src/ldif.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2001-2012 Match Grun and the Claws Mail team
   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 /*
  21  * Functions necessary to access LDIF files (LDAP Data Interchange Format
  22  * files).
  23  */
  24
  25 #include <glib.h>
  26 #include <glib/gi18n.h>
  27 #include <string.h>
  28 #include <sys/stat.h>
  29
  30 #include "mgutils.h"
  31 #include "ldif.h"
  32 #include "addritem.h"
  33 #include "addrcache.h"
  34
  35 #include "utils.h"
  36
  37 #define LDIF_SEP_TAG    ':'
  38 #define LDIF_LANG_TAG   ';'
  39
  40 /**
  41  * Create new object.
  42  * \return Initialized LDIF file object.
  43  */
  44 LdifFile *ldif_create() {
  45         LdifFile *ldifFile;
  46         ldifFile = g_new0( LdifFile, 1 );
  47         ldifFile->path = NULL;
  48         ldifFile->file = NULL;
  49         ldifFile->hashFields = g_hash_table_new( g_str_hash, g_str_equal );
  50         ldifFile->tempList = NULL;
  51         ldifFile->dirtyFlag = TRUE;
  52         ldifFile->accessFlag = FALSE;
  53         ldifFile->retVal = MGU_SUCCESS;
  54         ldifFile->cbProgress = NULL;
  55         ldifFile->importCount = 0;
  56         return ldifFile;
  57 }
  58
  59 /**
  60  * Specify full file specification of LDIF file.
  61  * \param ldifFile LDIF import control object.
  62  * \param value    Value of access flag.
  63  */
  64 void ldif_set_file( LdifFile *ldifFile, const gchar *value ) {
  65         cm_return_if_fail( ldifFile != NULL );
  66
  67         if( ldifFile->path ) {
  68                 if( strcmp( ldifFile->path, value ) != 0 )
  69                         ldifFile->dirtyFlag = TRUE;
  70         }
  71         else {
  72                 ldifFile->dirtyFlag = TRUE;
  73         }
  74         ldifFile->path = mgu_replace_string( ldifFile->path, value );
  75         g_strstrip( ldifFile->path );
  76         ldifFile->importCount = 0;
  77 }
  78
  79 /**
  80  * Set the file access indicator.
  81  * \param ldifFile LDIF import control object.
  82  * \param value    File specification.
  83  */
  84 void ldif_set_accessed( LdifFile *ldifFile, const gboolean value ) {
  85         cm_return_if_fail( ldifFile != NULL );
  86         ldifFile->accessFlag = value;
  87 }
  88
  89 /**
  90  * Create field record object.
  91  * \return Initialized LDIF field object.
  92  */
  93 static Ldif_FieldRec *ldif_create_fieldrec( const gchar *field ) {
  94         Ldif_FieldRec *rec = g_new0( Ldif_FieldRec, 1 );
  95         rec->tagName = g_strdup( field );
  96         rec->userName = NULL;
  97         rec->reserved = FALSE;
  98         rec->selected = FALSE;
  99         return rec;
 100 }
 101
 102 /**
 103  * Free field record object.
 104  * \param rec LDIF field object.
 105  */
 106 static void ldif_free_fieldrec( Ldif_FieldRec *rec ) {
 107         if( rec ) {
 108                 g_free( rec->tagName );
 109                 g_free( rec->userName );
 110                 rec->tagName = NULL;
 111                 rec->userName = NULL;
 112                 rec->reserved = FALSE;
 113                 rec->selected = FALSE;
 114                 g_free( rec );
 115         }
 116 }
 117
 118 /**
 119  * Set user name for field record.
 120  * \param rec   LDIF field object.
 121  * \param value User name to set. Note that reserved fields cannot be
 122  *              named.
 123  */
 124 void ldif_field_set_name( Ldif_FieldRec *rec, const gchar *value ) {
 125         cm_return_if_fail( rec != NULL );
 126
 127         if( ! rec->reserved ) {
 128                 rec->userName = mgu_replace_string( rec->userName, value );
 129                 g_strstrip( rec->userName );
 130         }
 131 }
 132
 133 /**
 134  * Specify selection for field record.
 135  * \param rec   LDIF field object.
 136  * \param value Set to <i>TRUE</i> to select field. Note that reserved
 137  *              fields cannot be unselected.
 138  */
 139 void ldif_field_set_selected( Ldif_FieldRec *rec, const gboolean value ) {
 140         cm_return_if_fail( rec != NULL );
 141
 142         if( ! rec->reserved ) {
 143                 rec->selected = value;
 144         }
 145 }
 146
 147 /**
 148  * Toggle selection for field record. Note that reserved fields cannot be
 149  * toggled.
 150  * \param rec   LDIF field object.
 151  */
 152 void ldif_field_toggle( Ldif_FieldRec *rec ) {
 153         cm_return_if_fail( rec != NULL );
 154
 155         if( ! rec->reserved ) {
 156                 rec->selected = !rec->selected;
 157         }
 158 }
 159
 160 /**
 161  * Free hash table entry visitor function.
 162  * \param  key   Key.
 163  * \param  value Value (the LDIF field record).
 164  * \param  data  User data.
 165  * \return <code>-1</code>.
 166 */
 167 static gint ldif_hash_free_vis( gpointer key, gpointer value, gpointer data ) {
 168         ldif_free_fieldrec( ( Ldif_FieldRec * ) value );
 169         return -1;
 170 }
 171
 172 /**
 173  * Free up object by releasing internal memory.
 174  * \param ldifFile LDIF import control object.
 175  */
 176 void ldif_free( LdifFile *ldifFile ) {
 177         cm_return_if_fail( ldifFile != NULL );
 178
 179         /* Close file */
 180         if( ldifFile->file ) fclose( ldifFile->file );
 181
 182         /* Free internal stuff */
 183         g_free( ldifFile->path );
 184
 185         /* Free field list */
 186         g_hash_table_foreach_remove( ldifFile->hashFields, ldif_hash_free_vis, NULL );
 187         g_hash_table_destroy( ldifFile->hashFields );
 188         ldifFile->hashFields = NULL;
 189
 190         /* Clear pointers */
 191         ldifFile->file = NULL;
 192         ldifFile->path = NULL;
 193         ldifFile->retVal = MGU_SUCCESS;
 194         ldifFile->tempList = NULL;
 195         ldifFile->dirtyFlag = FALSE;
 196         ldifFile->accessFlag = FALSE;
 197         ldifFile->cbProgress = NULL;
 198
 199         /* Now release file object */
 200         g_free( ldifFile );
 201 }
 202
 203 /**
 204  * Open file for read.
 205  * \param  ldifFile LDIF import control object.
 206  * \return <i>TRUE</i> if file opened successfully.
 207  */
 208 static gint ldif_open_file( LdifFile* ldifFile ) {
 209         /* g_print( "Opening file\n" ); */
 210         if( ldifFile->path ) {
 211                 ldifFile->file = g_fopen( ldifFile->path, "rb" );
 212                 if( ! ldifFile->file ) {
 213                         /* g_print( "can't open %s\n", ldifFile->path ); */
 214                         ldifFile->retVal = MGU_OPEN_FILE;
 215                         return ldifFile->retVal;
 216                 }
 217         }
 218         else {
 219                 /* g_print( "file not specified\n" ); */
 220                 ldifFile->retVal = MGU_NO_FILE;
 221                 return ldifFile->retVal;
 222         }
 223
 224         /* Setup a buffer area */
 225         ldifFile->retVal = MGU_SUCCESS;
 226         return ldifFile->retVal;
 227 }
 228
 229 /**
 230  * Close file.
 231  * \param  ldifFile LDIF import control object.
 232  */
 233 static void ldif_close_file( LdifFile *ldifFile ) {
 234         cm_return_if_fail( ldifFile != NULL );
 235         if( ldifFile->file ) fclose( ldifFile->file );
 236         ldifFile->file = NULL;
 237 }
 238
 239 /**
 240  * Read line of text from file.
 241  * \param  ldifFile LDIF import control object.
 242  * \return ptr to buffer where line starts.
 243  */
 244 static gchar *ldif_get_line( LdifFile *ldifFile ) {
 245         gchar *buf = g_malloc(LDIFBUFSIZE);
 246         gint ch;
 247         int i = 0;
 248         int cur_alloc = LDIFBUFSIZE;
 249
 250         if( feof( ldifFile->file ) ) {
 251                 g_free(buf);
 252                 return NULL;
 253         }
 254
 255         while( i < cur_alloc-1 ) {
 256                 ch = fgetc( ldifFile->file );
 257                 if (ferror( ldifFile->file ))
 258                         ldifFile->retVal = MGU_ERROR_READ;
 259                 if( ch == '\0' || ch == EOF ) {
 260                         if( i == 0 ) return NULL;
 261                         break;
 262                 }
 263 #if HAVE_DOSISH_SYSTEM
 264 #else
 265                 if( ch == '\r' )
 266                         continue;
 267 #endif
 268                 if( ch == '\n' )
 269                         break;
 270                 buf[i] = ch;
 271                 i++;
 272                 if (i == cur_alloc-1 && cur_alloc < LDIFBUFSIZE * 32) {
 273                         cur_alloc += LDIFBUFSIZE;
 274                         buf = g_realloc(buf, cur_alloc);
 275                 }
 276         }
 277         buf[i] = '\0';
 278
 279         /* Return a copy of buffer */
 280         return g_strdup( buf );
 281 }
 282
 283 /**
 284  * Parse tag name from line buffer.
 285  * \param  line Buffer.
 286  * \param  flag64 Base-64 encoder flag.
 287  * \return Buffer containing the tag name, or NULL if no delimiter char found.
 288  *         If a double delimiter (::) is found, flag64 is set.
 289  */
 290 static gchar *ldif_get_tagname( char* line, gboolean *flag64 ) {
 291         gint len = 0;
 292         gchar *tag = NULL;
 293         gchar *lptr = line;
 294         gchar *sptr = NULL;
 295
 296         while( *lptr++ ) {
 297                 /* Check for language tag */
 298                 if( *lptr == LDIF_LANG_TAG ) {
 299                         if( sptr == NULL ) sptr = lptr;
 300                 }
 301
 302                 /* Check for delimiter */
 303                 if( *lptr == LDIF_SEP_TAG ) {
 304                         if( sptr ) {
 305                                 len = sptr - line;
 306                         }
 307                         else {
 308                                 len = lptr - line;
 309                         }
 310
 311                         /* Base-64 encoding? */
 312                         if( * ++lptr == LDIF_SEP_TAG ) *flag64 = TRUE;
 313
 314                         tag = g_strndup( line, len+1 );
 315                         tag[ len ] = '\0';
 316                         return tag;
 317                 }
 318         }
 319         return tag;
 320 }
 321
 322 /**
 323  * Parse tag value from line buffer.
 324  * \param  line Buffer.
 325  * \return Buffer containing the tag value. Empty string is returned if
 326  *         no delimiter char found.
 327  */
 328 static gchar *ldif_get_tagvalue( gchar* line ) {
 329         gchar *value = NULL;
 330         gchar *start = NULL;
 331         gchar *lptr;
 332         gint len = 0;
 333
 334         for( lptr = line; *lptr; lptr++ ) {
 335                 if( *lptr == LDIF_SEP_TAG ) {
 336                         if( ! start )
 337                                 start = lptr + 1;
 338                 }
 339         }
 340         if( start ) {
 341                 if( *start == LDIF_SEP_TAG ) start++;
 342                 len = lptr - start;
 343                 value = g_strndup( start, len+1 );
 344                 g_strstrip( value );
 345         }
 346         else {
 347                 /* Ensure that we get an empty string */
 348                 value = g_strndup( "", 1 );
 349         }
 350         value[ len ] = '\0';
 351         return value;
 352 }
 353
 354 /**
 355  * Parsed address data record.
 356  */
 357 typedef struct _Ldif_ParsedRec_ Ldif_ParsedRec;
 358 struct _Ldif_ParsedRec_ {
 359         GSList *listCName;
 360         GSList *listFName;
 361         GSList *listLName;
 362         GSList *listNName;
 363         GSList *listAddress;
 364         GSList *listID;
 365         GSList *userAttr;
 366 };
 367
 368 /**
 369  * User attribute data record.
 370  */
 371 typedef struct _Ldif_UserAttr_ Ldif_UserAttr;
 372 struct _Ldif_UserAttr_ {
 373         gchar *name;
 374         gchar *value;
 375 };
 376
 377 /**
 378  * Build an address list entry and append to list of address items in the
 379  * address cache. Name is formatted as "<first-name> <last-name>".
 380  * \param ldifFile LDIF import control object.
 381  * \param rec      LDIF field object.
 382  * \param cache    Address cache to be populated with data.
 383  */
 384 static void ldif_build_items(
 385                 LdifFile *ldifFile, Ldif_ParsedRec *rec, AddressCache *cache )
 386 {
 387         GSList *nodeFirst;
 388         GSList *nodeAddress;
 389         GSList *nodeAttr;
 390         gchar *firstName = NULL, *lastName = NULL, *fullName = NULL;
 391         gchar *nickName = NULL;
 392         gint iLen = 0, iLenT = 0;
 393         ItemPerson *person;
 394         ItemEMail *email;
 395
 396         nodeAddress = rec->listAddress;
 397 //      if( nodeAddress == NULL ) return;
 398
 399         /* Find longest first name in list */
 400         nodeFirst = rec->listFName;
 401         while( nodeFirst ) {
 402                 if( firstName == NULL ) {
 403                         firstName = nodeFirst->data;
 404                         iLen = strlen( firstName );
 405                 }
 406                 else {
 407                         if( ( iLenT = strlen( nodeFirst->data ) ) > iLen ) {
 408                                 firstName = nodeFirst->data;
 409                                 iLen = iLenT;
 410                         }
 411                 }
 412                 nodeFirst = g_slist_next( nodeFirst );
 413         }
 414
 415         /* Format name */
 416         if( rec->listLName ) {
 417                 lastName = rec->listLName->data;
 418         }
 419
 420         if( firstName ) {
 421                 if( lastName ) {
 422                         fullName = g_strdup_printf(
 423                                 "%s %s", firstName, lastName );
 424                 }
 425                 else {
 426                         fullName = g_strdup_printf( "%s", firstName );
 427                 }
 428         }
 429         else {
 430                 if( lastName ) {
 431                         fullName = g_strdup_printf( "%s", lastName );
 432                 }
 433         }
 434
 435         if (!fullName || strlen(fullName) == 0) {
 436                 g_free(fullName);
 437                 fullName = NULL;
 438                 if (rec->listCName)
 439                         fullName = g_strdup(rec->listCName->data);
 440         }
 441
 442         if( fullName ) {
 443                 g_strchug( fullName ); g_strchomp( fullName );
 444         }
 445
 446         if( rec->listNName ) {
 447                 nickName = rec->listNName->data;
 448         }
 449
 450         person = addritem_create_item_person();
 451         addritem_person_set_common_name( person, fullName );
 452         addritem_person_set_first_name( person, firstName );
 453         addritem_person_set_last_name( person, lastName );
 454         addritem_person_set_nick_name( person, nickName );
 455         addrcache_id_person( cache, person );
 456         addrcache_add_person( cache, person );
 457         ++ldifFile->importCount;
 458
 459         /* Add address item */
 460         while( nodeAddress ) {
 461                 email = addritem_create_item_email();
 462                 addritem_email_set_address( email, nodeAddress->data );
 463                 addrcache_id_email( cache, email );
 464                 addrcache_person_add_email( cache, person, email );
 465                 nodeAddress = g_slist_next( nodeAddress );
 466         }
 467         g_free( fullName );
 468         fullName = firstName = lastName = NULL;
 469
 470         /* Add user attributes */
 471         nodeAttr = rec->userAttr;
 472         while( nodeAttr ) {
 473                 Ldif_UserAttr *attr = nodeAttr->data;
 474                 UserAttribute *attrib = addritem_create_attribute();
 475                 addritem_attrib_set_name( attrib, attr->name );
 476                 addritem_attrib_set_value( attrib, attr->value );
 477                 addritem_person_add_attribute( person, attrib );
 478                 nodeAttr = g_slist_next( nodeAttr );
 479         }
 480         nodeAttr = NULL;
 481 }
 482
 483 /**
 484  * Add selected field as user attribute.
 485  * \param rec       LDIF field object.
 486  * \param tagName   LDIF tag name.
 487  * \param tagValue  Data value.
 488  * \param hashField Hash table to populate.
 489  */
 490 static void ldif_add_user_attr(
 491                 Ldif_ParsedRec *rec, gchar *tagName, gchar *tagValue,
 492                 GHashTable *hashField )
 493 {
 494         Ldif_FieldRec *fld = NULL;
 495         Ldif_UserAttr *attr = NULL;
 496         gchar *name;
 497
 498         fld = g_hash_table_lookup( hashField, tagName );
 499         if( fld ) {
 500                 if( ! fld->selected ) return;
 501
 502                 name = fld->tagName;
 503                 if( fld->userName ) {
 504                         name = fld->userName;
 505                 }
 506                 attr = g_new0( Ldif_UserAttr, 1 );
 507                 attr->name = g_strdup( name );
 508                 attr->value = g_strdup( tagValue );
 509                 rec->userAttr = g_slist_append( rec->userAttr, attr );
 510         }
 511 }
 512
 513 /**
 514  * Add value to parsed data.
 515  * \param rec       LDIF field object.
 516  * \param tagName   LDIF tag name.
 517  * \param tagValue  Data value.
 518  * \param hashField Hash table to populate.
 519  */
 520 static void ldif_add_value(
 521                Ldif_ParsedRec *rec, gchar *tagName, gchar *tagValue,
 522                GHashTable *hashField )
 523 {
 524         gchar *nm, *val;
 525
 526         nm = g_utf8_strdown( tagName, -1 );
 527         if( tagValue ) {
 528                 val = g_strdup( tagValue );
 529         }
 530         else {
 531                 val = g_strdup( "" );
 532         }
 533         g_strstrip( val );
 534
 535         if( g_utf8_collate( nm, g_utf8_strdown( LDIF_TAG_COMMONNAME, -1 ) ) == 0 ) {
 536                 rec->listCName = g_slist_append( rec->listCName, val );
 537         }
 538         else if( g_utf8_collate( nm, g_utf8_strdown( LDIF_TAG_FIRSTNAME, -1 ) ) == 0 ) {
 539                 rec->listFName = g_slist_append( rec->listFName, val );
 540         }
 541         else if( g_utf8_collate( nm, g_utf8_strdown( LDIF_TAG_LASTNAME, -1 ) ) == 0 ) {
 542                 rec->listLName = g_slist_append( rec->listLName, val );
 543         }
 544         else if( g_utf8_collate( nm, g_utf8_strdown( LDIF_TAG_NICKNAME, -1 ) ) == 0 ) {
 545                 rec->listNName = g_slist_append( rec->listNName, val );
 546         }
 547         else if( g_utf8_collate( nm, g_utf8_strdown( LDIF_TAG_EMAIL, -1 ) ) == 0 ) {
 548                 rec->listAddress = g_slist_append( rec->listAddress, val );
 549         }
 550         else {
 551                 /* Add field as user attribute */
 552                 ldif_add_user_attr( rec, tagName, tagValue, hashField );
 553         }
 554         g_free( nm );
 555 }
 556
 557 /**
 558  * Clear parsed data record.
 559  * \param rec LDIF field object.
 560  */
 561 static void ldif_clear_rec( Ldif_ParsedRec *rec ) {
 562         GSList *list;
 563
 564         /* Free up user attributes */
 565         list = rec->userAttr;
 566         while( list ) {
 567                 Ldif_UserAttr *attr = list->data;
 568                 g_free( attr->name );
 569                 g_free( attr->value );
 570                 g_free( attr );
 571                 list = g_slist_next( list );
 572         }
 573         g_slist_free( rec->userAttr );
 574
 575         g_slist_free( rec->listCName );
 576         g_slist_free( rec->listFName );
 577         g_slist_free( rec->listLName );
 578         g_slist_free( rec->listNName );
 579         g_slist_free( rec->listAddress );
 580         g_slist_free( rec->listID );
 581
 582         rec->userAttr = NULL;
 583         rec->listCName = NULL;
 584         rec->listFName = NULL;
 585         rec->listLName = NULL;
 586         rec->listNName = NULL;
 587         rec->listAddress = NULL;
 588         rec->listID = NULL;
 589 }
 590
 591 /**
 592  * Read file data into address cache.
 593  * Note that one LDIF record identifies one entity uniquely with the
 594  * distinguished name (dn) tag. Each person can have multiple E-Mail
 595  * addresses. Also, each person can have many common name (cn) tags.
 596  *
 597  * \param  ldifFile LDIF import control object.
 598  * \param  cache    Address cache to be populated with data.
 599  */
 600 static void ldif_read_file( LdifFile *ldifFile, AddressCache *cache ) {
 601         gchar *tagName = NULL, *tagValue = NULL;
 602         gchar *lastTag = NULL, *fullValue = NULL;
 603         GSList *listValue = NULL;
 604         gboolean flagEOF = FALSE, flagEOR = FALSE;
 605         gboolean flag64 = FALSE, last64 = FALSE;
 606         Ldif_ParsedRec *rec;
 607         long posEnd = 0L;
 608         long posCur = 0L;
 609         GHashTable *hashField;
 610         gchar *out;
 611         gsize len;
 612
 613         hashField = ldifFile->hashFields;
 614         rec = g_new0( Ldif_ParsedRec, 1 );
 615         ldif_clear_rec( rec );
 616
 617         /* Find EOF for progress indicator */
 618         fseek( ldifFile->file, 0L, SEEK_END );
 619         posEnd = ftell( ldifFile->file );
 620         fseek( ldifFile->file, 0L, SEEK_SET );
 621
 622         while( ! flagEOF ) {
 623                 gchar *line =  ldif_get_line( ldifFile );
 624
 625                 posCur = ftell( ldifFile->file );
 626                 if( ldifFile->cbProgress ) {
 627                         /* Call progress indicator */
 628                         ( ldifFile->cbProgress ) ( ldifFile, & posEnd, & posCur );
 629                 }
 630
 631                 flag64 = FALSE;
 632                 if( line == NULL ) {
 633                         flagEOF = flagEOR = TRUE;
 634                 }
 635                 else if( *line == '\0' ) {
 636                         flagEOR = TRUE;
 637                 }
 638
 639                 if( flagEOR ) {
 640                         /* EOR, Output address data */
 641                         if( lastTag ) {
 642                                 /* Save record */
 643                                 fullValue = mgu_list_coalesce( listValue );
 644                                 if (fullValue && last64) {
 645                                         gchar *tmp = g_base64_decode_zero(fullValue, &len);
 646                                         g_free(fullValue);
 647                                         fullValue = tmp;
 648                                 }
 649
 650                                 ldif_add_value( rec, lastTag, fullValue, hashField );
 651                                 /* ldif_print_record( rec, stdout ); */
 652                                 ldif_build_items( ldifFile, rec, cache );
 653                                 ldif_clear_rec( rec );
 654                                 g_free( lastTag );
 655                                 mgu_free_list( listValue );
 656                                 g_free(fullValue);
 657                                 lastTag = NULL;
 658                                 listValue = NULL;
 659                                 last64 = FALSE;
 660                         }
 661                 }
 662                 if( line ) {
 663                         flagEOR = FALSE;
 664                         if( *line == ' ' ) {
 665                                 /* Continuation line */
 666                                 listValue = g_slist_append(
 667                                         listValue, g_strdup( line+1 ) );
 668                         }
 669                         else if( *line == '=' ) {
 670                                 /* Base-64 encoded continuation field */
 671                                 listValue = g_slist_append(
 672                                         listValue, g_strdup( line ) );
 673                         }
 674                         else {
 675                                 /* Parse line */
 676                                 tagName = ldif_get_tagname( line, &flag64 );
 677                                 if( tagName ) {
 678                                         tagValue = ldif_get_tagvalue( line );
 679                                         if( tagValue ) {
 680                                                 if( lastTag ) {
 681                                                         /* Save data */
 682                                                         fullValue =
 683                                                                 mgu_list_coalesce( listValue );
 684                                                         if (fullValue && last64) {
 685                                                                 gchar *tmp = g_base64_decode_zero(fullValue, &len);
 686                                                                 g_free(fullValue);
 687                                                                 fullValue = tmp;
 688                                                         }
 689                                                         /* Base-64 encoded data */
 690                                                         /*
 691                                                         if( last64 ) {
 692                                                                 ldif_dump_b64( fullValue );
 693                                                         }
 694                                                         */
 695
 696                                                         ldif_add_value(
 697                                                                 rec, lastTag, fullValue,
 698                                                                 hashField );
 699                                                         g_free( lastTag );
 700                                                         mgu_free_list( listValue );
 701                                                         lastTag = NULL;
 702                                                         listValue = NULL;
 703                                                 }
 704
 705                                                 lastTag = g_strdup( tagName );
 706                                                 listValue = g_slist_append(
 707                                                         listValue,
 708                                                         g_strdup( tagValue ) );
 709                                                 g_free( tagValue );
 710                                                 last64 = flag64;
 711                                         }
 712                                         g_free( tagName );
 713                                 }
 714                         }
 715                 }
 716                 g_free( line );
 717         }
 718
 719         /* Release data */
 720         ldif_clear_rec( rec );
 721         g_free( rec );
 722         g_free( lastTag );
 723         mgu_free_list( listValue );
 724 }
 725
 726 /**
 727  * Add list of field names to hash table.
 728  * \param table Hashtable.
 729  * \param list  List of fields.
 730  */
 731 static void ldif_hash_add_list( GHashTable *table, GSList *list ) {
 732         GSList *node = list;
 733
 734         /* mgu_print_list( list, stdout ); */
 735         while( node ) {
 736                 gchar *tag = node->data;
 737                 if( ! g_hash_table_lookup( table, tag ) ) {
 738                         Ldif_FieldRec *rec = NULL;
 739                         gchar *key = g_utf8_strdown( tag, -1 );
 740
 741                         rec = ldif_create_fieldrec( tag );
 742                         if( g_utf8_collate( key, LDIF_TAG_DN ) == 0 ) {
 743                                 rec->reserved = rec->selected = TRUE;
 744                                 rec->userName = g_strdup( "dn" );
 745                         }
 746                         else if( g_utf8_collate( key, g_utf8_strdown( LDIF_TAG_COMMONNAME, -1 ) ) == 0 ) {
 747                                 rec->reserved = rec->selected = TRUE;
 748                                 rec->userName = g_strdup( _( "Display Name" ) );
 749                         }
 750                         else if( g_utf8_collate( key, g_utf8_strdown( LDIF_TAG_FIRSTNAME, -1 ) ) == 0 ) {
 751                                 rec->reserved = rec->selected = TRUE;
 752                                 rec->userName = g_strdup( _( "First Name" ) );
 753                         }
 754                         else if( g_utf8_collate( key, g_utf8_strdown( LDIF_TAG_LASTNAME, -1 ) ) == 0 ) {
 755                                 rec->reserved = rec->selected = TRUE;
 756                                 rec->userName = g_strdup( _( "Last Name" ) );
 757                         }
 758                         else if( g_utf8_collate( key, g_utf8_strdown( LDIF_TAG_NICKNAME, -1 ) ) == 0 ) {
 759                                 rec->reserved = rec->selected = TRUE;
 760                                 rec->userName = g_strdup( _( "Nick Name" ) );
 761                         }
 762                         else if( g_utf8_collate( key, g_utf8_strdown( LDIF_TAG_EMAIL, -1 ) ) == 0 ) {
 763                                 rec->reserved = rec->selected = TRUE;
 764                                 rec->userName = g_strdup( _( "Email Address" ) );
 765                         }
 766                         g_hash_table_insert( table, key, rec );
 767                 }
 768                 node = g_slist_next( node );
 769         }
 770 }
 771
 772 /**
 773  * Sorted list comparison function.
 774  * \param  ptr1 First field.
 775  * \param  ptr2 Second field.
 776  * \return <code>-1, 0, +1</code> if first record less than, equal,
 777  *         greater than second.
 778  */
 779 static gint ldif_field_compare( gconstpointer ptr1, gconstpointer ptr2 ) {
 780         const Ldif_FieldRec *rec1 = ptr1;
 781         const Ldif_FieldRec *rec2 = ptr2;
 782
 783         if( rec1->reserved ) {
 784                 if( ! rec2->reserved ) {
 785                         return +1;
 786                 }
 787         }
 788         else {
 789                 if( rec2->reserved ) {
 790                         return -1;
 791                 }
 792         }
 793         return g_utf8_collate( rec1->tagName, rec2->tagName );
 794 }
 795
 796 /*
 797  * Append hash table entry to list - visitor function.
 798  * \param key   Key.
 799  * \param value Data value.
 800  * \param data  User data (the LDIF import control object).
 801  */
 802 static void ldif_hash2list_vis( gpointer key, gpointer value, gpointer data ) {
 803         LdifFile *ldf = data;
 804         ldf->tempList =
 805                 g_list_insert_sorted( ldf->tempList, value, ldif_field_compare );
 806 }
 807
 808 /**
 809  * Read tag names for file data.
 810  * \param  ldifFile LDIF import control object.
 811  */
 812 static void ldif_read_tag_list( LdifFile *ldifFile ) {
 813         gchar *tagName = NULL;
 814         GSList *listTags = NULL;
 815         gboolean flagEOF = FALSE, flagEOR = FALSE, flagMail = FALSE;
 816         gboolean flag64 = FALSE;
 817         long posEnd = 0L;
 818         long posCur = 0L;
 819
 820         /* Clear hash table */
 821         g_hash_table_foreach_remove(
 822                 ldifFile->hashFields, ldif_hash_free_vis, NULL );
 823
 824         /* Find EOF for progress indicator */
 825         fseek( ldifFile->file, 0L, SEEK_END );
 826         posEnd = ftell( ldifFile->file );
 827         fseek( ldifFile->file, 0L, SEEK_SET );
 828
 829         if (posEnd == 0) {
 830                 ldifFile->retVal = MGU_EOF;
 831                 return;
 832         }
 833
 834         /* Process file */
 835         while( ! flagEOF ) {
 836                 gchar *line = ldif_get_line( ldifFile );
 837                 posCur = ftell( ldifFile->file );
 838                 if( ldifFile->cbProgress ) {
 839                         /* Call progress indicator */
 840                         ( ldifFile->cbProgress ) ( ldifFile, & posEnd, & posCur );
 841                 }
 842
 843                 flag64 = FALSE;
 844                 if( line == NULL ) {
 845                         flagEOF = flagEOR = TRUE;
 846                 }
 847                 else if( *line == '\0' ) {
 848                         flagEOR = TRUE;
 849                 }
 850
 851                 if( flagEOR ) {
 852                         /* EOR, Output address data */
 853                         /* Save field list to hash table */
 854                         if( flagMail ) {
 855                                 ldif_hash_add_list(
 856                                         ldifFile->hashFields, listTags );
 857                         }
 858                         mgu_free_list( listTags );
 859                         listTags = NULL;
 860                         flagMail = FALSE;
 861                 }
 862                 if( line ) {
 863                         flagEOR = FALSE;
 864                         if( *line == ' ' ) {
 865                                 /* Continuation line */
 866                         }
 867                         else if( *line == '=' ) {
 868                                 /* Base-64 encoded continuation field */
 869                         }
 870                         else {
 871                                 /* Parse line */
 872                                 tagName = ldif_get_tagname( line, &flag64 );
 873                                 if( tagName ) {
 874                                         /* Add tag to list */
 875                                         listTags = g_slist_append( listTags, tagName );
 876
 877                                         if( g_utf8_collate(
 878                                                 tagName, LDIF_TAG_EMAIL ) == 0 )
 879                                         {
 880                                                 flagMail = TRUE;
 881                                         }
 882                                 } else {
 883                                         g_strstrip(line);
 884                                         if (*line != '\0') {
 885                                                 debug_print("ldif: bad format: '%s'\n", line);
 886                                                 ldifFile->retVal = MGU_BAD_FORMAT;
 887                                         }
 888                                 }
 889                         }
 890                 }
 891                 g_free( line );
 892         }
 893
 894         /* Release data */
 895         mgu_free_list( listTags );
 896         listTags = NULL;
 897 }
 898
 899 /**
 900  * Read file into list. Main entry point
 901  * \param  ldifFile LDIF import control object.
 902  * \param  cache    Address cache to load.
 903  * \return Status code.
 904  */
 905 gint ldif_import_data( LdifFile *ldifFile, AddressCache *cache ) {
 906         cm_return_val_if_fail( ldifFile != NULL, MGU_BAD_ARGS );
 907         ldifFile->retVal = MGU_SUCCESS;
 908         addrcache_clear( cache );
 909         cache->dataRead = FALSE;
 910         ldif_open_file( ldifFile );
 911         if( ldifFile->retVal == MGU_SUCCESS ) {
 912                 /* Read data into the cache */
 913                 ldif_read_file( ldifFile, cache );
 914                 ldif_close_file( ldifFile );
 915
 916                 /* Mark cache */
 917                 cache->modified = FALSE;
 918                 cache->dataRead = TRUE;
 919         }
 920         return ldifFile->retVal;
 921 }
 922
 923 /**
 924  * Process entire file reading list of unique fields. List of fields may be
 925  * accessed with the <code>ldif_get_fieldlist()</code> function.
 926  * \param  ldifFile LDIF import control object.
 927  * \return Status code.
 928  */
 929 gint ldif_read_tags( LdifFile *ldifFile ) {
 930         cm_return_val_if_fail( ldifFile != NULL, MGU_BAD_ARGS );
 931         ldifFile->retVal = MGU_SUCCESS;
 932         if( ldifFile->dirtyFlag ) {
 933                 ldif_open_file( ldifFile );
 934                 if( ldifFile->retVal == MGU_SUCCESS ) {
 935                         /* Read data into the cache */
 936                         ldif_read_tag_list( ldifFile );
 937                         ldif_close_file( ldifFile );
 938                         ldifFile->dirtyFlag = FALSE;
 939                         ldifFile->accessFlag = TRUE;
 940                 }
 941         }
 942         return ldifFile->retVal;
 943 }
 944
 945 /**
 946  * Return list of fields for LDIF file.
 947  * \param  ldifFile LDIF import control object.
 948  * \return Linked list of <code>Ldif_FieldRec</code> objects. This list may be
 949  *         <code>g_free()</code>. Note that the objects in the list should not
 950  *         be freed since they refer to objects inside the internal cache.
 951  *         These objects will be freed when LDIF file object is freed.
 952  */
 953 GList *ldif_get_fieldlist( LdifFile *ldifFile ) {
 954         GList *list = NULL;
 955
 956         cm_return_val_if_fail( ldifFile != NULL, NULL );
 957         if( ldifFile->hashFields ) {
 958                 ldifFile->tempList = NULL;
 959                 g_hash_table_foreach( ldifFile->hashFields, ldif_hash2list_vis, ldifFile );
 960                 list = ldifFile->tempList;
 961                 ldifFile->tempList = NULL;
 962         }
 963         return list;
 964 }
 965
 966 /**
 967  * Output LDIF name-value pair to stream. Only non-empty names and values will
 968  * be output to file.
 969  * \param stream File output stream.
 970  * \param name   Name.
 971  * \param value  Data value.
 972  * \return <i>TRUE</i> if data output.
 973  */
 974 gboolean ldif_write_value( FILE *stream, const gchar *name, const gchar *value ) {
 975         if( name == NULL ) return FALSE;
 976         if( value == NULL ) return FALSE;
 977         if( strlen( name ) < 1 ) return FALSE;
 978         if( strlen( value ) < 1 ) return FALSE;
 979         fprintf( stream, "%s: ", name );
 980         fprintf( stream, "%s\n", value );
 981         return TRUE;
 982 }
 983
 984 /**
 985  * Output LDIF End of Record to stream.
 986  * \param stream File output stream.
 987  * \return <i>TRUE</i> if data output.
 988  */
 989 void ldif_write_eor( FILE *stream ) {
 990         /* Simple but caller should not need to know how to end record. */
 991         fprintf( stream, "\n" );
 992 }
 993
 994 /*
 995  * ============================================================================
 996  * End of Source.
 997  * ============================================================================
 998  */
 999