path: root/addressbook/importers/evolution-ldif-importer.c

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 */

/*
 * 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)
 *
 * Made re-entrant, converted to eplugin, Michael Zucchi <notzed@ximian.com>
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <ctype.h>
#include <string.h>

#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h>

#include <libebook/e-book.h>
#include <libedataserverui/e-source-selector.h>

#include <libebook/e-destination.h>

#include "e-util/e-import.h"

#include "evolution-addressbook-importers.h"

typedef struct {
    EImport *import;
    EImportTarget *target;

    guint idle_id;

    GHashTable *dn_contact_hash;

    gint state;     /* 0 - initial scan, 1 - list cards, 2 - cancelled/complete */
    FILE *file;
    gulong size;

    EBook *book;

    GSList *contacts;
    GSList *list_contacts;
    GSList *list_iterator;
} LDIFImporter;

static void ldif_import_done(LDIFImporter *gci);

static struct {
    const gchar *ldif_attribute;
    EContactField contact_field;
#define FLAG_HOME_ADDRESS   0x01
#define FLAG_WORK_ADDRESS   0x02
#define FLAG_LIST       0x04
#define FLAG_BOOLEAN        0x08
    gint flags;
}
ldif_fields[] = {
    { "cn", E_CONTACT_FULL_NAME },
    { "mail", E_CONTACT_EMAIL, FLAG_LIST },
    { "mozillaSecondEmail", E_CONTACT_EMAIL_2},
#if 0
    { "givenname", E_CONTACT_GIVEN_NAME },
#endif
    { "sn", E_CONTACT_FAMILY_NAME },
    { "xmozillanickname", E_CONTACT_NICKNAME },

    { "o", E_CONTACT_ORG },
    { "ou", E_CONTACT_ORG_UNIT },
    { "title", E_CONTACT_TITLE },

    { "locality", 0, FLAG_WORK_ADDRESS },
    { "l", 0, FLAG_WORK_ADDRESS },
    { "mozillahomelocalityname", 0, FLAG_HOME_ADDRESS },
    { "st", 0, FLAG_WORK_ADDRESS },
    { "mozillaHomeState", 0, FLAG_HOME_ADDRESS },
    { "streetaddress", 0, FLAG_WORK_ADDRESS },
    { "postalcode", 0, FLAG_WORK_ADDRESS },
    { "mozillaHomePostalCode", 0, FLAG_HOME_ADDRESS },
    { "countryname", 0, FLAG_WORK_ADDRESS },
    { "c", 0, FLAG_WORK_ADDRESS },
    { "mozillaHomeCountryName", 0, FLAG_HOME_ADDRESS },
    { "postalAddress", 0, FLAG_WORK_ADDRESS },
    { "homePostalAddress", 0, FLAG_HOME_ADDRESS },
    { "mozillaPostalAddress2", 0, FLAG_WORK_ADDRESS },
    { "mozillaHomePostalAddress2", 0, FLAG_HOME_ADDRESS },

    { "telephonenumber", E_CONTACT_PHONE_BUSINESS},
    { "homephone", E_CONTACT_PHONE_HOME },
    { "facsimiletelephonenumber", E_CONTACT_PHONE_BUSINESS_FAX },
    { "pagerphone", E_CONTACT_PHONE_PAGER },
    { "cellphone", E_CONTACT_PHONE_MOBILE },
    { "mobile", E_CONTACT_PHONE_MOBILE },

    { "homeurl", E_CONTACT_HOMEPAGE_URL },
    { "mozillaHomeUrl", E_CONTACT_HOMEPAGE_URL },

    { "description", E_CONTACT_NOTE },

    { "xmozillausehtmlmail", E_CONTACT_WANTS_HTML, FLAG_BOOLEAN },

    { "nsAIMid", E_CONTACT_IM_AIM, FLAG_LIST },
    { "mozilla_AimScreenName", E_CONTACT_IM_AIM, FLAG_LIST }
};

static GString *
getValue( gchar **src )
{
    GString *dest = g_string_new("");
    gchar *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) {
        guchar *data;
        gsize length;

        /* XXX g_string_assign_len() would be nice here */
        data = g_base64_decode (dest->str + 2, &length);
        g_string_truncate (dest, 0);
        g_string_append_len (dest, (gchar *) data, length);
        g_free (data);
    }

    *src = s;

    return dest;
}

static void
populate_contact_address (EContactAddress *address, gchar *attr, gchar *value)
{
    if (!g_ascii_strcasecmp (attr, "locality") ||
        !g_ascii_strcasecmp (attr, "l") ||
        !g_ascii_strcasecmp (attr, "mozillaHomeLocalityName"))
        address->locality = g_strdup (value);
    else if (!g_ascii_strcasecmp (attr, "countryname") ||
         !g_ascii_strcasecmp (attr, "c") ||
         !g_ascii_strcasecmp (attr, "mozillaHomeCountryName"))
        address->country = g_strdup (value);
    else if (!g_ascii_strcasecmp (attr, "postalcode") ||
         !g_ascii_strcasecmp (attr, "mozillaHomePostalCode"))
        address->code = g_strdup (value);
    else if (!g_ascii_strcasecmp (attr, "st") ||
         !g_ascii_strcasecmp (attr, "mozillaHomeState"))
        address->region = g_strdup (value);
    else if (!g_ascii_strcasecmp (attr, "streetaddress"))
        address->street = g_strdup (value);
    else if (!g_ascii_strcasecmp (attr, "mozillaPostalAddress2") ||
         !g_ascii_strcasecmp (attr, "mozillaHomePostalAddress2")) {
        if (address->ext && *address->ext) {
            gchar *temp = g_strdup (address->ext);
            g_free (address->ext);
            address->ext = g_strconcat (temp, ",\n", value, NULL);
            g_free (temp);
        }
        else {
            address->ext = g_strdup (value);
        }
    }
    else if (!g_ascii_strcasecmp (attr, "postalAddress") ||
         !g_ascii_strcasecmp (attr, "homepostalAddress")) {
        gchar *c, *i, *addr_field;

        addr_field =  g_strdup (value);
        i = addr_field;
        for (c = addr_field; *c != '\0'; c++) {
            i++;
            if (*c == ',' &&  *i != '\0' && *i == ' ') {
                *i = '\n';
            }
        }
        if (address->ext && *address->ext) {
            gchar *temp = g_strdup (address->ext);
            g_free (address->ext);
            address->ext = g_strconcat (addr_field, ",\n", temp, NULL);
            g_free (temp);
            g_free (addr_field);
        }
        else {
            address->ext = addr_field;
        }
    }
}

static gboolean
parseLine (GHashTable *dn_contact_hash, EContact *contact,
       EContactAddress *work_address, EContactAddress *home_address,
       gchar **buf)
{
    gchar *ptr;
    gchar *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 = (gchar *)strchr( ptr, ':' );
    if (colon) {
        gint i;

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

        ldif_value = getValue(&value );

        field_handled = FALSE;
        for (i = 0; i < G_N_ELEMENTS (ldif_fields); i++) {
            if (!g_ascii_strcasecmp (ptr, ldif_fields[i].ldif_attribute)) {
                if (ldif_fields[i].flags & FLAG_WORK_ADDRESS) {
                    populate_contact_address (work_address, ptr, ldif_value->str);
                }
                else if (ldif_fields[i].flags & FLAG_HOME_ADDRESS) {
                    populate_contact_address (home_address, ptr, ldif_value->str);
                }
                else if (ldif_fields[i].flags & FLAG_LIST) {
                    GList *list;

                    list = e_contact_get (contact, ldif_fields[i].contact_field);
                    list = g_list_append (list, g_strdup (ldif_value->str));
                    e_contact_set (contact, ldif_fields[i].contact_field, list);

                    g_list_foreach (list, (GFunc) g_free, NULL);
                    g_list_free (list);
                }
                else if (ldif_fields[i].flags & FLAG_BOOLEAN) {
                    if (!g_ascii_strcasecmp (ldif_value->str, "true")) {
                        e_contact_set (contact, ldif_fields[i].contact_field, GINT_TO_POINTER (TRUE));
                    }
                    else {
                        e_contact_set (contact, ldif_fields[i].contact_field, GINT_TO_POINTER (FALSE));
                    }
                    g_message ("set %s to %s", ptr, ldif_value->str);
                }
                else {
                    /* FIXME is everything a string? */
                    e_contact_set (contact, ldif_fields[i].contact_field, ldif_value->str);
                    g_message ("set %s to %s", ptr, ldif_value->str);
                }
                field_handled = TRUE;
                break;
            }
        }

        /* handle objectclass/dn/member out here */
        if (!field_handled) {
            if (!g_ascii_strcasecmp (ptr, "dn"))
                g_hash_table_insert (
                    dn_contact_hash,
                    g_strdup (ldif_value->str), contact);
            else if (!g_ascii_strcasecmp (ptr, "objectclass") &&
                !g_ascii_strcasecmp (ldif_value->str, "groupofnames")) {
                e_contact_set (
                    contact, E_CONTACT_IS_LIST,
                    GINT_TO_POINTER (TRUE));
            } else if (!g_ascii_strcasecmp (ptr, "member")) {
                GList *email;

                email = e_contact_get (contact, E_CONTACT_EMAIL);
                email = g_list_append (email, g_strdup (ldif_value->str));
                e_contact_set (contact, E_CONTACT_EMAIL, email);

                g_list_foreach (email, (GFunc) g_free, NULL);
                g_list_free (email);
            }
        }

        /* 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 EContact *
getNextLDIFEntry(GHashTable *dn_contact_hash, FILE *f )
{
    EContact *contact;
    EContactAddress *work_address, *home_address;
    GString *str;
    gchar line[1024];
    gchar *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' || (line[0] == '\r' && line[1] == '\n'))
            break;
        str = g_string_append (str, line);
    }

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

    /* now parse that entry */
    contact = e_contact_new ();
    work_address = g_new0 (EContactAddress, 1);
    home_address = g_new0 (EContactAddress, 1);

    buf = str->str;
    while (buf) {
        if (!parseLine (dn_contact_hash, contact, work_address, home_address, &buf)) {
            /* parsing error */
            g_string_free (str, TRUE);
            e_contact_address_free (work_address);
            e_contact_address_free (home_address);
            g_object_unref (contact);
            return NULL;
        }
    }

    /* fill in the address */
    if (work_address->locality || work_address->country || work_address->ext ||
        work_address->code || work_address->region || work_address->street) {
        e_contact_set (contact, E_CONTACT_ADDRESS_WORK, work_address);
    }
    if (home_address->locality || home_address->country || home_address->ext ||
        home_address->code || home_address->region || home_address->street) {
        e_contact_set (contact, E_CONTACT_ADDRESS_HOME, home_address);
    }
    e_contact_address_free (work_address);
    e_contact_address_free (home_address);

    g_string_free (str, TRUE);

    return contact;
}

static void
resolve_list_card (LDIFImporter *gci, EContact *contact)
{
    GList *email, *l;
    GList *email_attrs = NULL;
    gchar *full_name;

    /* set file_as to full_name so we don't later try and figure
           out a first/last name for the list. */
    full_name = e_contact_get (contact, E_CONTACT_FULL_NAME);
    if (full_name)
        e_contact_set (contact, E_CONTACT_FILE_AS, full_name);
    g_free (full_name);

    /* FIMXE getting might not be implemented in ebook */
    email = e_contact_get (contact, E_CONTACT_EMAIL);
    for (l = email; l; l = l->next) {
        /* mozilla stuffs dn's in the EMAIL list for contact lists */
        gchar *dn = l->data;
        EContact *dn_contact = g_hash_table_lookup (gci->dn_contact_hash, dn);

        /* break list chains here, since we don't support them just yet */
        if (dn_contact && !e_contact_get (dn_contact, E_CONTACT_IS_LIST)) {
            EDestination *dest;
            EVCardAttribute *attr = e_vcard_attribute_new (NULL, EVC_EMAIL);

            /* Hard-wired for default e-mail, since netscape only exports 1 email address */
            dest = e_destination_new ();
            e_destination_set_contact (dest, dn_contact, 0);

            e_destination_export_to_vcard_attribute (dest, attr);

            g_object_unref (dest);

            email_attrs = g_list_append (email_attrs, attr);
        }
    }
    e_contact_set_attributes (contact, E_CONTACT_EMAIL, email_attrs);

    g_list_foreach (email, (GFunc) g_free, NULL);
    g_list_free (email);
    g_list_foreach (email_attrs, (GFunc) e_vcard_attribute_free, NULL);
    g_list_free (email_attrs);
}

static void
add_to_notes (EContact *contact, EContactField field)
{
    const gchar *old_text;
    const gchar *field_text;
    gchar       *new_text;

    old_text = e_contact_get_const (contact, E_CONTACT_NOTE);
    if (old_text && strstr (old_text, e_contact_pretty_name (field)))
        return;

    field_text = e_contact_get_const (contact, field);
    if (!field_text || !*field_text)
        return;

    new_text = g_strdup_printf ("%s%s%s: %s",
                    old_text ? old_text : "",
                    old_text && *old_text &&
                    *(old_text + strlen (old_text) - 1) != '\n' ? "\n" : "",
                    e_contact_pretty_name (field), field_text);
    e_contact_set (contact, E_CONTACT_NOTE, new_text);
    g_free (new_text);
}

static gboolean
ldif_import_contacts(gpointer d)
{
    LDIFImporter *gci = d;
    EContact *contact;
    GSList *iter;
    gint count = 0;

    /* We process all normal cards immediately and keep the list
       ones till the end */

    if (gci->state == 0) {
        while (count < 50 && (contact = getNextLDIFEntry(gci->dn_contact_hash, gci->file))) {
            if (e_contact_get (contact, E_CONTACT_IS_LIST)) {
                gci->list_contacts = g_slist_prepend(gci->list_contacts, contact);
            } else {
                add_to_notes(contact, E_CONTACT_OFFICE);
                add_to_notes(contact, E_CONTACT_SPOUSE);
                add_to_notes(contact, E_CONTACT_BLOG_URL);
                e_book_add_contact(gci->book, contact, NULL);
                gci->contacts = g_slist_prepend(gci->contacts, contact);
            }
            count++;
        }
        if (contact == NULL) {
            gci->state = 1;
            gci->list_iterator = gci->list_contacts;
        }
    }
    if (gci->state == 1) {
        for (iter = gci->list_iterator;count < 50 && iter;iter=iter->next) {
            contact = iter->data;
            resolve_list_card(gci, contact);
            e_book_add_contact(gci->book, contact, NULL);
            count++;
        }
        gci->list_iterator = iter;
        if (iter == NULL)
            gci->state = 2;
    }
    if (gci->state == 2) {
        ldif_import_done(gci);
        return FALSE;
    } else {
        e_import_status (
            gci->import, gci->target, _("Importing..."),
            ftell (gci->file) * 100 / gci->size);
        return TRUE;
    }
}

static void
primary_selection_changed_cb (ESourceSelector *selector, EImportTarget *target)
{
    g_datalist_set_data_full(&target->data, "ldif-source",
                 g_object_ref(e_source_selector_peek_primary_selection(selector)),
                 g_object_unref);
}

static GtkWidget *
ldif_getwidget(EImport *ei, EImportTarget *target, EImportImporter *im)
{
    GtkWidget *vbox, *selector;
    ESource *primary;
    ESourceList *source_list;

    /* FIXME Better error handling */
    if (!e_book_get_addressbooks (&source_list, NULL))
        return NULL;

    vbox = gtk_vbox_new (FALSE, FALSE);

    selector = e_source_selector_new (source_list);
    e_source_selector_show_selection (E_SOURCE_SELECTOR (selector), FALSE);
    gtk_box_pack_start (GTK_BOX (vbox), selector, FALSE, TRUE, 6);

    primary = g_datalist_get_data(&target->data, "ldif-source");
    if (primary == NULL) {
        primary = e_source_list_peek_source_any (source_list);
        g_object_ref(primary);
        g_datalist_set_data_full (
            &target->data, "ldif-source", primary,
            (GDestroyNotify) g_object_unref);
    }
    e_source_selector_set_primary_selection (
        E_SOURCE_SELECTOR (selector), primary);
    g_object_unref (source_list);

    g_signal_connect (
        selector, "primary_selection_changed",
        G_CALLBACK (primary_selection_changed_cb), target);

    gtk_widget_show_all (vbox);

    return vbox;
}

static const gchar *supported_extensions[3] = {
    ".ldif", ".ldi", NULL
};

static gboolean
ldif_supported(EImport *ei, EImportTarget *target, EImportImporter *im)
{
    gchar *ext;
    gint i;
    EImportTargetURI *s;

    if (target->type != E_IMPORT_TARGET_URI)
        return FALSE;

    s = (EImportTargetURI *)target;
    if (s->uri_src == NULL)
        return TRUE;

    if (strncmp(s->uri_src, "file:///", 8) != 0)
        return FALSE;

    ext = strrchr(s->uri_src, '.');
    if (ext == NULL)
        return FALSE;

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

    return FALSE;
}

static void
ldif_import_done(LDIFImporter *gci)
{
    if (gci->idle_id)
        g_source_remove(gci->idle_id);

    fclose (gci->file);
    g_object_unref(gci->book);
    g_slist_foreach(gci->contacts, (GFunc) g_object_unref, NULL);
    g_slist_foreach(gci->list_contacts, (GFunc) g_object_unref, NULL);
    g_slist_free(gci->contacts);
    g_slist_free(gci->list_contacts);
    g_hash_table_destroy(gci->dn_contact_hash);

    e_import_complete(gci->import, gci->target);
    g_object_unref(gci->import);

    g_free (gci);
}

static void
ldif_import(EImport *ei, EImportTarget *target, EImportImporter *im)
{
    LDIFImporter *gci;
    EBook *book;
    FILE *file = NULL;
    EImportTargetURI *s = (EImportTargetURI *)target;
    gchar *filename;

    book = e_book_new(g_datalist_get_data(&target->data, "ldif-source"), NULL);
    if (book == NULL) {
        g_message(G_STRLOC ":Couldn't create EBook.");
        e_import_complete(ei, target);
        return;
    }

    filename = g_filename_from_uri(s->uri_src, NULL, NULL);
    if (filename != NULL) {
        file = g_fopen(filename, "r");
        g_free (filename);
    }
    if (file == NULL) {
        g_message(G_STRLOC ":Can't open .ldif file");
        e_import_complete(ei, target);
        g_object_unref(book);
        return;
    }

    gci = g_malloc0(sizeof(*gci));
    g_datalist_set_data(&target->data, "ldif-data", gci);
    gci->import = g_object_ref(ei);
    gci->target = target;
    gci->book = book;
    gci->file = file;
    fseek(file, 0, SEEK_END);
    gci->size = ftell(file);
    fseek(file, 0, SEEK_SET);
    gci->dn_contact_hash = g_hash_table_new_full (
        g_str_hash, g_str_equal,
        (GDestroyNotify) g_free,
        (GDestroyNotify) NULL);

    e_book_open(gci->book, FALSE, NULL);

    gci->idle_id = g_idle_add(ldif_import_contacts, gci);
}

static void
ldif_cancel(EImport *ei, EImportTarget *target, EImportImporter *im)
{
    LDIFImporter *gci = g_datalist_get_data(&target->data, "ldif-data");

    if (gci)
        gci->state = 2;
}

static GtkWidget *
ldif_get_preview (EImport *ei, EImportTarget *target, EImportImporter *im)
{
    GtkWidget *preview;
    GList *contacts = NULL;
    EContact *contact;
    EImportTargetURI *s = (EImportTargetURI *)target;
    gchar *filename;
    GHashTable *dn_contact_hash;
    FILE *file;

    filename = g_filename_from_uri (s->uri_src, NULL, NULL);
    if (filename == NULL) {
        g_message (G_STRLOC ": Couldn't get filename from URI '%s'", s->uri_src);
        return NULL;
    }

    file = g_fopen(filename, "r");
    g_free (filename);

    if (file == NULL) {
        g_message (G_STRLOC ": Can't open .ldif file");
        return NULL;
    }

    dn_contact_hash = g_hash_table_new_full (
        g_str_hash, g_str_equal,
        (GDestroyNotify) g_free,
        (GDestroyNotify) NULL);

    while (contact = getNextLDIFEntry (dn_contact_hash, file), contact != NULL) {
        if (!e_contact_get (contact, E_CONTACT_IS_LIST)) {
            add_to_notes(contact, E_CONTACT_OFFICE);
            add_to_notes(contact, E_CONTACT_SPOUSE);
            add_to_notes(contact, E_CONTACT_BLOG_URL);
        }

        contacts = g_list_prepend (contacts, contact);
    }

    g_hash_table_destroy (dn_contact_hash);

    contacts = g_list_reverse (contacts);
    preview = evolution_contact_importer_get_preview_widget (contacts);

    g_list_foreach (contacts, (GFunc) g_object_unref, NULL);
    g_list_free (contacts);
    fclose (file);

    return preview;
}

static EImportImporter ldif_importer = {
    E_IMPORT_TARGET_URI,
    0,
    ldif_supported,
    ldif_getwidget,
    ldif_import,
    ldif_cancel,
    ldif_get_preview,
};

EImportImporter *
evolution_ldif_importer_peek(void)
{
    ldif_importer.name = _("LDAP Data Interchange Format (.ldif)");
    ldif_importer.description = _("Evolution LDIF importer");

    return &ldif_importer;
}