path: root/addressbook/backend/ebook/evolution-ldif-importer.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/* 
 * LDIF importer.  LDIF is the file format of an exported Netscape
 * addressbook.
 *
 * Framework copied from evolution-gnomecard-importer.c
 *
 * Michael M. Morrison (mmorrison@kqcorp.com)
 *
 * Multi-line value support, mailing list support, base64 support, and
 * various fixups: Chris Toshok (toshok@ximian.com)
 */

#include <config.h>
#include <bonobo.h>
#include <gnome.h>
#include <liboaf/liboaf.h>
#include <stdio.h>
#include <ctype.h>

#include <e-book.h>
#include <e-card-simple.h>
#include <e-destination.h>

#include <importer/evolution-importer.h>
#include <importer/GNOME_Evolution_Importer.h>

#define COMPONENT_FACTORY_IID "OAFIID:GNOME_Evolution_Addressbook_LDIF_ImporterFactory"

static BonoboGenericFactory *factory = NULL;

static GHashTable *dn_card_hash;

typedef struct {
    char *filename;
    GList *cardlist;
    GList *iterator;
    EBook *book;
    gboolean ready;
} LDIFImporter;

static struct {
    char *ldif_attribute;
    ECardSimpleField simple_field;
#define FLAG_ADDRESS 0x01
    int flags;
}
ldif_fields[] = {
    { "cn", E_CARD_SIMPLE_FIELD_FULL_NAME },
    { "mail", E_CARD_SIMPLE_FIELD_EMAIL },
#if 0
    { "givenname", E_CARD_SIMPLE_FIELD_GIVEN_NAME },
#endif
    { "sn", E_CARD_SIMPLE_FIELD_FAMILY_NAME },
    { "xmozillanickname", E_CARD_SIMPLE_FIELD_NICKNAME },
    { "o", E_CARD_SIMPLE_FIELD_ORG },
    { "locality", 0, FLAG_ADDRESS},
    { "st", 0, FLAG_ADDRESS },
    { "streetaddress", 0, FLAG_ADDRESS },
    { "title", E_CARD_SIMPLE_FIELD_TITLE },
    { "postalcode", 0, FLAG_ADDRESS },
    { "countryname", 0, FLAG_ADDRESS },
    { "telephonenumber", E_CARD_SIMPLE_FIELD_PHONE_BUSINESS},
    { "homephone", E_CARD_SIMPLE_FIELD_PHONE_HOME },
    { "facsimiletelephonenumber", E_CARD_SIMPLE_FIELD_PHONE_BUSINESS_FAX },
    { "ou", E_CARD_SIMPLE_FIELD_ORG_UNIT },
    { "pagerphone", E_CARD_SIMPLE_FIELD_PHONE_PAGER },
    { "cellphone", E_CARD_SIMPLE_FIELD_PHONE_MOBILE },
    { "homeurl", E_CARD_SIMPLE_FIELD_URL },
    { "description", E_CARD_SIMPLE_FIELD_NOTE },
    { "xmozillausehtmlmail", E_CARD_SIMPLE_FIELD_WANTS_HTML }
};
static int num_ldif_fields = sizeof(ldif_fields) / sizeof (ldif_fields[0]);

static unsigned char base64_rank[256] = {
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63,
     52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255,  0,255,255,
    255,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
     15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255,
    255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
     41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
};

/**
 * base64_decode_step: decode a chunk of base64 encoded data
 * @in: input stream
 * @len: max length of data to decode
 * @out: output stream
 * @state: holds the number of bits that are stored in @save
 * @save: leftover bits that have not yet been decoded
 *
 * Decodes a chunk of base64 encoded data
 **/
static int
base64_decode_step(unsigned char *in, int len, unsigned char *out, int *state, unsigned int *save)
{
    register unsigned char *inptr, *outptr;
    unsigned char *inend, c;
    register unsigned int v;
    int i;

    inend = in+len;
    outptr = out;

    /* convert 4 base64 bytes to 3 normal bytes */
    v=*save;
    i=*state;
    inptr = in;
    while (inptr<inend) {
        c = base64_rank[*inptr++];
        if (c != 0xff) {
            v = (v<<6) | c;
            i++;
            if (i==4) {
                *outptr++ = v>>16;
                *outptr++ = v>>8;
                *outptr++ = v;
                i=0;
            }
        }
    }

    *save = v;
    *state = i;

    /* quick scan back for '=' on the end somewhere */
    /* fortunately we can drop 1 output char for each trailing = (upto 2) */
    i=2;
    while (inptr>in && i) {
        inptr--;
        if (base64_rank[*inptr] != 0xff) {
            if (*inptr == '=')
                outptr--;
            i--;
        }
    }

    /* if i!= 0 then there is a truncation error! */
    return outptr-out;
}

static int
base64_decode_simple (char *data, int len)
{
    int state = 0;
    unsigned int save = 0;

    return base64_decode_step ((unsigned char *)data, len,
                   (unsigned char *)data, &state, &save);
}

static GString *
getValue( char **src )
{
    GString *dest = g_string_new("");
    char *s = *src;
    gboolean need_base64 = (*s == ':');

 copy_line:
    while( *s != 0 && *s != '\n' && *s != '\r' )
        dest = g_string_append_c (dest, *s++);

    if (*s == '\r') s++;
    if (*s == '\n') s++;

    /* check for continuation here */
    if (*s == ' ') {
        s++;
        goto copy_line;
    }

    if (need_base64) {
        int new_len;
        /* it's base64 encoded */
        dest = g_string_erase (dest, 0, 2);
        new_len = base64_decode_simple (dest->str, strlen (dest->str));
        dest = g_string_truncate (dest, new_len);
    }

    *src = s;

    return dest;
}

static gboolean
parseLine( ECardSimple *simple, ECardDeliveryAddress *address, char **buf )
{
    char *ptr;
    char *colon, *value;
    gboolean field_handled;
    GString *ldif_value;

    ptr = *buf;

    /* if the string is empty, return */
    if (*ptr == '\0') {
        *buf = NULL;
        return TRUE;
    }

    /* skip comment lines */
    if (*ptr == '#') {
        ptr = strchr (ptr, '\n');
        if (!ptr)
            *buf = NULL;
        else
            *buf = ptr + 1;
        return TRUE;
    }

    /* first, check for a 'continuation' line */
    if( ptr[0] == ' ' && ptr[1] != '\n' ) {
        g_warning ("unexpected continuation line");
        return FALSE;
    }

    colon = (char *)strchr( ptr, ':' );
    if (colon) {
        int i;

        *colon = 0;
        value = colon + 1;
        while ( isspace(*value) )
            value++;

        ldif_value = getValue(&value );

        field_handled = FALSE;
        for (i = 0; i < num_ldif_fields; i ++) {
            if (!g_strcasecmp (ptr, ldif_fields[i].ldif_attribute)) {
                if (ldif_fields[i].flags & FLAG_ADDRESS) {
                    if (!g_strcasecmp (ptr, "locality"))
                        address->city = g_strdup (ldif_value->str);
                    else if (!g_strcasecmp (ptr, "countryname"))
                        address->country = g_strdup (ldif_value->str);
                    else if (!g_strcasecmp (ptr, "postalcode"))
                        address->code = g_strdup (ldif_value->str);
                    else if (!g_strcasecmp (ptr, "st"))
                        address->region = g_strdup (ldif_value->str);
                    else if (!g_strcasecmp (ptr, "streetaddress"))
                        address->street = g_strdup (ldif_value->str);
                }
                else {
                    e_card_simple_set (simple, ldif_fields[i].simple_field, ldif_value->str);
                    printf ("set %s to %s\n", ptr, ldif_value->str);
                }
                field_handled = TRUE;
                break;
            }
        }

        /* handle objectclass/dn/member out here */
        if (!field_handled) {
            if (!g_strcasecmp (ptr, "dn"))
                g_hash_table_insert (dn_card_hash, g_strdup(ldif_value->str), simple->card);
            else if (!g_strcasecmp (ptr, "objectclass") && !g_strcasecmp (ldif_value->str, "groupofnames")) {
                e_card_simple_set (simple, E_CARD_SIMPLE_FIELD_IS_LIST, "true");
            }
            else if (!g_strcasecmp (ptr, "member")) {
                EList *email;
                gtk_object_get (GTK_OBJECT (simple->card),
                        "email", &email,
                        NULL);
                e_list_append (email, ldif_value->str);
            }
        }

        /* put the colon back the way it was, just for kicks */
        *colon = ':';

        g_string_free (ldif_value, TRUE);
    }
    else {
        g_warning ("unrecognized entry %s", ptr);
        return FALSE;
    }

    *buf = value;

    return TRUE;
}

static ECard *
getNextLDIFEntry( FILE *f )
{
    ECard *card;
    ECardAddrLabel *label;
    ECardSimple *simple;
    ECardDeliveryAddress *address;
    GString *str;
    char line[1024];
    char *buf;

    str = g_string_new ("");
    /* read from the file until we get to a blank line (or eof) */
    while (!feof (f)) {
        if (!fgets (line, sizeof(line), f))
            break;
        if (line[0] == '\n')
            break;
        str = g_string_append (str, line);
    }

    if (strlen (str->str) == 0) {
        g_string_free (str, TRUE);
        return NULL;
    }

    /* now parse that entry */
    card = e_card_new ("");
    simple = e_card_simple_new (card);
    address = e_card_delivery_address_new ();

    buf = str->str;
    while (buf) {
        if (!parseLine (simple, address, &buf)) {
            /* parsing error */
            gtk_object_unref (GTK_OBJECT (simple));
            e_card_delivery_address_unref (address);
            return NULL;
        }
    }


    /* fill in the address */
    address->flags = E_CARD_ADDR_HOME;

    label = e_card_delivery_address_to_label (address);
    e_card_delivery_address_unref (address);

    e_card_simple_set_address (simple, E_CARD_SIMPLE_ADDRESS_ID_HOME, label);

    e_card_address_label_unref (label);

    e_card_simple_sync_card (simple);

    g_string_free (str, TRUE);

    return card;
}

static void
add_card_cb (EBook *book, EBookStatus status, const gchar *id, gpointer closure)
{
    ECard *card = E_CARD(closure);
    char *vcard;

    e_card_set_id (card, id);

    vcard = e_card_get_vcard(card); 

    g_print ("Saved card: %s\n", vcard);
    g_free(vcard);
}

static void
resolve_list_card (LDIFImporter *gci, ECard *card)
{
    EList *email;
    EIterator *email_iter;
    char *full_name;

    if (!e_card_evolution_list (card))
        return;

    gtk_object_get (GTK_OBJECT (card),
            "email", &email,
            "full_name", &full_name,
            NULL);

    /* set file_as to full_name so we don't later try and figure
           out a first/last name for the list. */
    if (full_name)
        gtk_object_set (GTK_OBJECT (card),
                "file_as", full_name,
                NULL);

    email_iter = e_list_get_iterator (email);
    while (e_iterator_is_valid (email_iter)) {
        const char *dn = e_iterator_get (email_iter);
        ECard *dn_card = g_hash_table_lookup (dn_card_hash, dn);

        /* break list chains here, since we don't support them just yet */
        if (dn_card && !e_card_evolution_list (dn_card)) {
            EDestination *dest = e_destination_new ();
            gchar *dest_xml;
            e_destination_set_card (dest, dn_card, 0);  /* Hard-wired for default e-mail, since netscape only exports 1 email address */
            dest_xml = e_destination_export (dest);
            gtk_object_unref (GTK_OBJECT (dest));
            if (dest_xml) {
                e_iterator_set (email_iter, dest_xml);
                g_free (dest_xml);
                e_iterator_next (email_iter);
            }
            else {
                e_iterator_delete (email_iter);
            }
        }
        else {
            e_iterator_delete (email_iter);
        }
    }
}

static void
book_open_cb (EBook *book, EBookStatus status, gpointer closure)
{
    LDIFImporter *gci = (LDIFImporter *) closure;
    GList * list = NULL;
    GList * list_list = NULL;
    FILE * file;
    ECard *card;

    if(!( file = fopen( gci->filename, "r" ) )) {
        g_warning("!!!Can't open .ldif file");
        return;
    }

    dn_card_hash = g_hash_table_new (g_str_hash, g_str_equal);

    while ((card = getNextLDIFEntry (file))) {

        if (e_card_evolution_list (card))
            list_list = g_list_append (list_list, card);
        else
            list = g_list_append (list, card);
    }

    fclose( file );

    list = g_list_reverse( list );
    list_list = g_list_reverse (list_list);
    list = g_list_concat (list, list_list);

    gci->cardlist = list;
    gci->ready = TRUE;
}

static void
ebook_create (LDIFImporter *gci)
{
    gchar *path, *uri;
    
    gci->book = e_book_new ();

    if (!gci->book) {
        printf ("%s: %s(): Couldn't create EBook, bailing.\n",
            __FILE__,
            __FUNCTION__);
        return;
    }

    path = g_concat_dir_and_file (g_get_home_dir (),
                      "evolution/local/Contacts/addressbook.db");
    uri = g_strdup_printf ("file://%s", path);
    g_free (path);

    if (! e_book_load_uri (gci->book, uri, book_open_cb, gci)) {
        printf ("error calling load_uri!\n");
    }
    g_free(uri);
}

/* EvolutionImporter methods */
static void
process_item_fn (EvolutionImporter *importer,
         CORBA_Object listener,
         void *closure,
         CORBA_Environment *ev)
{
    LDIFImporter *gci = (LDIFImporter *) closure;
    ECard *card;

    if (gci->iterator == NULL)
        gci->iterator = gci->cardlist;

    if (gci->ready == FALSE) {
        GNOME_Evolution_ImporterListener_notifyResult (listener,
                                   GNOME_Evolution_ImporterListener_NOT_READY,
                                   gci->iterator ? TRUE : FALSE, 
                                   ev);
        return;
    }
    
    if (gci->iterator == NULL) {
        GNOME_Evolution_ImporterListener_notifyResult (listener,
                                   GNOME_Evolution_ImporterListener_UNSUPPORTED_OPERATION,
                                   FALSE, ev);
        return;
    }

    card = gci->iterator->data;
    if (e_card_evolution_list (card))
        resolve_list_card (gci, card);
    e_book_add_card (gci->book, card, add_card_cb, card);

    gci->iterator = gci->iterator->next;

    GNOME_Evolution_ImporterListener_notifyResult (listener,
                               GNOME_Evolution_ImporterListener_OK,
                               gci->iterator ? TRUE : FALSE, 
                               ev);
    if (ev->_major != CORBA_NO_EXCEPTION) {
        g_warning ("Error notifying listeners.");
    }
    
    return;
}

static char *supported_extensions[2] = {
    ".ldif", NULL
};

static gboolean
support_format_fn (EvolutionImporter *importer,
           const char *filename,
           void *closure)
{
    char *ext;
    int i;

    ext = strrchr (filename, '.');
    if (ext == NULL) {
        return FALSE;
    }

    for (i = 0; supported_extensions[i] != NULL; i++) {
        if (strcmp (supported_extensions[i], ext) == 0)
            return TRUE;
    }

    return FALSE;
}

static void
importer_destroy_cb (GtkObject *object,
             LDIFImporter *gci)
{
    gtk_main_quit ();
}

static gboolean
load_file_fn (EvolutionImporter *importer,
          const char *filename,
          const char *folderpath,
          void *closure)
{
    LDIFImporter *gci;

    gci = (LDIFImporter *) closure;
    gci->filename = g_strdup (filename);
    gci->cardlist = NULL;
    gci->iterator = NULL;
    gci->ready = FALSE;
    ebook_create (gci);

    return TRUE;
}
                       
static BonoboObject *
factory_fn (BonoboGenericFactory *_factory,
        void *closure)
{
    EvolutionImporter *importer;
    LDIFImporter *gci;

    gci = g_new (LDIFImporter, 1);
    importer = evolution_importer_new (support_format_fn, load_file_fn, 
                       process_item_fn, NULL, gci);
    
    gtk_signal_connect (GTK_OBJECT (importer), "destroy",
                GTK_SIGNAL_FUNC (importer_destroy_cb), gci);
    
    return BONOBO_OBJECT (importer);
}

static void
importer_init (void)
{
    if (factory != NULL)
        return;

    factory = bonobo_generic_factory_new (COMPONENT_FACTORY_IID, 
                          factory_fn, NULL);

    if (factory == NULL) {
        g_error ("Unable to create factory");
    }

    bonobo_running_context_auto_exit_unref (BONOBO_OBJECT (factory));
}

int
main (int argc,
      char **argv)
{
    CORBA_ORB orb;
    
    gnome_init_with_popt_table ("Evolution-LDIF-Importer",
                    "0.0", argc, argv, oaf_popt_options, 0,
                    NULL);
    orb = oaf_init (argc, argv);
    if (bonobo_init (orb, CORBA_OBJECT_NIL, CORBA_OBJECT_NIL) == FALSE) {
        g_error ("Could not initialize Bonobo.");
    }

    importer_init ();
    bonobo_main ();

    return 0;
}