listCriteria );
 605         ptrArray = g_new0( char *, 1 + cnt );
 606         i = 0;
 607         while( node ) {
 608                 ptrArray[ i++ ] = node->data;
 609                 /*debug_print("adding search attribute: %s\n", (gchar *) node->data);*/
 610                 node = g_list_next( node );
 611         }
 612         ptrArray[ i ] = NULL;
 613         return ptrArray;
 614 }
 615
 616 /**
 617  * Return array of pointers to attributes for LDAP query.
 618  * \param  ctl  Control object to process.
 619  * \return NULL terminated list.
 620  */
 621 char **ldapctl_full_attribute_array( LdapControl *ctl ) {
 622         char **ptrArray;
 623         GList *node, *def;
 624         GList *tmp = NULL;
 625         guint cnt, i;
 626         cm_return_val_if_fail( ctl != NULL, NULL );
 627
 628         def = ctl->listCriteria;
 629         while (def) {
 630                 tmp = g_list_append(tmp, g_strdup(def->data));
 631                 def = def->next;
 632         }
 633
 634         def = ldapctl_get_default_criteria_list();
 635         node = def;
 636
 637         while (node) {
 638                 if( g_list_find_custom(tmp, (gpointer)def->data,
 639                                 (GCompareFunc)g_strcmp0) == NULL) {
 640                         tmp = g_list_append(tmp, g_strdup(node->data));
 641                 }
 642                 node = node->next;
 643         }
 644
 645         g_list_free_full(def, g_free);
 646
 647         node = tmp;
 648         cnt = g_list_length( tmp );
 649         ptrArray = g_new0( char *, 1 + cnt);
 650         i = 0;
 651         while( node ) {
 652                 ptrArray[ i++ ] = node->data;
 653                 /*debug_print("adding search attribute: %s\n", (gchar *) node->data);*/
 654                 node = g_list_next( node );
 655         }
 656         g_list_free(tmp);
 657         ptrArray[ i ] = NULL;
 658         return ptrArray;
 659 }
 660
 661 /**
 662  * Free array of pointers allocated by ldapctl_criteria_array().
 663  * param ptrArray Array to clear.
 664  */
 665 void ldapctl_free_attribute_array( char **ptrArray ) {
 666         gint i;
 667
 668         /* Clear array to NULL's */
 669         for( i = 0; ptrArray[i] != NULL; i++ ) {
 670                 g_free(ptrArray[i]);
 671                 ptrArray[i] = NULL;
 672         }
 673         g_free( ptrArray );
 674 }
 675
 676 /**
 677  * Parse LDAP search string, building list of LDAP criteria attributes. This
 678  * may be used to convert an old style Sylpheed LDAP search criteria to the
 679  * new format. The old style uses a standard LDAP search string, for example:
 680  * <pre>
 681  *    (&(mail=*)(cn=%s*))
 682  * </pre>
 683  * This function extracts the two LDAP attributes <code>mail</code> and
 684  * <code>cn</code>, adding each to a list.
 685  *
 686  * \param ctl Control object to process.
 687  * \param criteria LDAP search criteria string.
 688  */
 689 void ldapctl_parse_ldap_search( LdapControl *ctl, gchar *criteria ) {
 690         gchar *ptr;
 691         gchar *pFrom;
 692         gchar *attrib;
 693         gint iLen;
 694
 695         cm_return_if_fail( ctl != NULL );
 696
 697         ldapctl_criteria_list_clear( ctl );
 698         if( criteria == NULL ) return;
 699
 700         pFrom = NULL;
 701         ptr = criteria;
 702         while( *ptr ) {
 703                 if( *ptr == '(' ) {
 704                         pFrom = 1 + ptr;
 705                 }
 706                 if( *ptr == '=' ) {
 707                         if( pFrom ) {
 708                                 iLen = ptr - pFrom;
 709                                 attrib = g_strndup( pFrom, iLen );
 710                                 g_strstrip( attrib );
 711                                 ldapctl_criteria_list_add( ctl, attrib );
 712                                 g_free( attrib );
 713                         }
 714                         pFrom = NULL;
 715                 }
 716                 ptr++;
 717         }
 718 }
 719
 720 /**
 721  * Return the default LDAP search criteria string.
 722  * \return Formatted string or <i>""</i>. Should be g_free() when done.
 723  */
 724 gchar *ldapctl_get_default_criteria() {
 725         gchar *retVal = g_strdup(LDAPCTL_DFL_ATTR_LIST);
 726         const gchar **attrs = ATTRIBUTE;
 727
 728         while (*attrs) {
 729                 gchar *tmp = g_strdup_printf("%s, %s", retVal, *attrs++);
 730                 g_free(retVal);
 731                 retVal = tmp;
 732         }
 733         debug_print("default search criteria: %s\n", retVal);
 734         return retVal;
 735 }
 736
 737 /**
 738  * Return the default LDAP search criteria list.
 739  * \return GList or <i>NULL</i>.
 740  */
 741 GList *ldapctl_get_default_criteria_list() {
 742         gchar *criteria, *item;
 743         gchar **c_list, **w_list;
 744         GList *attr_list = NULL;
 745
 746         criteria = ldapctl_get_default_criteria();
 747         c_list = g_strsplit(criteria, " ", 0);
 748         g_free(criteria);
 749         criteria = NULL;
 750         w_list = c_list;
 751         while ((criteria = *w_list++) != 0) {
 752                 /* copy string elimination <,> */
 753                 if (*w_list)
 754                         item = g_strndup(criteria, strlen(criteria) - 1);
 755                 else
 756                         item = g_strdup(criteria);
 757                 debug_print("adding attribute to list: %s\n", item);
 758                 attr_list = g_list_append(attr_list, item);
 759         }
 760         g_strfreev(c_list);
 761         return attr_list;
 762 }
 763
 764 /**
 765  * Compare to GList for equality.
 766  * \param l1 First GList
 767  * \param l2 Second GList
 768  * \Return TRUE or FALSE
 769  */
 770 gboolean ldapctl_compare_list(GList *l1, GList *l2) {
 771         gchar *first, *second;
 772         if (! l1 && ! l2)
 773                 return TRUE;
 774         if ((! l1 && l2) || (l1 && ! l2))
 775                 return FALSE;
 776         while (l1 && l2) {
 777                 first = (gchar *) l1->data;
 778                 second = (gchar *) l2->data;
 779                 /*debug_print("comparing: %s = %s\n", first, second);*/
 780                 if ( ! (first && second) || strcmp(first, second) != 0) {
 781                         return FALSE;
 782                 }
 783                 l1 = g_list_next(l1);
 784                 l2 = g_list_next(l2);
 785         }
 786         return TRUE;
 787 }
 788
 789 #endif  /* USE_LDAP */
 790
 791 /*
 792  * End of Source.
 793  */
 794