path: root/mail/mail-config.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Authors: Jeffrey Stedfast <fejj@helixcode.com>
 *
 *  Copyright 2001 Helix Code, Inc. (www.helixcode.com)
 *
 *  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 Street #330, Boston, MA 02111-1307, USA.
 *
 */

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

#include <pwd.h>
#include <ctype.h>

#include <glib.h>
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-config.h>
#include <gtkhtml/gtkhtml.h>
#include <glade/glade.h>

#include <gal/util/e-util.h>
#include <e-util/e-html-utils.h>
#include "mail.h"
#include "mail-config.h"
#include "mail-ops.h"
#include "mail-mt.h"

typedef struct {
    gboolean thread_list;
    gboolean view_source;
    gint paned_size;
    gboolean send_html;
    gboolean citation_highlight;
    guint32  citation_color;
    gboolean prompt_empty_subject;
    gint seen_timeout;
    
    GSList *accounts;
    GSList *news;
    
    char *pgp_path;
    int pgp_type;
} MailConfig;

static const char GCONFPATH[] = "/apps/Evolution/Mail";
static MailConfig *config = NULL;

/* Prototypes */
static void config_read (void);

/* Identity */
MailConfigIdentity *
identity_copy (const MailConfigIdentity *id)
{
    MailConfigIdentity *new;
    
    g_return_val_if_fail (id != NULL, NULL);
    
    new = g_new0 (MailConfigIdentity, 1);
    new->name = g_strdup (id->name);
    new->address = g_strdup (id->address);
    new->organization = g_strdup (id->organization);
    new->signature = g_strdup (id->signature);
    
    return new;
}

void
identity_destroy (MailConfigIdentity *id)
{
    if (!id)
        return;
    
    g_free (id->name);
    g_free (id->address);
    g_free (id->organization);
    g_free (id->signature);
    
    g_free (id);
}

/* Service */
MailConfigService *
service_copy (const MailConfigService *source) 
{
    MailConfigService *new;
    
    g_return_val_if_fail (source != NULL, NULL);
    
    new = g_new0 (MailConfigService, 1);
    new->url = g_strdup (source->url);
    new->keep_on_server = source->keep_on_server;
    new->auto_check = source->auto_check;
    new->auto_check_time = source->auto_check_time;
    new->enabled = source->enabled;
    new->save_passwd = source->save_passwd;
    
    return new;
}

void
service_destroy (MailConfigService *source)
{
    if (!source)
        return;
    
    g_free (source->url);
    
    g_free (source);
}

void
service_destroy_each (gpointer item, gpointer data)
{
    service_destroy ((MailConfigService *)item);
}

/* Account */
MailConfigAccount *
account_copy (const MailConfigAccount *account) 
{
    MailConfigAccount *new;
    
    g_return_val_if_fail (account != NULL, NULL);
    
    new = g_new0 (MailConfigAccount, 1);
    new->name = g_strdup (account->name);
    new->default_account = account->default_account;
    
    new->id = identity_copy (account->id);
    new->source = service_copy (account->source);
    new->transport = service_copy (account->transport);
    
    new->drafts_folder_name = g_strdup (account->drafts_folder_name);
    new->drafts_folder_uri = g_strdup (account->drafts_folder_uri);
    new->sent_folder_name = g_strdup (account->sent_folder_name);
    new->sent_folder_uri = g_strdup (account->sent_folder_uri);

    return new;
}

void
account_destroy (MailConfigAccount *account)
{
    if (!account)
        return;
    
    g_free (account->name);
    
    identity_destroy (account->id);
    service_destroy (account->source);
    service_destroy (account->transport);
    
    g_free (account);
}

void
account_destroy_each (gpointer item, gpointer data)
{
    account_destroy ((MailConfigAccount *)item);
}

/* Config struct routines */
void
mail_config_init (void)
{
    if (config)
        return;
    
    config = g_new0 (MailConfig, 1);
    config_read ();
}

void
mail_config_clear (void)
{
    if (!config)
        return;
    
    if (config->accounts) {
        g_slist_foreach (config->accounts, account_destroy_each, NULL);
        g_slist_free (config->accounts);
        config->accounts = NULL;
    }
    
    if (config->news) {
        g_slist_foreach (config->news, service_destroy_each, NULL);
        g_slist_free (config->news);
        config->news = NULL;
    }

    /* overkill? */
    memset (config, 0, sizeof (MailConfig));
}

static void
config_read (void)
{
    gchar *str;
    gint len, i;
    gboolean have_default = FALSE;
    gboolean def;
    
    mail_config_clear ();
    
    /* Accounts */
    str = g_strdup_printf ("=%s/config/Mail=/Accounts/", evolution_dir);
    gnome_config_push_prefix (str);
    g_free (str);
    
    len = gnome_config_get_int ("num");
    for (i = 0; i < len; i++) {
        MailConfigAccount *account;
        MailConfigIdentity *id;
        MailConfigService *source;
        MailConfigService *transport;
        gchar *path;
        
        account = g_new0 (MailConfigAccount, 1);
        path = g_strdup_printf ("account_name_%d", i);
        account->name = gnome_config_get_string (path);
        g_free (path);
        path = g_strdup_printf ("account_is_default_%d", i);
        account->default_account = gnome_config_get_bool (path) && !have_default;
        if (account->default_account)
            have_default = TRUE;
        g_free (path);
        
        path = g_strdup_printf ("account_drafts_folder_name_%d", i);
        account->drafts_folder_name = gnome_config_get_string (path);
        g_free (path);
        path = g_strdup_printf ("account_drafts_folder_uri_%d", i);
        account->drafts_folder_uri = gnome_config_get_string (path);
        g_free (path);
        path = g_strdup_printf ("account_sent_folder_name_%d", i);
        account->sent_folder_name = gnome_config_get_string (path);
        g_free (path);
        path = g_strdup_printf ("account_sent_folder_uri_%d", i);
        account->sent_folder_uri = gnome_config_get_string (path);
        g_free (path);

        /* get the identity info */
        id = g_new0 (MailConfigIdentity, 1);        
        path = g_strdup_printf ("identity_name_%d", i);
        id->name = gnome_config_get_string (path);
        g_free (path);
        path = g_strdup_printf ("identity_address_%d", i);
        id->address = gnome_config_get_string (path);
        g_free (path);
        path = g_strdup_printf ("identity_organization_%d", i);
        id->organization = gnome_config_get_string (path);
        g_free (path);
        path = g_strdup_printf ("identity_signature_%d", i);
        id->signature = gnome_config_get_string (path);
        g_free (path);
        
        /* get the source */
        source = g_new0 (MailConfigService, 1);
        path = g_strdup_printf ("source_url_%d", i);
        source->url = gnome_config_get_string (path);
        g_free (path);
        
        if (!*source->url) {
            /* no source associated with this account */
            g_free (source->url);
            source->url = NULL;
        }
        
        path = g_strdup_printf ("source_keep_on_server_%d", i);
        source->keep_on_server = gnome_config_get_bool (path);
        g_free (path);
        path = g_strdup_printf ("source_auto_check_%d", i);
        source->auto_check = gnome_config_get_bool_with_default (path, &def);
        if (def)
            source->auto_check = FALSE;
        g_free (path);
        path = g_strdup_printf ("source_auto_check_time_%d", i);
        source->auto_check_time = gnome_config_get_int_with_default (path, &def);
        if (source->auto_check && def)
            source->auto_check = FALSE;
        g_free (path);
        path = g_strdup_printf ("source_enabled_%d", i);
        source->enabled = gnome_config_get_bool_with_default (path, &def);
        if (def)
            source->enabled = TRUE;
        g_free (path);
        path = g_strdup_printf ("source_save_passwd_%d", i);
        source->save_passwd = gnome_config_get_bool (path);
        g_free (path);
        
        /* get the transport */
        transport = g_new0 (MailConfigService, 1);
        path = g_strdup_printf ("transport_url_%d", i);
        transport->url = gnome_config_get_string (path);
        g_free (path);
        
        path = g_strdup_printf ("transport_save_passwd_%d", i);
        transport->save_passwd = gnome_config_get_bool (path);
        g_free (path);
        
        if (!*transport->url) {
            /* no transport associated with this account */
            g_free (transport->url);
            transport->url = NULL;
        }
        
        account->id = id;
        account->source = source;
        account->transport = transport;
        
        config->accounts = g_slist_append (config->accounts, account);
    }
    gnome_config_pop_prefix ();
    
#ifdef ENABLE_NNTP
    /* News */
    str = g_strdup_printf ("=%s/config/News=/Sources/", evolution_dir);
    gnome_config_push_prefix (str);
    g_free (str);
    
    len = gnome_config_get_int ("num");
    for (i = 0; i < len; i++) {
        MailConfigService *n;
        gchar *path;
        
        n = g_new0 (MailConfigService, 1);
        
        path = g_strdup_printf ("url_%d", i);
        n->url = gnome_config_get_string (path);
        g_free (path);
        
        config->news = g_slist_append (config->news, n);
    }
    gnome_config_pop_prefix ();
#endif
    
    /* Format */
    str = g_strdup_printf ("=%s/config/Mail=/Format/send_html", 
                   evolution_dir);
    config->send_html = gnome_config_get_bool_with_default (str, &def);
    if (def)
        config->send_html = FALSE;
    g_free (str);
    
    /* Citation */
    str = g_strdup_printf ("=%s/config/Mail=/Display/citation_highlight", 
                   evolution_dir);
    config->citation_highlight = gnome_config_get_bool_with_default (str, &def);
    if (def)
        config->citation_highlight = TRUE;
    g_free (str);
    str = g_strdup_printf ("=%s/config/Mail=/Display/citation_color", 
                   evolution_dir);
    config->citation_color = gnome_config_get_int_with_default (str, &def);
    if (def)
        config->citation_color = 0x737373;
    g_free (str);

    /* Mark as seen timeout */
    str = g_strdup_printf ("=%s/config/Mail=/Display/seen_timeout", 
                   evolution_dir);
    config->seen_timeout = gnome_config_get_int_with_default (str, &def);
    if (def)
        config->seen_timeout = 1500;
    g_free (str);
    
    /* Show Messages Threaded */
    str = g_strdup_printf ("=%s/config/Mail=/Display/thread_list", 
                   evolution_dir);
    config->thread_list = gnome_config_get_bool_with_default (str, &def);
    if (def)
        config->thread_list = FALSE;
    g_free (str);
    
    /* Size of vpaned in mail view */
    str = g_strdup_printf ("=%s/config/Mail=/Display/paned_size", 
                   evolution_dir);
    config->paned_size = gnome_config_get_int_with_default (str, &def);
    if (def)
        config->paned_size = 200;
    g_free (str);
    
    /* Empty Subject */
    str = g_strdup_printf ("=%s/config/Mail=/Prompts/empty_subject", 
                   evolution_dir);
    config->prompt_empty_subject = gnome_config_get_bool_with_default (str, &def);
    if (def)
        config->prompt_empty_subject = TRUE;
    g_free (str);
    
    /* PGP/GPG */
    str = g_strdup_printf ("=%s/config/Mail=/PGP/path", 
                   evolution_dir);
    config->pgp_path = gnome_config_get_string (str);
    g_free (str);
    str = g_strdup_printf ("=%s/config/Mail=/PGP/type", 
                   evolution_dir);
    config->pgp_type = gnome_config_get_int_with_default (str, &def);
    if (def)
        config->pgp_type = 0;
    g_free (str);
    
    gnome_config_sync ();
}

void
mail_config_write (void)
{
    gchar *str;
    gint len, i;
    
    /* Accounts */
    str = g_strdup_printf ("=%s/config/Mail=/Accounts/", evolution_dir);
    gnome_config_clean_section (str);
    gnome_config_sync ();
    gnome_config_push_prefix (str);
    g_free (str);
    
    len = g_slist_length (config->accounts);
    gnome_config_set_int ("num", len);
    for (i = 0; i < len; i++) {
        MailConfigAccount *account;
        gchar *path;
        
        account = g_slist_nth_data (config->accounts, i);
        
        /* account info */
        path = g_strdup_printf ("account_name_%d", i);
        gnome_config_set_string (path, account->name);
        g_free (path);
        path = g_strdup_printf ("account_is_default_%d", i);
        gnome_config_set_bool (path, account->default_account);
        g_free (path);
        path = g_strdup_printf ("account_drafts_folder_name_%d", i);
        gnome_config_set_string (path, account->drafts_folder_name);
        g_free (path);
        path = g_strdup_printf ("account_drafts_folder_uri_%d", i);
        gnome_config_set_string (path, account->drafts_folder_uri);
        g_free (path);
        path = g_strdup_printf ("account_sent_folder_name_%d", i);
        gnome_config_set_string (path, account->sent_folder_name);
        g_free (path);
        path = g_strdup_printf ("account_sent_folder_uri_%d", i);
        gnome_config_set_string (path, account->sent_folder_uri);
        g_free (path);
        
        /* identity info */
        path = g_strdup_printf ("identity_name_%d", i);
        gnome_config_set_string (path, account->id->name);
        g_free (path);
        path = g_strdup_printf ("identity_address_%d", i);
        gnome_config_set_string (path, account->id->address);
        g_free (path);
        path = g_strdup_printf ("identity_organization_%d", i);
        gnome_config_set_string (path, account->id->organization);
        g_free (path);
        path = g_strdup_printf ("identity_signature_%d", i);
        gnome_config_set_string (path, account->id->signature);
        g_free (path);
        
        /* source info */
        path = g_strdup_printf ("source_url_%d", i);
        gnome_config_set_string (path, account->source->url ? account->source->url : "");
        g_free (path);
        path = g_strdup_printf ("source_keep_on_server_%d", i);
        gnome_config_set_bool (path, account->source->keep_on_server);
        g_free (path);
        path = g_strdup_printf ("source_auto_check_%d", i);
        gnome_config_set_bool (path, account->source->auto_check);
        g_free (path);
        path = g_strdup_printf ("source_auto_check_time_%d", i);
        gnome_config_set_int (path, account->source->auto_check_time);
        g_free (path);
        path = g_strdup_printf ("source_enabled_%d", i);
        gnome_config_set_bool (path, account->source->enabled);
        g_free (path);
        path = g_strdup_printf ("source_save_passwd_%d", i);
        gnome_config_set_bool (path, account->source->save_passwd);
        g_free (path);
        
        /* transport info */
        path = g_strdup_printf ("transport_url_%d", i);
        gnome_config_set_string (path, account->transport->url ? account->transport->url : "");
        g_free (path);
        
        path = g_strdup_printf ("transport_save_passwd_%d", i);
        gnome_config_set_bool (path, account->transport->save_passwd);
        g_free (path);
    }
    gnome_config_pop_prefix ();
    
#ifdef ENABLE_NNTP
    /* News */
    str = g_strdup_printf ("=%s/config/News=/Sources/", evolution_dir);
    gnome_config_push_prefix (str);
    g_free (str);
    
    len = g_slist_length (config->news);
    gnome_config_set_int ("num", len);
    for (i = 0; i < len; i++) {
        MailConfigService *n;
        gchar *path;
        
        n = g_slist_nth_data (config->news, i);
        
        path = g_strdup_printf ("url_%d", i);
        gnome_config_set_string (path, n->url);
        g_free (path);
    }
    gnome_config_pop_prefix ();
#endif
    
    gnome_config_sync ();
}

void
mail_config_write_on_exit (void)
{
    gchar *str;
    GSList *sources;
    MailConfigService *s;
    
    /* Show Messages Threaded */
    str = g_strdup_printf ("=%s/config/Mail=/Display/thread_list", 
                   evolution_dir);
    gnome_config_set_bool (str, config->thread_list);
    g_free (str);
    
    /* Size of vpaned in mail view */
    str = g_strdup_printf ("=%s/config/Mail=/Display/paned_size", 
                   evolution_dir);
    gnome_config_set_int (str, config->paned_size);
    g_free (str);
    
    /* Mark as seen timeout */
    str = g_strdup_printf ("=%s/config/Mail=/Display/seen_timeout", 
                   evolution_dir);
    gnome_config_set_int (str, config->seen_timeout);
    g_free (str);
    
    /* Format */
    str = g_strdup_printf ("=%s/config/Mail=/Format/send_html", 
                   evolution_dir);
    gnome_config_set_bool (str, config->send_html);
    g_free (str);
    
    /* Citation */
    str = g_strdup_printf ("=%s/config/Mail=/Display/citation_highlight",
                   evolution_dir);
    gnome_config_set_bool (str, config->citation_highlight);
    g_free (str);
    str = g_strdup_printf ("=%s/config/Mail=/Display/citation_color", 
                   evolution_dir);
    gnome_config_set_int (str, config->citation_color);
    g_free (str);

    /* Empty Subject */
    str = g_strdup_printf ("=%s/config/Mail=/Prompts/empty_subject", 
                   evolution_dir);
    gnome_config_set_bool (str, config->prompt_empty_subject);
    g_free (str);
    
    /* PGP/GPG */
    str = g_strdup_printf ("=%s/config/Mail=/PGP/path", 
                   evolution_dir);
    gnome_config_set_string (str, config->pgp_path);
    g_free (str);
    str = g_strdup_printf ("=%s/config/Mail=/PGP/type", 
                   evolution_dir);
    gnome_config_set_int (str, config->pgp_type);
    g_free (str);
    
    /* Passwords */
    gnome_config_private_clean_section ("/Evolution/Passwords");
    sources = mail_config_get_sources ();
    for ( ; sources; sources = sources->next) {
        s = sources->data;
        if (s->save_passwd)
            mail_session_remember_password (s->url);
    }
    g_slist_free (sources);
    
    gnome_config_sync ();
}

/* Accessor functions */
gboolean
mail_config_is_configured (void)
{
    return config->accounts != NULL;
}

gboolean
mail_config_get_thread_list (void)
{
    return config->thread_list;
}

void
mail_config_set_thread_list (gboolean value)
{
    config->thread_list = value;
}

gboolean
mail_config_get_view_source (void)
{
    return config->view_source;
}

void
mail_config_set_view_source (gboolean value)
{
    config->view_source = value;
}

gint
mail_config_get_paned_size (void)
{
    return config->paned_size;
}

void
mail_config_set_paned_size (gint value)
{
    config->paned_size = value;
}

gboolean
mail_config_get_send_html (void)
{
    return config->send_html;
}

void
mail_config_set_send_html (gboolean send_html)
{
    config->send_html = send_html;
}

gboolean
mail_config_get_citation_highlight (void)
{
    return config->citation_highlight;
}

void
mail_config_set_citation_highlight (gboolean citation_highlight)
{
    config->citation_highlight = citation_highlight;
}

guint32
mail_config_get_citation_color (void)
{
    return config->citation_color;
}

void
mail_config_set_citation_color (guint32 citation_color)
{
    config->citation_color = citation_color;
}

gint
mail_config_get_mark_as_seen_timeout (void)
{
    return config->seen_timeout;
}

void
mail_config_set_mark_as_seen_timeout (gint timeout)
{
    config->seen_timeout = timeout;
}

gboolean
mail_config_get_prompt_empty_subject (void)
{
    return config->prompt_empty_subject;
}

void
mail_config_set_prompt_empty_subject (gboolean value)
{
    config->prompt_empty_subject = value;
}

gint
mail_config_get_pgp_type (void)
{
    return config->pgp_type;
}

void
mail_config_set_pgp_type (gint pgp_type)
{
    config->pgp_type = pgp_type;
}

const char *
mail_config_get_pgp_path (void)
{
    return config->pgp_path;
}

void
mail_config_set_pgp_path (const char *pgp_path)
{
    g_free (config->pgp_path);
    
    config->pgp_path = g_strdup (pgp_path);
}

const MailConfigAccount *
mail_config_get_default_account (void)
{
    const MailConfigAccount *account;
    GSList *l;
    
    if (!config->accounts)
        return NULL;
    
    /* find the default account */
    l = config->accounts;
    while (l) {
        account = l->data;
        if (account->default_account)
            return account;
        
        l = l->next;
    }
    
    /* none are marked as default so mark the first one as the default */
    account = config->accounts->data;
    mail_config_set_default_account (account);
    
    return account;
}

const MailConfigAccount *
mail_config_get_account_by_name (const char *account_name)
{
    /* FIXME: this should really use a hash */
    const MailConfigAccount *account;
    GSList *l;
    
    l = config->accounts;
    while (l) {
        account = l->data;
        if (account && !strcmp (account->name, account_name))
            return account;
        
        l = l->next;
    }
    
    return NULL;
}

const GSList *
mail_config_get_accounts (void)
{
    return config->accounts;
}

void
mail_config_add_account (MailConfigAccount *account)
{
    if (account->default_account) {
        /* Un-defaultify other accounts */
        GSList *node = config->accounts;
        
        while (node) {
            MailConfigAccount *acnt = node->data;
            
            acnt->default_account = FALSE;
            
            node = node->next;
        }
    }
    
    config->accounts = g_slist_append (config->accounts, account);
}

const GSList *
mail_config_remove_account (MailConfigAccount *account)
{
    config->accounts = g_slist_remove (config->accounts, account);
    account_destroy (account);
    
    return config->accounts;
}

void
mail_config_set_default_account (const MailConfigAccount *account)
{
    GSList *node = config->accounts;
    
    while (node) {
        MailConfigAccount *acnt = node->data;
        
        acnt->default_account = FALSE;
        
        node = node->next;
    }
    
    ((MailConfigAccount *) account)->default_account = TRUE;
}

const MailConfigIdentity *
mail_config_get_default_identity (void)
{
    const MailConfigAccount *account;
    
    account = mail_config_get_default_account ();
    if (account)
        return account->id;
    else
        return NULL;
}

const MailConfigService *
mail_config_get_default_transport (void)
{
    const MailConfigAccount *account;
    
    account = mail_config_get_default_account ();
    if (account)
        return account->transport;
    else
        return NULL;
}

const MailConfigService *
mail_config_get_default_news (void)
{
    if (!config->news)
        return NULL;
    
    return (MailConfigService *)config->news->data;
}

const GSList *
mail_config_get_news (void)
{
    return config->news;
}

void
mail_config_add_news (MailConfigService *news) 
{
    config->news = g_slist_append (config->news, news);
}

const GSList *
mail_config_remove_news (MailConfigService *news)
{
    config->news = g_slist_remove (config->news, news);
    service_destroy (news);
    
    return config->news;
}

GSList *
mail_config_get_sources (void)
{
    const GSList *accounts;
    GSList *sources = NULL;
    
    accounts = mail_config_get_accounts ();
    while (accounts) {
        const MailConfigAccount *account = accounts->data;
        
        if (account->source)
            sources = g_slist_append (sources, account->source);
        
        accounts = accounts->next;
    }
    
    return sources;
}

char *
mail_config_folder_to_cachename (CamelFolder *folder, const char *prefix)
{
    char *url, *filename;
    
    url = camel_url_to_string (CAMEL_SERVICE (folder->parent_store)->url, CAMEL_URL_HIDE_PASSWORD | CAMEL_URL_HIDE_PARAMS);
    e_filename_make_safe (url);
    
    filename = g_strdup_printf ("%s/config/%s%s", evolution_dir, prefix, url);
    g_free (url);
    
    return filename;
}


/* Async service-checking/authtype-lookup code. */
struct _check_msg {
    struct _mail_msg msg;

    const char *url;
    CamelProviderType type;
    GList **authtypes;
    gboolean *success;
};

static void check_service_check(struct _mail_msg *mm)
{
    struct _check_msg *m = (struct _check_msg *)mm;
    CamelService *service = NULL;

    service = camel_session_get_service (session, m->url, m->type, &mm->ex);
    if (!service)
        return;

    if (m->authtypes)
        *m->authtypes = camel_service_query_auth_types (service, &mm->ex);
    else
        camel_service_connect (service, &mm->ex);

    camel_object_unref (CAMEL_OBJECT (service));
    *m->success = !camel_exception_is_set(&mm->ex);
}

static struct _mail_msg_op check_service_op = {
    NULL,
    check_service_check,
    NULL,
    NULL
};

/**
 * mail_config_check_service:
 * @url: service url
 * @type: provider type
 * @authtypes: set to list of supported authtypes on return if non-%NULL.
 *
 * Checks the service for validity. If @authtypes is non-%NULL, it will
 * be filled in with a list of supported authtypes.
 *
 * Return value: %TRUE on success or %FALSE on error.
 **/

gboolean
mail_config_check_service (const char *url, CamelProviderType type, GList **authtypes)
{
    gboolean ret = FALSE;
    struct _check_msg *m;
    int id;

    m = mail_msg_new(&check_service_op, NULL, sizeof(*m));
    m->url = url;
    m->type = type;
    m->authtypes = authtypes;
    m->success = &ret;

    id = m->msg.seq;
    e_thread_put(mail_thread_queued, (EMsg *)m);
    mail_msg_wait(id);
    
    return ret;
}