Sylpheed

/*

 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client

 * Copyright (C) 2001 Match Grun

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 */

/*

 * Functions necessary to access LDIF files (LDAP Data Interchange Format

 * files).

 */

#include <glib.h>

#include <string.h>

#include <sys/stat.h>

#include "mgutils.h"

#include "ldif.h"

#include "addritem.h"

#include "addrcache.h"

#include "base64.h"

#include "utils.h"

/*

* Create new object.

*/

LdifFile *ldif_create() {

        LdifFile *ldifFile;

        ldifFile = g_new0( LdifFile, 1 );

        ldifFile->path = NULL;

        ldifFile->file = NULL;

        ldifFile->bufptr = ldifFile->buffer;

        ldifFile->hashFields = g_hash_table_new( g_str_hash, g_str_equal );

        ldifFile->tempList = NULL;

        ldifFile->dirtyFlag = TRUE;

        ldifFile->accessFlag = FALSE;

        ldifFile->retVal = MGU_SUCCESS;

        ldifFile->cbProgress = NULL;

        ldifFile->importCount = 0;

        return ldifFile;

}

/*

* Properties...

*/

void ldif_set_file( LdifFile *ldifFile, const gchar *value ) {

        g_return_if_fail( ldifFile != NULL );

        if( ldifFile->path ) {

                if( strcmp( ldifFile->path, value ) != 0 )

                        ldifFile->dirtyFlag = TRUE;

        }

        else {

                ldifFile->dirtyFlag = TRUE;

        }

        ldifFile->path = mgu_replace_string( ldifFile->path, value );

        g_strstrip( ldifFile->path );

        ldifFile->importCount = 0;

}

void ldif_set_accessed( LdifFile *ldifFile, const gboolean value ) {

        g_return_if_fail( ldifFile != NULL );

        ldifFile->accessFlag = value;

}

/*

* Register a callback function. When called, the function will be passed

* the following arguments:

*        LdifFile object,

*        File size (long),

*        Current position (long)

* This can be used for a progress indicator.

*/

void ldif_set_callback( LdifFile *ldifFile, void *func ) {

        ldifFile->cbProgress = func;

}

/*

* Create field record object.

*/

static Ldif_FieldRec *ldif_create_fieldrec( gchar *field ) {

        Ldif_FieldRec *rec = g_new0( Ldif_FieldRec, 1 );

        rec->tagName = g_strdup( field );

        rec->userName = NULL;

        rec->reserved = FALSE;

        rec->selected = FALSE;

        return rec;

}

/*

* Free field record object.

*/

static void ldif_free_fieldrec( Ldif_FieldRec *rec ) {

        if( rec ) {

                g_free( rec->tagName );

                g_free( rec->userName );

                rec->tagName = NULL;

                rec->userName = NULL;

                rec->reserved = FALSE;

                rec->selected = FALSE;

                g_free( rec );

        }

}

/*

* Free hash table entry visitor function.

*/

static gint ldif_hash_free_vis( gpointer key, gpointer value, gpointer data ) {

        ldif_free_fieldrec( ( Ldif_FieldRec * ) value );

        value = NULL;

        key = NULL;

        return -1;

}

/*

* Free up object by releasing internal memory.

*/

void ldif_free( LdifFile *ldifFile ) {

        g_return_if_fail( ldifFile != NULL );

        /* Close file */

        if( ldifFile->file ) fclose( ldifFile->file );

        /* Free internal stuff */

        g_free( ldifFile->path );

        /* Free field list */

        g_hash_table_foreach_remove( ldifFile->hashFields, ldif_hash_free_vis, NULL );

        g_hash_table_destroy( ldifFile->hashFields );

        ldifFile->hashFields = NULL;

        /* Clear pointers */

        ldifFile->file = NULL;

        ldifFile->path = NULL;

        ldifFile->retVal = MGU_SUCCESS;

        ldifFile->tempList = NULL;

        ldifFile->dirtyFlag = FALSE;

        ldifFile->accessFlag = FALSE;

        ldifFile->cbProgress = NULL;

        /* Now release file object */

        g_free( ldifFile );

}

/*

* Display field record.

*/

void ldif_print_fieldrec( Ldif_FieldRec *rec, FILE *stream ) {

        fprintf( stream, "\ttag:\t%s", rec->reserved ? "yes" : "no" );

        fprintf( stream, "\t%s", rec->selected ? "yes" : "no" );

        fprintf( stream, "\t:%s:\t:%s:\n", rec->userName, rec->tagName );

}

/*

* Display field record.

 *

*/

static void ldif_print_file_vis( gpointer key, gpointer value, gpointer data ) {

        Ldif_FieldRec *rec = value;

        FILE *stream = data;

        ldif_print_fieldrec( rec, stream );

}

/*

* Display object to specified stream.

*/

void ldif_print_file( LdifFile *ldifFile, FILE *stream ) {

        g_return_if_fail( ldifFile != NULL );

        fprintf( stream, "LDIF File:\n" );

        fprintf( stream, "file spec: '%s'\n", ldifFile->path );

        fprintf( stream, "  ret val: %d\n",   ldifFile->retVal );

        fprintf( stream, "   fields: {\n" );

        g_hash_table_foreach( ldifFile->hashFields, ldif_print_file_vis, stream );

        fprintf( stream, "} ---\n" );

}

/*

* Open file for read.

* return: TRUE if file opened successfully.

*/

static gint ldif_open_file( LdifFile* ldifFile ) {

        /* printf( "Opening file\n" ); */

        if( ldifFile->path ) {

                ldifFile->file = g_fopen( ldifFile->path, "rb" );

                if( ! ldifFile->file ) {

                        /* printf( "can't open %s\n", ldifFile->path ); */

                        ldifFile->retVal = MGU_OPEN_FILE;

                        return ldifFile->retVal;

                }

        }

        else {

                /* printf( "file not specified\n" ); */

                ldifFile->retVal = MGU_NO_FILE;

                return ldifFile->retVal;

        }

        /* Setup a buffer area */

        ldifFile->buffer[0] = '\0';

        ldifFile->bufptr = ldifFile->buffer;

        ldifFile->retVal = MGU_SUCCESS;

        return ldifFile->retVal;

}

/*

* Close file.

*/

static void ldif_close_file( LdifFile *ldifFile ) {

        g_return_if_fail( ldifFile != NULL );

        if( ldifFile->file ) fclose( ldifFile->file );

        ldifFile->file = NULL;

}

/*

* Read line of text from file.

* Return: ptr to buffer where line starts.

*/

static gchar *ldif_get_line( LdifFile *ldifFile ) {

        gchar buf[ LDIFBUFSIZE ];

        gint ch;

        gint i = 0;

        if( feof( ldifFile->file ) )

                return NULL;

        while( i < LDIFBUFSIZE - 1 ) {

                ch = fgetc( ldifFile->file );

                if( ch == '\0' || ch == EOF ) {

                        if( i == 0 )

                                return NULL;

                        break;

                }

#if HAVE_DOSISH_SYSTEM

#else

                if( ch == '\r' )

                        continue;

#endif

                if( ch == '\n' )

                        break;

                buf[i] = ch;

                i++;

        }

        buf[i] = '\0';

        /* Return a copy of buffer */

        return g_strdup( buf );

}

/*

* Parse tag name from line buffer.

* Enter: line   Buffer.

*        flag64 Base-64 encoder flag.

* Return: Buffer containing the tag name, or NULL if no delimiter char found.

* If a double delimiter (::) is found, flag64 is set.

*/

static gchar *ldif_get_tagname( char* line, gboolean *flag64 ) {

        gint len = 0;

        gchar *tag = NULL;

        gchar *lptr = line;

        gchar *sptr = NULL;

        while( *lptr++ ) {

                /* Check for language tag */

                if( *lptr == LDIF_LANG_TAG ) {

                        if( sptr == NULL ) sptr = lptr;

                }

                /* Check for delimiter */

                if( *lptr == LDIF_SEP_TAG ) {

                        if( sptr ) {

                                len = sptr - line;

                        }

                        else {

                                len = lptr - line;

                        }

                        /* Base-64 encoding? */

                        if( * ++lptr == LDIF_SEP_TAG ) *flag64 = TRUE;

                        tag = g_strndup( line, len+1 );

                        tag[ len ] = '\0';

                        g_strdown( tag );

                        return tag;

                }

        }

        return tag;

}

/*

* Parse tag value from line buffer.

* Enter: line   Buffer.

* Return: Buffer containing the tag value. Empty string is returned if

* no delimiter char found.

*/

static gchar *ldif_get_tagvalue( gchar* line ) {

        gchar *value = NULL;

        gchar *start = NULL;

        gchar *lptr;

        gint len = 0;

        for( lptr = line; *lptr; lptr++ ) {

                if( *lptr == LDIF_SEP_TAG ) {

                        if( ! start )

                                start = lptr + 1;

                }

        }

        if( start ) {

                if( *start == LDIF_SEP_TAG ) start++;

                len = lptr - start;

                value = g_strndup( start, len+1 );

                g_strstrip( value );

        }

        else {

                /* Ensure that we get an empty string */

                value = g_strndup( "", 1 );

        }

        value[ len ] = '\0';

        return value;

}

#if 0

/*

* Dump linked lists of character strings (for debug).

*/

static void ldif_dump_lists( GSList *listName, GSList *listAddr, GSList *listRem, GSList *listID, FILE *stream ) {

        fprintf( stream, "dump name\n" );

        fprintf( stream, "------------\n" );

        mgu_print_list( listName, stdout );

        fprintf( stream, "dump address\n" );

        fprintf( stream, "------------\n" );

        mgu_print_list( listAddr, stdout );

        fprintf( stream, "dump remarks\n" );

        fprintf( stdout, "------------\n" );

        mgu_print_list( listRem, stdout );

        fprintf( stream, "dump id\n" );

        fprintf( stdout, "------------\n" );

        mgu_print_list( listID, stdout );

}

#endif

/*

* Parsed address data.

*/

typedef struct _Ldif_ParsedRec_ Ldif_ParsedRec;

struct _Ldif_ParsedRec_ {

        GSList *listCName;

        GSList *listFName;

        GSList *listLName;

        GSList *listNName;

        GSList *listAddress;

        GSList *listID;

        GSList *userAttr;

};

/*

* User attribute data.

*/

typedef struct _Ldif_UserAttr_ Ldif_UserAttr;

struct _Ldif_UserAttr_ {

        gchar *name;

        gchar *value;

};

/*

* Build an address list entry and append to list of address items. Name is formatted

* as "<first-name> <last-name>".

*/

static void ldif_build_items( LdifFile *ldifFile, Ldif_ParsedRec *rec, AddressCache *cache ) {

        GSList *nodeFirst;

        GSList *nodeAddress;

        GSList *nodeAttr;

        gchar *firstName = NULL, *lastName = NULL, *fullName = NULL, *nickName = NULL;

        gint iLen = 0, iLenT = 0;

        ItemPerson *person;

        ItemEMail *email;

        nodeAddress = rec->listAddress;

        if( nodeAddress == NULL ) return;

        /* Find longest first name in list */

        nodeFirst = rec->listFName;

        while( nodeFirst ) {

                if( firstName == NULL ) {

                        firstName = nodeFirst->data;

                        iLen = strlen( firstName );

                }

                else {

                        if( ( iLenT = strlen( nodeFirst->data ) ) > iLen ) {

                                firstName = nodeFirst->data;

                                iLen = iLenT;

                        }

                }

                nodeFirst = g_slist_next( nodeFirst );

        }

        /* Format name */

        if( rec->listLName ) {

                lastName = rec->listLName->data;

        }

        if( firstName ) {

                if( lastName ) {

                        fullName = g_strdup_printf( "%s %s", firstName, lastName );

                }

                else {

                        fullName = g_strdup_printf( "%s", firstName );

                }

        }

        else {

                if( lastName ) {

                        fullName = g_strdup_printf( "%s", lastName );

                }

        }

        if( fullName ) {

                g_strchug( fullName ); g_strchomp( fullName );

        }

        if( rec->listNName ) {

                nickName = rec->listNName->data;

        }

        person = addritem_create_item_person();

        addritem_person_set_common_name( person, fullName );

        addritem_person_set_first_name( person, firstName );

        addritem_person_set_last_name( person, lastName );

        addritem_person_set_nick_name( person, nickName );

        addrcache_id_person( cache, person );

        addrcache_add_person( cache, person );

        ++ldifFile->importCount;

        /* Add address item */

        while( nodeAddress ) {

                email = addritem_create_item_email();

                addritem_email_set_address( email, nodeAddress->data );

                addrcache_id_email( cache, email );

                addrcache_person_add_email( cache, person, email );

                nodeAddress = g_slist_next( nodeAddress );

        }

        g_free( fullName );

        fullName = firstName = lastName = NULL;

        /* Add user attributes */

        nodeAttr = rec->userAttr;

        while( nodeAttr ) {

                Ldif_UserAttr *attr = nodeAttr->data;

                UserAttribute *attrib = addritem_create_attribute();

                addritem_attrib_set_name( attrib, attr->name );

                addritem_attrib_set_value( attrib, attr->value );

                addritem_person_add_attribute( person, attrib );

                nodeAttr = g_slist_next( nodeAttr );

        }

        nodeAttr = NULL;

}

/*

* Add selected field as user attribute.

*/

static void ldif_add_user_attr( Ldif_ParsedRec *rec, gchar *tagName, gchar *tagValue, GHashTable *hashField ) {

        Ldif_FieldRec *fld = NULL;

        Ldif_UserAttr *attr = NULL;

        gchar *name;

        fld = g_hash_table_lookup( hashField, tagName );

        if( fld ) {

                if( fld->reserved ) return;

                if( ! fld->selected ) return;

                name = fld->tagName;

                if( fld->userName ) {

                        name = fld->userName;

                }

                attr = g_new0( Ldif_UserAttr, 1 );

                attr->name = g_strdup( name );

                attr->value = g_strdup( tagValue );

                rec->userAttr = g_slist_append( rec->userAttr, attr );

        }

}

/*

* Add value to parsed data.

*/

static void ldif_add_value( Ldif_ParsedRec *rec, gchar *tagName, gchar *tagValue, GHashTable *hashField ) {

        gchar *nm, *val;

        nm = g_strdup( tagName );

        g_strdown( nm );

        if( tagValue ) {

                val = g_strdup( tagValue );

        }

        else {

                val = g_strdup( "" );

        }

        g_strstrip( val );

        if( g_ascii_strcasecmp( nm, LDIF_TAG_COMMONNAME ) == 0 ) {

                rec->listCName = g_slist_append( rec->listCName, val );

        }

        else if( g_ascii_strcasecmp( nm, LDIF_TAG_FIRSTNAME ) == 0 ) {

                rec->listFName = g_slist_append( rec->listFName, val );

        }

        else if( g_ascii_strcasecmp( nm, LDIF_TAG_LASTNAME ) == 0 ) {

                rec->listLName = g_slist_append( rec->listLName, val );

        }

        else if( g_ascii_strcasecmp( nm, LDIF_TAG_NICKNAME ) == 0 ) {

                rec->listNName = g_slist_append( rec->listNName, val );

        }

        else if( g_ascii_strcasecmp( nm, LDIF_TAG_EMAIL ) == 0 ) {

                rec->listAddress = g_slist_append( rec->listAddress, val );

        }

        else {

                /* Add field as user attribute */

                ldif_add_user_attr( rec, tagName, tagValue, hashField );

        }

        g_free( nm );

}

/*

* Clear parsed data.

*/

static void ldif_clear_rec( Ldif_ParsedRec *rec ) {

        GSList *list;

        /* Free up user attributes */

        list = rec->userAttr;

        while( list ) {

                Ldif_UserAttr *attr = list->data;

                g_free( attr->name );

                g_free( attr->value );

                g_free( attr );

                list = g_slist_next( list );

        }

        g_slist_free( rec->userAttr );

        g_slist_free( rec->listCName );

        g_slist_free( rec->listFName );

        g_slist_free( rec->listLName );

        g_slist_free( rec->listNName );

        g_slist_free( rec->listAddress );

        g_slist_free( rec->listID );

        rec->userAttr = NULL;

        rec->listCName = NULL;

        rec->listFName = NULL;

        rec->listLName = NULL;

        rec->listNName = NULL;

        rec->listAddress = NULL;

        rec->listID = NULL;

}

#if 0

/*

* Print parsed data.

*/

static void ldif_print_record( Ldif_ParsedRec *rec, FILE *stream ) {

        GSList *list;

        fprintf( stream, "LDIF Parsed Record:\n" );

        fprintf( stream, "common name:" );

        mgu_print_list( rec->listCName, stream );

        if( ! rec->listCName ) fprintf( stream, "\n" );

        fprintf( stream, "first name:" );

        mgu_print_list( rec->listFName, stream );

        if( ! rec->listFName ) fprintf( stream, "\n" );

        fprintf( stream, "last name:" );

        mgu_print_list( rec->listLName, stream );

        if( ! rec->listLName ) fprintf( stream, "\n" );

        fprintf( stream, "nick name:" );

        mgu_print_list( rec->listNName, stream );

        if( ! rec->listNName ) fprintf( stream, "\n" );

        fprintf( stream, "address:" );

        mgu_print_list( rec->listAddress, stream );

        if( ! rec->listAddress ) fprintf( stream, "\n" );

        fprintf( stream, "id:" );

        mgu_print_list( rec->listID, stream );

        if( ! rec->listID ) fprintf( stream, "\n" );

        list = rec->userAttr;

        while( list ) {

                Ldif_UserAttr *attr = list->data;

                fprintf( stream, "n/v:\t%s:\t:%s:\n", attr->name, attr->value );

                list = g_slist_next( list );

        }

        list = NULL;

}

static void ldif_dump_b64( gchar *buf ) {

        Base64Decoder *decoder = NULL;

        gchar outBuf[8192];

        gint len;

        printf( "base-64 : inbuf : %s\n", buf );

        decoder = base64_decoder_new();

        len = base64_decoder_decode( decoder, buf, outBuf );

        if (len < 0) {

                printf( "base-64 : Bad BASE64 content\n" );

        }

        else {

                outBuf[len] = '\0';

                printf( "base-64 : %d : %s\n\n", len, outBuf );

        }

        base64_decoder_free( decoder );

        decoder = NULL;

}

#endif

/*

* Read file data into address cache.

* Note that one LDIF record identifies one entity uniquely with the

* distinguished name (dn) tag. Each person can have multiple E-Mail

* addresses. Also, each person can have many common name (cn) tags.

*/

static void ldif_read_file( LdifFile *ldifFile, AddressCache *cache ) {

        gchar *tagName = NULL, *tagValue = NULL;

        gchar *lastTag = NULL, *fullValue = NULL;

        GSList *listValue = NULL;

        gboolean flagEOF = FALSE, flagEOR = FALSE;

        gboolean flag64 = FALSE, last64 = FALSE;

        Ldif_ParsedRec *rec;

        long posEnd = 0L;

        long posCur = 0L;

        GHashTable *hashField;

        hashField = ldifFile->hashFields;

        rec = g_new0( Ldif_ParsedRec, 1 );

        ldif_clear_rec( rec );

        /* Find EOF for progress indicator */

        fseek( ldifFile->file, 0L, SEEK_END );

        posEnd = ftell( ldifFile->file );

        fseek( ldifFile->file, 0L, SEEK_SET );

        while( ! flagEOF ) {

                gchar *line =  ldif_get_line( ldifFile );

                posCur = ftell( ldifFile->file );

                if( ldifFile->cbProgress ) {

                        /* Call progress indicator */

                        ( ldifFile->cbProgress ) ( ldifFile, & posEnd, & posCur );

                }

                flag64 = FALSE;

                if( line == NULL ) {

                        flagEOF = flagEOR = TRUE;

                }

                else if( *line == '\0' ) {

                        flagEOR = TRUE;

                }

                if( flagEOR ) {

                        /* EOR, Output address data */

                        if( lastTag ) {

                                /* Save record */

                                fullValue = mgu_list_coalesce( listValue );

                                /* Base-64 encoded data */

                                /*

                                if( last64 ) {

                                        ldif_dump_b64( fullValue );

                                }

                                */

                                ldif_add_value( rec, lastTag, fullValue, hashField );

                                /* ldif_print_record( rec, stdout ); */

                                ldif_build_items( ldifFile, rec, cache );

                                ldif_clear_rec( rec );

                                g_free( lastTag );

                                mgu_free_list( listValue );

                                lastTag = NULL;

                                listValue = NULL;

                                last64 = FALSE;

                        }

                }

                if( line ) {

                        flagEOR = FALSE;

                        if( *line == ' ' ) {

                                /* Continuation line */

                                listValue = g_slist_append( listValue, g_strdup( line+1 ) );

                        }

                        else if( *line == '=' ) {

                                /* Base-64 encoded continuation field */

                                listValue = g_slist_append( listValue, g_strdup( line ) );

                        }

                        else {

                                /* Parse line */

                                tagName = ldif_get_tagname( line, &flag64 );

                                if( tagName ) {

                                        tagValue = ldif_get_tagvalue( line );

                                        if( tagValue ) {

                                                if( lastTag ) {

                                                        /* Save data */

                                                        fullValue = mgu_list_coalesce( listValue );

                                                        /* Base-64 encoded data */

                                                        /*

                                                        if( last64 ) {

                                                                ldif_dump_b64( fullValue );

                                                        }

                                                        */

                                                        ldif_add_value( rec, lastTag, fullValue, hashField );

                                                        g_free( lastTag );

                                                        mgu_free_list( listValue );

                                                        lastTag = NULL;

                                                        listValue = NULL;

                                                        last64 = FALSE;

                                                }

                                                lastTag = g_strdup( tagName );

                                                listValue = g_slist_append( listValue, g_strdup( tagValue ) );

                                                g_free( tagValue );

                                                last64 = flag64;

                                        }

                                        g_free( tagName );

                                }

                        }

                }

                g_free( line );

        }

        /* Release data */

        ldif_clear_rec( rec );

        g_free( rec );

        g_free( lastTag );

        mgu_free_list( listValue );

}

/*

* Add list of field names to hash table.

*/

static void ldif_hash_add_list( GHashTable *table, GSList *list ) {

        GSList *node = list;

        /* mgu_print_list( list, stdout ); */

        while( node ) {

                gchar *tag = node->data;

                if( ! g_hash_table_lookup( table, tag ) ) {

                        Ldif_FieldRec *rec = NULL;

                        gchar *key = g_strdup( tag );

                        rec = ldif_create_fieldrec( tag );

                        if( g_ascii_strcasecmp( tag, LDIF_TAG_COMMONNAME ) == 0 ) {

                                rec->reserved = TRUE;

                        }

                        else if( g_ascii_strcasecmp( tag, LDIF_TAG_FIRSTNAME ) == 0 ) {

                                rec->reserved = TRUE;

                        }

                        else if( g_ascii_strcasecmp( tag, LDIF_TAG_LASTNAME ) == 0 ) {

                                rec->reserved = TRUE;

                        }

                        else if( g_ascii_strcasecmp( tag, LDIF_TAG_NICKNAME ) == 0 ) {

                                rec->reserved = TRUE;

                        }

                        else if( g_ascii_strcasecmp( tag, LDIF_TAG_EMAIL ) == 0 ) {

                                rec->reserved = TRUE;

                        }

                        g_hash_table_insert( table, key, rec );

                }

                node = g_slist_next( node );

        }

}

/*

* Sorted list comparison function.

*/

static int ldif_field_compare( gconstpointer ptr1, gconstpointer ptr2 ) {

        const Ldif_FieldRec *rec1 = ptr1;

        const Ldif_FieldRec *rec2 = ptr2;

        return g_ascii_strcasecmp( rec1->tagName, rec2->tagName );

}

/*

* Append hash table entry to list - visitor function.

*/

static void ldif_hash2list_vis( gpointer key, gpointer value, gpointer data ) {

        LdifFile *ldf = data;

        ldf->tempList = g_list_insert_sorted( ldf->tempList, value, ldif_field_compare );

}

/*

* Read tag names for file data.

*/

static void ldif_read_tag_list( LdifFile *ldifFile ) {

        gchar *tagName = NULL;

        GSList *listTags = NULL;

        gboolean flagEOF = FALSE, flagEOR = FALSE, flagMail = FALSE;

        gboolean flag64 = FALSE;

        long posEnd = 0L;

        long posCur = 0L;

        /* Clear hash table */

        g_hash_table_foreach_remove( ldifFile->hashFields, ldif_hash_free_vis, NULL );

        /* Find EOF for progress indicator */

        fseek( ldifFile->file, 0L, SEEK_END );

        posEnd = ftell( ldifFile->file );

        fseek( ldifFile->file, 0L, SEEK_SET );

        /* Process file */

        while( ! flagEOF ) {

                gchar *line = ldif_get_line( ldifFile );

                posCur = ftell( ldifFile->file );

                if( ldifFile->cbProgress ) {

                        /* Call progress indicator */

                        ( ldifFile->cbProgress ) ( ldifFile, & posEnd, & posCur );

                }

                flag64 = FALSE;

                if( line == NULL ) {

                        flagEOF = flagEOR = TRUE;

                }

                else if( *line == '\0' ) {

                        flagEOR = TRUE;

                }

                if( flagEOR ) {

                        /* EOR, Output address data */

                        /* Save field list to hash table */

                        if( flagMail ) {

                                ldif_hash_add_list( ldifFile->hashFields, listTags );

                        }

                        mgu_free_list( listTags );

                        listTags = NULL;

                        flagMail = FALSE;

                }

                if( line ) {

                        flagEOR = FALSE;

                        if( *line == ' ' ) {

                                /* Continuation line */

                        }

                        else if( *line == '=' ) {

                                /* Base-64 encoded continuation field */

                        }

                        else {

                                /* Parse line */

                                tagName = ldif_get_tagname( line, &flag64 );

                                if( tagName ) {

                                        /* Add tag to list */

                                        listTags = g_slist_append( listTags, tagName );

                                        if( g_ascii_strcasecmp( tagName, LDIF_TAG_EMAIL ) == 0 ) {

                                                flagMail = TRUE;

                                        }

                                }

                        }

                }

                g_free( line );

        }

        /* Release data */

        mgu_free_list( listTags );

        listTags = NULL;

}

/*

* ============================================================================

* Read file into list. Main entry point

* Enter:  ldifFile LDIF control data.

*         cache    Address cache to load.

* Return: Status code.

* ============================================================================

*/

gint ldif_import_data( LdifFile *ldifFile, AddressCache *cache ) {

        g_return_val_if_fail( ldifFile != NULL, MGU_BAD_ARGS );

        ldifFile->retVal = MGU_SUCCESS;

        addrcache_clear( cache );

        cache->dataRead = FALSE;

        ldif_open_file( ldifFile );

        if( ldifFile->retVal == MGU_SUCCESS ) {

                /* Read data into the cache */

                ldif_read_file( ldifFile, cache );

                ldif_close_file( ldifFile );

                /* Mark cache */

                cache->modified = FALSE;

                cache->dataRead = TRUE;

        }

        return ldifFile->retVal;

}

/*

* ============================================================================

* Process entire file reading list of unique fields. List of fields may be

* accessed with the ldif_get_fieldlist() function.

* Enter:  ldifFile LDIF control data.

* Return: Status code.

* ============================================================================

*/

gint ldif_read_tags( LdifFile *ldifFile ) {

        g_return_val_if_fail( ldifFile != NULL, MGU_BAD_ARGS );

        ldifFile->retVal = MGU_SUCCESS;

        if( ldifFile->dirtyFlag ) {

                ldif_open_file( ldifFile );

                if( ldifFile->retVal == MGU_SUCCESS ) {

                        /* Read data into the cache */

                        ldif_read_tag_list( ldifFile );

                        ldif_close_file( ldifFile );

                        ldifFile->dirtyFlag = FALSE;

                        ldifFile->accessFlag = TRUE;

                }

        }

        return ldifFile->retVal;

}

/*

* Return list of fields for LDIF file.

* Enter: ldifFile LdifFile object.

* Return: Linked list of Ldif_FieldRec objects. This list may be g_free'd.

* Note that the objects in the list should not be freed since they refer to

* objects inside the internal cache. These objects will be freed when

* LDIF file object is freed.

*/

GList *ldif_get_fieldlist( LdifFile *ldifFile ) {

        GList *list = NULL;

        g_return_val_if_fail( ldifFile != NULL, NULL );

        if( ldifFile->hashFields ) {

                ldifFile->tempList = NULL;

                g_hash_table_foreach( ldifFile->hashFields, ldif_hash2list_vis, ldifFile );

                list = ldifFile->tempList;

                ldifFile->tempList = NULL;

        }