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path: root/mail/mail-config.c
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/*
 * 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/>  
 *
 *
 * Authors:
 *      Jeffrey Stedfast <fejj@ximian.com>
 *      Radek Doulik <rodo@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <errno.h>

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

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

#ifndef G_OS_WIN32
#include <sys/wait.h>
#endif

#include <gtkhtml/gtkhtml.h>
#include <glade/glade.h>

#include <libxml/tree.h>
#include <libxml/parser.h>

#include <bonobo/bonobo-object.h>
#include <bonobo/bonobo-generic-factory.h>
#include <bonobo/bonobo-context.h>
#include <bonobo/bonobo-moniker-util.h>
#include <bonobo/bonobo-exception.h>

#include <libedataserver/e-data-server-util.h>
#include <e-util/e-util.h>
#include <misc/e-gui-utils.h>
#include "e-util/e-util-labels.h"

#include <libedataserver/e-account-list.h>
#include <e-util/e-signature-list.h>

#include <camel/camel-service.h>
#include <camel/camel-stream-mem.h>
#include <camel/camel-stream-fs.h>
#include <camel/camel-mime-filter-charset.h>
#include <camel/camel-stream-filter.h>

#include <libedataserverui/e-passwords.h>

#include "mail-component.h"
#include "mail-session.h"
#include "mail-config.h"
#include "mail-mt.h"
#include "mail-tools.h"

typedef struct {
    GConfClient *gconf;

    gboolean corrupt;

    char *gtkrc;

    EAccountList *accounts;
    ESignatureList *signatures;

    GSList *labels;

    gboolean address_compress;
    gint address_count;
    gboolean mlimit;
    gint mlimit_size;
    gboolean magic_spacebar;
    guint error_time;
    guint error_level;

    GPtrArray *mime_types;

    GSList *jh_header;
    gboolean jh_check;
    gboolean book_lookup;
    gboolean book_lookup_local_only;
    gboolean scripts_disabled;
} MailConfig;

static MailConfig *config = NULL;
static guint config_write_timeout = 0;


void
mail_config_save_accounts (void)
{
    e_account_list_save (config->accounts);
}

void
mail_config_save_signatures (void)
{
    e_signature_list_save (config->signatures);
}

static void
config_clear_mime_types (void)
{
    int i;

    for (i = 0; i < config->mime_types->len; i++)
        g_free (config->mime_types->pdata[i]);

    g_ptr_array_set_size (config->mime_types, 0);
}

static void
config_cache_mime_types (void)
{
    GSList *n, *nn;

    n = gconf_client_get_list (config->gconf, "/apps/evolution/mail/display/mime_types", GCONF_VALUE_STRING, NULL);
    while (n != NULL) {
        nn = n->next;
        g_ptr_array_add (config->mime_types, n->data);
        g_slist_free_1 (n);
        n = nn;
    }

    g_ptr_array_add (config->mime_types, NULL);
}

static void
config_write_style (void)
{
    GConfClient *client;
    gboolean custom;
    gchar *fix_font;
    gchar *var_font;
    gchar *citation_color;
    gchar *spell_color;
    const gchar *key;
    FILE *rc;

    if (!(rc = g_fopen (config->gtkrc, "wt"))) {
        g_warning ("unable to open %s", config->gtkrc);
        return;
    }

    client = config->gconf;

    key = "/apps/evolution/mail/display/fonts/use_custom";
    custom = gconf_client_get_bool (client, key, NULL);

    key = "/apps/evolution/mail/display/fonts/variable";
    var_font = gconf_client_get_string (client, key, NULL);

    key = "/apps/evolution/mail/display/fonts/monospace";
    fix_font = gconf_client_get_string (client, key, NULL);

    key = "/apps/evolution/mail/display/citation_colour";
    citation_color = gconf_client_get_string (client, key, NULL);

    key = "/apps/evolution/mail/composer/spell_color";
    spell_color = gconf_client_get_string (client, key, NULL);

    fprintf (rc, "style \"evolution-mail-custom-fonts\" {\n");
    fprintf (rc, "        GtkHTML::spell_error_color = \"%s\"\n", spell_color);
    g_free (spell_color);

    if (gconf_client_get_bool (config->gconf, "/apps/evolution/mail/display/mark_citations", NULL))
        fprintf (rc, "        GtkHTML::cite_color = \"%s\"\n",
             citation_color);
    g_free (citation_color);

    if (custom && var_font && fix_font) {
        fprintf (rc,
             "        GtkHTML::fixed_font_name = \"%s\"\n"
             "        font_name = \"%s\"\n",
             fix_font, var_font);
    }
    g_free (fix_font);
    g_free (var_font);

    fprintf (rc, "}\n\n");

    fprintf (rc, "widget \"*.EMFolderView.*.GtkHTML\" style \"evolution-mail-custom-fonts\"\n");
    fprintf (rc, "widget \"*.EMFolderBrowser.*.GtkHTML\" style \"evolution-mail-custom-fonts\"\n");
    fprintf (rc, "widget \"*.EMMessageBrowser.*.GtkHTML\" style \"evolution-mail-custom-fonts\"\n");
    fprintf (rc, "widget \"EMsgComposer.*.GtkHTML\" style \"evolution-mail-custom-fonts\"\n");
    fprintf (rc, "widget \"*.EvolutionMailPrintHTMLWidget\" style \"evolution-mail-custom-fonts\"\n");
    fflush (rc);
    fclose (rc);

    gtk_rc_reparse_all ();
}

static void
config_clear_labels (void)
{
    if (!config)
        return;

    e_util_labels_free (config->labels);
    config->labels = NULL;
}

static void
config_cache_labels (GConfClient *client)
{
    if (!config)
        return;

    config->labels = e_util_labels_parse (client);
}

static void
gconf_labels_changed (GConfClient *client, guint cnxn_id,
              GConfEntry *entry, gpointer user_data)
{
    config_clear_labels ();
    config_cache_labels (client);
}

static void
gconf_style_changed (GConfClient *client, guint cnxn_id,
             GConfEntry *entry, gpointer user_data)
{
    config_write_style ();
}

static void
gconf_outlook_filenames_changed (GConfClient *client, guint cnxn_id,
                 GConfEntry *entry, gpointer user_data)
{
    extern int camel_header_param_encode_filenames_in_rfc_2047;

    g_return_if_fail (client != NULL);

    /* pass option to the camel */
    if (gconf_client_get_bool (client, "/apps/evolution/mail/composer/outlook_filenames", NULL)) {
        camel_header_param_encode_filenames_in_rfc_2047 = 1;
    } else {
        camel_header_param_encode_filenames_in_rfc_2047 = 0;
    }
}

static void
gconf_jh_check_changed (GConfClient *client, guint cnxn_id,
             GConfEntry *entry, gpointer user_data)
{
    config->jh_check = gconf_client_get_bool (config->gconf, "/apps/evolution/mail/junk/check_custom_header", NULL);
    if (!config->jh_check) {
        mail_session_set_junk_headers (NULL, NULL, 0);
    } else {
        GSList *node;
        GPtrArray *name, *value;

        config->jh_header = gconf_client_get_list (config->gconf, "/apps/evolution/mail/junk/custom_header", GCONF_VALUE_STRING, NULL);
        node = config->jh_header;
        name = g_ptr_array_new ();
        value = g_ptr_array_new ();
        while (node && node->data) {
            char **tok = g_strsplit (node->data, "=", 2);
            g_ptr_array_add (name, g_strdup(tok[0]));
            g_ptr_array_add (value, g_strdup(tok[1]));
            node = node->next;
            g_strfreev (tok);
        }
        mail_session_set_junk_headers ((const char **)name->pdata, (const char **)value->pdata, name->len);
        g_ptr_array_free (name, TRUE);
        g_ptr_array_free (value, TRUE);
    }
}

static void
gconf_jh_headers_changed (GConfClient *client, guint cnxn_id,
                          GConfEntry *entry, gpointer user_data)
{
    GSList *node;
    GPtrArray *name, *value;

    config->jh_header = gconf_client_get_list (config->gconf, "/apps/evolution/mail/junk/custom_header", GCONF_VALUE_STRING, NULL);
    node = config->jh_header;
    name = g_ptr_array_new ();
    value = g_ptr_array_new ();
    while (node && node->data) {
        char **tok = g_strsplit (node->data, "=", 2);
        g_ptr_array_add (name, g_strdup(tok[0]));
        g_ptr_array_add (value, g_strdup(tok[1]));
        node = node->next;
        g_strfreev (tok);
    }
    mail_session_set_junk_headers ((const char **)name->pdata, (const char **)value->pdata, name->len);
}

static void
gconf_bool_value_changed (GConfClient *client,
                          guint cnxn_id,
                          GConfEntry *entry,
                          gboolean *save_location)
{
    GError *error = NULL;

    *save_location = gconf_client_get_bool (client, entry->key, &error);
    if (error != NULL) {
        g_warning ("%s", error->message);
        g_error_free (error);
    }
}

static void
gconf_int_value_changed (GConfClient *client,
                         guint cnxn_id,
                         GConfEntry *entry,
                         gint *save_location)
{
    GError *error = NULL;

    *save_location = gconf_client_get_int (client, entry->key, &error);
    if (error != NULL) {
        g_warning ("%s", error->message);
        g_error_free (error);
    }
}

static void
gconf_mime_types_changed (GConfClient *client, guint cnxn_id,
                          GConfEntry *entry, gpointer user_data)
{
    config_clear_mime_types ();
    config_cache_mime_types ();
}

/* Config struct routines */
void
mail_config_init (void)
{
    GConfClientNotifyFunc func;
    const gchar *key;

    if (config)
        return;

    config = g_new0 (MailConfig, 1);
    config->gconf = gconf_client_get_default ();
    config->mime_types = g_ptr_array_new ();
    config->gtkrc = g_build_filename (
        e_get_user_data_dir (), "mail",
        "config", "gtkrc-mail-fonts", NULL);

    mail_config_clear ();

    config->accounts = e_account_list_new (config->gconf);
    config->signatures = e_signature_list_new (config->gconf);

    gtk_rc_parse (config->gtkrc);

    /* Composer Configuration */

    gconf_client_add_dir (
        config->gconf, "/apps/evolution/mail/composer",
        GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);

    key = "/apps/evolution/mail/composer/spell_color";
    func = (GConfClientNotifyFunc) gconf_style_changed;
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);

    key = "/apps/evolution/mail/composer/outlook_filenames";
    func = (GConfClientNotifyFunc) gconf_outlook_filenames_changed;
    gconf_outlook_filenames_changed (config->gconf, 0, NULL, NULL);
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);

    /* Display Configuration */

    gconf_client_add_dir (
        config->gconf, "/apps/evolution/mail/display",
        GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);

    key = "/apps/evolution/mail/display/address_compress";
    func = (GConfClientNotifyFunc) gconf_bool_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->address_compress, NULL, NULL);
    config->address_compress =
        gconf_client_get_bool (config->gconf, key, NULL);

    key = "/apps/evolution/mail/display/address_count";
    func = (GConfClientNotifyFunc) gconf_int_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->address_count, NULL, NULL);
    config->address_count =
        gconf_client_get_int (config->gconf, key, NULL);

    key = "/apps/evolution/mail/display/citation_colour";
    func = (GConfClientNotifyFunc) gconf_style_changed;
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);

    key = "/apps/evolution/mail/display/error_timeout";
    func = (GConfClientNotifyFunc) gconf_int_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->error_time, NULL, NULL);
    config->error_time =
        gconf_client_get_int (config->gconf, key, NULL);    

    key = "/apps/evolution/mail/display/error_level";
    func = (GConfClientNotifyFunc) gconf_int_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->error_level, NULL, NULL);
    config->error_level =
        gconf_client_get_int (config->gconf, key, NULL);    

    key = "/apps/evolution/mail/display/force_message_limit";
    func = (GConfClientNotifyFunc) gconf_bool_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->mlimit, NULL, NULL);
    config->mlimit =
        gconf_client_get_bool (config->gconf, key, NULL);

    key = "/apps/evolution/mail/display/message_text_part_limit";
    func = (GConfClientNotifyFunc) gconf_int_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->mlimit_size, NULL, NULL);
    config->mlimit_size =
        gconf_client_get_int (config->gconf, key, NULL);

    key = "/apps/evolution/mail/display/magic_spacebar";
    func = (GConfClientNotifyFunc) gconf_bool_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->magic_spacebar, NULL, NULL);
    config->magic_spacebar =
        gconf_client_get_bool (config->gconf, key, NULL);

    key = "/apps/evolution/mail/display/mark_citations";
    func = (GConfClientNotifyFunc) gconf_style_changed;
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);

    /* Font Configuration */

    gconf_client_add_dir (
        config->gconf, "/apps/evolution/mail/display/fonts",
        GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);

    key = "/apps/evolution/mail/display/fonts";
    func = (GConfClientNotifyFunc) gconf_style_changed;
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);

    /* Label Configuration */

    gconf_client_add_dir (
        config->gconf, E_UTIL_LABELS_GCONF_KEY,
        GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);

    gconf_client_notify_add (
        config->gconf, E_UTIL_LABELS_GCONF_KEY,
        gconf_labels_changed, NULL, NULL, NULL);

    config_cache_labels (config->gconf);

    /* MIME Type Configuration */

    gconf_client_add_dir (
        config->gconf, "/apps/evolution/mail/mime_types",
        GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);

    key = "/apps/evolution/mail/mime_types";
    func = (GConfClientNotifyFunc) gconf_mime_types_changed,
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);

    config_cache_mime_types ();

    /* Junk Configuration */

    gconf_client_add_dir (
        config->gconf, "/apps/evolution/mail/junk",
        GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);

    key = "/apps/evolution/mail/junk/check_custom_header";
    func = (GConfClientNotifyFunc) gconf_jh_check_changed;
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);
    config->jh_check =
        gconf_client_get_bool (config->gconf, key, NULL);

    key = "/apps/evolution/mail/junk/custom_header";
    func = (GConfClientNotifyFunc) gconf_jh_headers_changed;
    gconf_client_notify_add (
        config->gconf, key, func, NULL, NULL, NULL);

    key = "/apps/evolution/mail/junk/lookup_addressbook";
    func = (GConfClientNotifyFunc) gconf_bool_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->book_lookup, NULL, NULL);
    config->book_lookup =
        gconf_client_get_bool (config->gconf, key, NULL);

    key = "/apps/evolution/mail/junk/lookup_addressbook_local_only";
    func = (GConfClientNotifyFunc) gconf_bool_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->book_lookup_local_only, NULL, NULL);
    config->book_lookup_local_only =
        gconf_client_get_bool (config->gconf, key, NULL);

    key = "/desktop/gnome/lockdown/disable_command_line";
    func = (GConfClientNotifyFunc) gconf_bool_value_changed;
    gconf_client_notify_add (
        config->gconf, key, func,
        &config->scripts_disabled, NULL, NULL);
    config->scripts_disabled =
        gconf_client_get_bool (config->gconf, key, NULL);

    gconf_jh_check_changed (config->gconf, 0, NULL, config);
}

void
mail_config_clear (void)
{
    if (!config)
        return;

    if (config->accounts) {
        g_object_unref (config->accounts);
        config->accounts = NULL;
    }

    if (config->signatures) {
        g_object_unref (config->signatures);
        config->signatures = NULL;
    }

    config_clear_labels ();
    config_clear_mime_types ();
}


void
mail_config_write (void)
{
    if (!config)
        return;

    e_account_list_save (config->accounts);
    e_signature_list_save (config->signatures);

    gconf_client_suggest_sync (config->gconf, NULL);
}

void
mail_config_write_on_exit (void)
{
    EAccount *account;
    EIterator *iter;

    if (config_write_timeout) {
        g_source_remove (config_write_timeout);
        config_write_timeout = 0;
        mail_config_write ();
    }

    /* Passwords */

    /* then we make sure the ones we want to remember are in the
           session cache */
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        char *passwd;

        account = (EAccount *) e_iterator_get (iter);

        if (account->source->save_passwd && account->source->url && account->source->url[0]) {
            passwd = mail_session_get_password (account->source->url);
            mail_session_forget_password (account->source->url);
            mail_session_add_password (account->source->url, passwd);
            g_free (passwd);
        }

        if (account->transport->save_passwd && account->transport->url && account->transport->url[0]) {
            passwd = mail_session_get_password (account->transport->url);
            mail_session_forget_password (account->transport->url);
            mail_session_add_password (account->transport->url, passwd);
            g_free (passwd);
        }

        e_iterator_next (iter);
    }

    g_object_unref (iter);

    /* then we clear out our component passwords */
    e_passwords_clear_passwords ("Mail");

    /* then we remember them */
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);

        if (account->source->save_passwd && account->source->url && account->source->url[0])
            mail_session_remember_password (account->source->url);

        if (account->transport->save_passwd && account->transport->url && account->transport->url[0])
            mail_session_remember_password (account->transport->url);

        e_iterator_next (iter);
    }

    /* now do cleanup */
    mail_config_clear ();

    g_object_unref (config->gconf);
    g_ptr_array_free (config->mime_types, TRUE);

    g_free (config->gtkrc);

    g_free (config);
}

/* Accessor functions */
GConfClient *
mail_config_get_gconf_client (void)
{
    if (!config)
        mail_config_init ();

    return config->gconf;
}

gboolean
mail_config_is_configured (void)
{
    return e_list_length ((EList *) config->accounts) > 0;
}

gboolean
mail_config_is_corrupt (void)
{
    return config->corrupt;
}

int
mail_config_get_address_count (void)
{
    if (!config->address_compress)
        return -1;

    return config->address_count;
}

guint
mail_config_get_error_timeout  (void)
{   
    if (!config)
        mail_config_init ();

    return config->error_time;
}

guint
mail_config_get_error_level  (void)
{   
    if (!config)
        mail_config_init ();

    return config->error_level;
}

int
mail_config_get_message_limit (void)
{
    if (!config->mlimit)
        return -1;

    return config->mlimit_size;
}

/* timeout interval, in seconds, when to call server update */
gint
mail_config_get_sync_timeout (void)
{
    GConfClient *gconf = mail_config_get_gconf_client ();
    gint res = 60;

    if (gconf) {
        GError *error = NULL;

        res = gconf_client_get_int (gconf, "/apps/evolution/mail/sync_interval", &error);

        /* do not allow recheck sooner than every 30 seconds */
        if (error || res == 0)
            res = 60;
        else if (res < 30)
            res = 30;

        if (error)
            g_error_free (error);
    }

    return res;
}

gboolean
mail_config_get_enable_magic_spacebar ()
{
    return config->magic_spacebar;
}

/**
 * mail_config_get_labels
 *
 * @return list of known labels, each member data is EUtilLabel structure.
 *         Returned list should not be freed, neither data inside it.
 **/
GSList *
mail_config_get_labels (void)
{
    return config->labels;
}

const char **
mail_config_get_allowable_mime_types (void)
{
    return (const char **) config->mime_types->pdata;
}

gboolean
mail_config_find_account (EAccount *account)
{
    EAccount *acnt;
    EIterator *iter;

    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        acnt = (EAccount *) e_iterator_get (iter);
        if (acnt == account) {
            g_object_unref (iter);
            return TRUE;
        }

        e_iterator_next (iter);
    }

    g_object_unref (iter);

    return FALSE;
}

EAccount *
mail_config_get_default_account (void)
{
    if (config == NULL)
        mail_config_init ();

    if (!config->accounts)
        return NULL;

    /* should probably return const */
    return (EAccount *)e_account_list_get_default(config->accounts);
}

EAccount *
mail_config_get_account_by_name (const char *account_name)
{
    return (EAccount *)e_account_list_find(config->accounts, E_ACCOUNT_FIND_NAME, account_name);
}

EAccount *
mail_config_get_account_by_uid (const char *uid)
{
    return (EAccount *) e_account_list_find (config->accounts, E_ACCOUNT_FIND_UID, uid);
}

static gboolean
mail_config_account_url_equal (const CamelURL *u1,
                               const CamelURL *u2)
{
    /* For the purpose of matching a URL to an EAccount, only compare
     * the protocol, user, host and port and disregard the rest. */

    if (g_strcmp0 (u1->protocol, u2->protocol) != 0)
        return FALSE;

    if (g_strcmp0 (u1->user, u2->user) != 0)
        return FALSE;

    if (g_strcmp0 (u1->host, u2->host) != 0)
        return FALSE;

    return (u1->port == u2->port);
}

EAccount *
mail_config_get_account_by_source_url (const char *source_url)
{
    EAccount *account = NULL;
    EIterator *iter;
    CamelURL *url;

    g_return_val_if_fail (source_url != NULL, NULL);

    url = camel_url_new (source_url, NULL);
    g_return_val_if_fail (url != NULL, NULL);

    iter = e_list_get_iterator ((EList *) config->accounts);
    while (account == NULL && e_iterator_is_valid (iter)) {
        CamelURL *account_url;

        account = (EAccount *) e_iterator_get (iter);

        e_iterator_next (iter);

        if ( !account || (account->source == NULL) || 
            (account->source->url == NULL) || (*account->source->url == '\0')) {
            account = NULL;
            continue;
        }

        account_url = camel_url_new (account->source->url, NULL);
        if (account_url == NULL) {
            account = NULL;
            continue;
        }

        if (!mail_config_account_url_equal (url, account_url))
            account = NULL;  /* not a match */

        camel_url_free (account_url);
    }

    g_object_unref (iter);

    return account;
}

EAccount *
mail_config_get_account_by_transport_url (const char *transport_url)
{
    EAccount *account = NULL;
    EIterator *iter;
    CamelURL *url;

    g_return_val_if_fail (transport_url != NULL, NULL);

    url = camel_url_new (transport_url, NULL);
    g_return_val_if_fail (url != NULL, NULL);

    iter = e_list_get_iterator ((EList *) config->accounts);
    while (account == NULL && e_iterator_is_valid (iter)) {
        CamelURL *account_url;

        account = (EAccount *) e_iterator_get (iter);

        e_iterator_next (iter);

        if ( !account || (account->transport == NULL) || 
            (account->transport->url == NULL) || (*account->transport->url == '\0')) {
                account = NULL;
                continue;
        }

        account_url = camel_url_new (account->transport->url, NULL);
        if (account_url == NULL) {
            account = NULL;
            continue;
        }

        if (!mail_config_account_url_equal (url, account_url))
            account = NULL;  /* not a match */

        camel_url_free (account_url);
    }

    g_object_unref (iter);

    return account;
}

int
mail_config_has_proxies (EAccount *account)
{
    return e_account_list_account_has_proxies (config->accounts, account);
}

void
mail_config_remove_account_proxies (EAccount *account)
{
    e_account_list_remove_account_proxies (config->accounts, account);
}

void
mail_config_prune_proxies (void)
{
    e_account_list_prune_proxies (config->accounts);
}

EAccountList *
mail_config_get_accounts (void)
{
    if (config == NULL)
        mail_config_init ();

    return config->accounts;
}

void
mail_config_add_account (EAccount *account)
{
    e_account_list_add(config->accounts, account);
    mail_config_save_accounts ();
}

void
mail_config_remove_account (EAccount *account)
{
    e_account_list_remove(config->accounts, account);
    mail_config_save_accounts ();
}

void
mail_config_set_default_account (EAccount *account)
{
    e_account_list_set_default(config->accounts, account);
}

EAccountIdentity *
mail_config_get_default_identity (void)
{
    EAccount *account;

    account = mail_config_get_default_account ();
    if (account)
        return account->id;
    else
        return NULL;
}

EAccountService *
mail_config_get_default_transport (void)
{
    EAccount *account;
    EIterator *iter;

    account = mail_config_get_default_account ();
    if (account && account->enabled && account->transport && account->transport->url && account->transport->url[0])
        return account->transport;

    /* return the first account with a transport? */
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);

        if (account->enabled && account->transport && account->transport->url && account->transport->url[0]) {
            g_object_unref (iter);

            return account->transport;
        }

        e_iterator_next (iter);
    }

    g_object_unref (iter);

    return NULL;
}

static char *
uri_to_evname (const char *uri, const char *prefix)
{
    const char *base_directory = mail_component_peek_base_directory (mail_component_peek ());
    char *safe;
    char *tmp;

    safe = g_strdup (uri);
    e_filename_make_safe (safe);
    /* blah, easiest thing to do */
    if (prefix[0] == '*')
        tmp = g_strdup_printf ("%s/%s%s.xml", base_directory, prefix + 1, safe);
    else
        tmp = g_strdup_printf ("%s/%s%s", base_directory, prefix, safe);
    g_free (safe);
    return tmp;
}

void
mail_config_uri_renamed (GCompareFunc uri_cmp, const char *old, const char *new)
{
    EAccount *account;
    EIterator *iter;
    int i, work = 0;
    char *oldname, *newname;
    char *cachenames[] = { "config/hidestate-",
                   "config/et-expanded-",
                   "config/et-header-",
                   "*views/current_view-",
                   "*views/custom_view-",
                   NULL };

    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);

        if (account->sent_folder_uri && uri_cmp (account->sent_folder_uri, old)) {
            g_free (account->sent_folder_uri);
            account->sent_folder_uri = g_strdup (new);
            work = 1;
        }

        if (account->drafts_folder_uri && uri_cmp (account->drafts_folder_uri, old)) {
            g_free (account->drafts_folder_uri);
            account->drafts_folder_uri = g_strdup (new);
            work = 1;
        }

        e_iterator_next (iter);
    }

    g_object_unref (iter);

    /* ignore return values or if the files exist or
     * not, doesn't matter */

    for (i = 0; cachenames[i]; i++) {
        oldname = uri_to_evname (old, cachenames[i]);
        newname = uri_to_evname (new, cachenames[i]);
        /*printf ("** renaming %s to %s\n", oldname, newname);*/
        g_rename (oldname, newname);
        g_free (oldname);
        g_free (newname);
    }

    /* nasty ... */
    if (work)
        mail_config_write ();
}

void
mail_config_uri_deleted (GCompareFunc uri_cmp, const char *uri)
{
    EAccount *account;
    EIterator *iter;
    int work = 0;
    /* assumes these can't be removed ... */
    const char *default_sent_folder_uri = mail_component_get_folder_uri(NULL, MAIL_COMPONENT_FOLDER_SENT);
    const char *default_drafts_folder_uri = mail_component_get_folder_uri(NULL, MAIL_COMPONENT_FOLDER_DRAFTS);

    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);

        if (account->sent_folder_uri && uri_cmp (account->sent_folder_uri, uri)) {
            g_free (account->sent_folder_uri);
            account->sent_folder_uri = g_strdup (default_sent_folder_uri);
            work = 1;
        }

        if (account->drafts_folder_uri && uri_cmp (account->drafts_folder_uri, uri)) {
            g_free (account->drafts_folder_uri);
            account->drafts_folder_uri = g_strdup (default_drafts_folder_uri);
            work = 1;
        }

        e_iterator_next (iter);
    }

    /* nasty again */
    if (work)
        mail_config_write ();
}

void
mail_config_service_set_save_passwd (EAccountService *service, gboolean save_passwd)
{
    service->save_passwd = save_passwd;
}

char *
mail_config_folder_to_safe_url (CamelFolder *folder)
{
    char *url;

    url = mail_tools_folder_to_url (folder);
    e_filename_make_safe (url);

    return url;
}

char *
mail_config_folder_to_cachename (CamelFolder *folder, const char *prefix)
{
    char *url, *basename, *filename;
    const char *evolution_dir;

    evolution_dir = mail_component_peek_base_directory (mail_component_peek ());

    url = mail_config_folder_to_safe_url (folder);
    basename = g_strdup_printf ("%s%s", prefix, url);
    filename = g_build_filename (evolution_dir, "config", basename, NULL);
    g_free (basename);
    g_free (url);

    return filename;
}

ESignatureList *
mail_config_get_signatures (void)
{
    return config->signatures;
}

static char *
get_new_signature_filename (void)
{
    const char *base_directory;
    char *filename, *id;
    struct stat st;
    int i;

    base_directory = e_get_user_data_dir ();
    filename = g_build_filename (base_directory, "signatures", NULL);
    if (g_lstat (filename, &st)) {
        if (errno == ENOENT) {
            if (g_mkdir (filename, 0700))
                g_warning ("Fatal problem creating %s directory.", filename);
        } else
            g_warning ("Fatal problem with %s directory.", filename);
    }
    g_free (filename);

    filename = g_malloc (strlen (base_directory) + sizeof ("/signatures/signature-") + 12);
    id = g_stpcpy (filename, base_directory);
    id = g_stpcpy (id, "/signatures/signature-");

    for (i = 0; i < (INT_MAX - 1); i++) {
        sprintf (id, "%d", i);
        if (g_lstat (filename, &st) == -1 && errno == ENOENT) {
            int fd;

            fd = g_creat (filename, 0600);
            if (fd >= 0) {
                close (fd);
                return filename;
            }
        }
    }

    g_free (filename);

    return NULL;
}


ESignature *
mail_config_signature_new (const char *filename, gboolean script, gboolean html)
{
    ESignature *sig;

    sig = e_signature_new ();
    sig->name = g_strdup (_("Unnamed"));
    sig->script = script;
    sig->html = html;

    if (filename == NULL)
        sig->filename = get_new_signature_filename ();
    else
        sig->filename = g_strdup (filename);

    return sig;
}

ESignature *
mail_config_get_signature_by_uid (const char *uid)
{
    return (ESignature *) e_signature_list_find (config->signatures, E_SIGNATURE_FIND_UID, uid);
}

ESignature *
mail_config_get_signature_by_name (const char *name)
{
    return (ESignature *) e_signature_list_find (config->signatures, E_SIGNATURE_FIND_NAME, name);
}

void
mail_config_add_signature (ESignature *signature)
{
    e_signature_list_add (config->signatures, signature);
    mail_config_save_signatures ();
}

void
mail_config_remove_signature (ESignature *signature)
{
    if (signature->filename && !signature->script)
        g_unlink (signature->filename);

    e_signature_list_remove (config->signatures, signature);
    mail_config_save_signatures ();
}

void
mail_config_reload_junk_headers (void)
{
    /* It automatically sets in the session */
    if (config == NULL)
        mail_config_init ();
    else 
        gconf_jh_check_changed (config->gconf, 0, NULL, config);

}

gboolean
mail_config_get_lookup_book (void)
{
    /* It automatically sets in the session */
    if (config == NULL)
        mail_config_init ();

    return config->book_lookup;
}

gboolean
mail_config_get_lookup_book_local_only (void)
{
    /* It automatically sets in the session */
    if (config == NULL)
        mail_config_init ();

    return config->book_lookup_local_only;
}

gboolean
mail_config_scripts_disabled (void)
{
    if (config == NULL)
        mail_config_init ();

    return config->scripts_disabled;
}

char *
mail_config_signature_run_script (const char *script)
{
#ifndef G_OS_WIN32
    int result, status;
    int in_fds[2];
    pid_t pid;

    if (mail_config_scripts_disabled ())
        return NULL;

    if (pipe (in_fds) == -1) {
        g_warning ("Failed to create pipe to '%s': %s", script, g_strerror (errno));
        return NULL;
    }

    if (!(pid = fork ())) {
        /* child process */
        int maxfd, i;

        close (in_fds [0]);
        if (dup2 (in_fds[1], STDOUT_FILENO) < 0)
            _exit (255);
        close (in_fds [1]);

        setsid ();

        maxfd = sysconf (_SC_OPEN_MAX);
        for (i = 3; i < maxfd; i++) {
            if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO)
                fcntl (i, F_SETFD, FD_CLOEXEC);
        }

        execlp("/bin/sh", "/bin/sh", "-c", script, NULL);
        g_warning ("Could not execute %s: %s\n", script, g_strerror (errno));
        _exit (255);
    } else if (pid < 0) {
        g_warning ("Failed to create create child process '%s': %s", script, g_strerror (errno));
        close (in_fds [0]);
        close (in_fds [1]);
        return NULL;
    } else {
        CamelStreamFilter *filtered_stream;
        CamelStreamMem *memstream;
        CamelMimeFilter *charenc;
        CamelStream *stream;
        GByteArray *buffer;
        char *charset;
        char *content;

        /* parent process */
        close (in_fds[1]);

        stream = camel_stream_fs_new_with_fd (in_fds[0]);

        memstream = (CamelStreamMem *) camel_stream_mem_new ();
        buffer = g_byte_array_new ();
        camel_stream_mem_set_byte_array (memstream, buffer);

        camel_stream_write_to_stream (stream, (CamelStream *) memstream);
        camel_object_unref (stream);

        /* signature scripts are supposed to generate UTF-8 content, but because users
           are known to not ever read the manual... we try to do our best if the
                   content isn't valid UTF-8 by assuming that the content is in the user's
           preferred charset. */
        if (!g_utf8_validate ((char *)buffer->data, buffer->len, NULL)) {
            stream = (CamelStream *) memstream;
            memstream = (CamelStreamMem *) camel_stream_mem_new ();
            camel_stream_mem_set_byte_array (memstream, g_byte_array_new ());

            filtered_stream = camel_stream_filter_new_with_stream (stream);
            camel_object_unref (stream);

            charset = gconf_client_get_string (config->gconf, "/apps/evolution/mail/composer/charset", NULL);
            if (charset && *charset) {
                if ((charenc = (CamelMimeFilter *) camel_mime_filter_charset_new_convert (charset, "utf-8"))) {
                    camel_stream_filter_add (filtered_stream, charenc);
                    camel_object_unref (charenc);
                }
            }
            g_free (charset);

            camel_stream_write_to_stream ((CamelStream *) filtered_stream, (CamelStream *) memstream);
            camel_object_unref (filtered_stream);
            g_byte_array_free (buffer, TRUE);

            buffer = memstream->buffer;
        }

        camel_object_unref (memstream);

        g_byte_array_append (buffer, (const unsigned char *)"", 1);
        content = (char *)buffer->data;
        g_byte_array_free (buffer, FALSE);

        /* wait for the script process to terminate */
        result = waitpid (pid, &status, 0);

        if (result == -1 && errno == EINTR) {
            /* child process is hanging... */
            kill (pid, SIGTERM);
            sleep (1);
            result = waitpid (pid, &status, WNOHANG);
            if (result == 0) {
                /* ...still hanging, set phasers to KILL */
                kill (pid, SIGKILL);
                sleep (1);
                result = waitpid (pid, &status, WNOHANG);
            }
        }

        return content;
    }
#else
    return NULL;
#endif
}