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path: root/mail/mail-config.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Authors: Jeffrey Stedfast <fejj@ximian.com>
 *           Radek Doulik     <rodo@ximian.com>
 *
 *  Copyright 2001 Ximian, Inc. (www.ximian.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */


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

#include <pwd.h>
#include <ctype.h>
#include <sys/wait.h>
#include <signal.h>
#include <errno.h>
#include <string.h>

#include <glib.h>
#include <gtk/gtkdialog.h>
#include <gtkhtml/gtkhtml.h>
#include <glade/glade.h>

#include <gconf/gconf.h>
#include <gconf/gconf-client.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 <shell/evolution-shell-client.h>

#include <gal/util/e-util.h>
#include <gal/widgets/e-gui-utils.h>
#include <e-util/e-url.h>
#include <e-util/e-passwords.h>
#include "mail.h"
#include "mail-config.h"
#include "mail-mt.h"
#include "mail-tools.h"

#include "Mailer.h"


MailConfigLabel label_defaults[5] = {
    { N_("Important"), 0x00ff0000, NULL },  /* red */
    { N_("Work"),      0x00ff8c00, NULL },  /* orange */
    { N_("Personal"),  0x00008b00, NULL },  /* forest green */
    { N_("To Do"),     0x000000ff, NULL },  /* blue */
    { N_("Later"),     0x008b008b, NULL }   /* magenta */
};

typedef struct {
    GConfClient *gconf;
    
    gboolean corrupt;
    
    EAccountList *accounts;
    guint accounts_notify_id;
    
    GHashTable *threaded_hash;
    
    GSList *signatures;
    int sig_nextid;
    
    MailConfigLabel labels[5];
    
    gboolean signature_info;
    
    /* readonly fields from calendar */
    int time_24hour;
} MailConfig;

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

#define MAIL_CONFIG_IID "OAFIID:GNOME_Evolution_MailConfig_Factory"

/* signatures */
MailConfigSignature *
signature_copy (const MailConfigSignature *sig)
{
    MailConfigSignature *ns;
    
    g_return_val_if_fail (sig != NULL, NULL);
    
    ns = g_new (MailConfigSignature, 1);
    
    ns->id = sig->id;
    ns->name = g_strdup (sig->name);
    ns->filename = g_strdup (sig->filename);
    ns->script = g_strdup (sig->script);
    ns->html = sig->html;
    
    return ns;
}

void
signature_destroy (MailConfigSignature *sig)
{
    g_free (sig->name);
    g_free (sig->filename);
    g_free (sig->script);
    g_free (sig);
}

static gboolean
xml_get_bool (xmlNodePtr node, const char *name)
{
    gboolean bool = FALSE;
    char *buf;
    
    if ((buf = xmlGetProp (node, name))) {
        bool = (!strcmp (buf, "true") || !strcmp (buf, "yes"));
        xmlFree (buf);
    }
    
    return bool;
}

static int
xml_get_int (xmlNodePtr node, const char *name)
{
    int number = 0;
    char *buf;
    
    if ((buf = xmlGetProp (node, name))) {
        number = strtol (buf, NULL, 10);
        xmlFree (buf);
    }
    
    return number;
}

static char *
xml_get_prop (xmlNodePtr node, const char *name)
{
    char *buf, *val;
    
    buf = xmlGetProp (node, name);
    val = g_strdup (buf);
    xmlFree (buf);
    
    return val;
}

static char *
xml_get_content (xmlNodePtr node)
{
    char *buf, *val;
    
    buf = xmlNodeGetContent (node);
        val = g_strdup (buf);
    xmlFree (buf);
    
    return val;
}

static MailConfigSignature *
lookup_signature (int id)
{
    MailConfigSignature *sig;
    GSList *l;
    
    if (id == -1)
        return NULL;
    
    l = config->signatures;
    while (l != NULL) {
        sig = (MailConfigSignature *) l->data;
        if (sig->id == id)
            return sig;
        
        l = l->next;
    }
    
    return NULL;
}

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

static MailConfigSignature *
signature_new_from_xml (char *in, int id)
{
    MailConfigSignature *sig;
    xmlNodePtr node, cur;
    xmlDocPtr doc;
    char *buf;
    
    if (!(doc = xmlParseDoc (in)))
        return NULL;
    
    node = doc->children;
    if (strcmp (node->name, "signature") != 0) {
        xmlFreeDoc (doc);
        return NULL;
    }
    
    sig = g_new0 (MailConfigSignature, 1);
    sig->name = xml_get_prop (node, "name");
    sig->id = id;
    
    buf = xml_get_prop (node, "format");
    if (!strcmp (buf, "text/html"))
        sig->html = TRUE;
    else
        sig->html = FALSE;
    g_free (buf);
    
    cur = node->children;
    while (cur) {
        if (!strcmp (cur->name, "filename")) {
            g_free (sig->filename);
            sig->filename = xml_get_content (cur);
        } else if (!strcmp (cur->name, "script")) {
            g_free (sig->script);
            sig->script = xml_get_content (cur);
        }
        
        cur = cur->next;
    }
    
    xmlDocFree (doc);
    
    return sig;
}

static void
config_read_signatures (void)
{
    MailConfigSignature *sig;
    GSList *list, *l, *tail, *n;
    int i = 0;
    
    config->signatures = NULL;
    
    tail = NULL;
    list = gconf_client_get_list (config->gconf, "/apps/evolution/mail/signatures",
                      GCONF_VALUE_STRING, NULL);
    
    l = list;
    while (l != NULL) {
        MailConfigSignature *sig;
        
        if ((sig = signature_new_from_xml ((char *) l->data, i++))) {
            n = g_slist_alloc ();
            n->next = NULL;
            n->data = sig;
            
            if (tail == NULL)
                config->signatures = n;
            else
                tail->next = n;
            tail = n;
        }
        
        n = l->next;
        g_slist_free_1 (l);
        l = n;
    }
    
    config->sig_nextid = i + 1;
}

static char *
signature_to_xml (MailConfigSignature *sig)
{
    char *xmlbuf, *tmp;
    xmlNodePtr root;
    xmlDocPtr doc;
    int n;
    
    doc = xmlNewDoc ("1.0");
    
    root = xmlNewDocNode (doc, NULL, "signature", NULL);
    xmlDocSetRootElement (doc, root);
    
    xmlSetProp (root, "name", sig->name);
    xmlSetProp (root, "format", sig->html ? "text/html" : "text/plain");
    
    if (sig->filename)
        xmlNewTextChild (root, NULL, "filename", sig->filename);
    
    if (sig->script)
        xmlNewTextChild (root, NULL, "script", sig->script);
    
    xmlDocDumpMemory (doc, (xmlChar **) &xmlbuf, &n);
    xmlFreeDoc (doc);
    
    /* remap to glib memory */
    tmp = g_malloc (n + 1);
    memcpy (tmp, xmlbuf, n);
    tmp[n] = '\0';
    xmlFree (xmlbuf);
    
    return tmp;
}

static void
config_write_signatures (void)
{
    GSList *list, *tail, *n, *l;
    char *xmlbuf;
    
    list = NULL;
    tail = NULL;
    
    l = config->signatures;
    while (l != NULL) {
        if ((xmlbuf = signature_to_xml ((MailConfigSignature *) l->data))) {
            n = g_slist_alloc ();
            n->data = xmlbuf;
            n->next = NULL;
            
            if (tail == NULL)
                list = n;
            else
                tail->next = n;
            tail = n;
        }
        
        l = l->next;
    }
    
    gconf_client_set_list (config->gconf, "/apps/evolution/mail/signatures", GCONF_VALUE_STRING, list, NULL);
    
    l = list;
    while (l != NULL) {
        n = l->next;
        g_free (l->data);
        g_slist_free_1 (l);
        l = n;
    }
    
    gconf_client_suggest_sync (config->gconf, NULL);
}

/* Config struct routines */
void
mail_config_init (void)
{
    if (config)
        return;
    
    config = g_new0 (MailConfig, 1);
    config->gconf = gconf_client_get_default ();
    
    mail_config_clear ();
    
    config_read_signatures ();
    
    config->accounts = e_account_list_new (config->gconf);
}

void
mail_config_clear (void)
{
    int i;
    
    if (!config)
        return;
    
    if (config->accounts) {
        g_object_unref (config->accounts);
        config->accounts = NULL;
    }
    
    for (i = 0; i < 5; i++) {
        g_free (config->labels[i].name);
        config->labels[i].name = NULL;
        g_free (config->labels[i].string);
        config->labels[i].string = NULL;
    }
}

void
mail_config_write_account_sig (EAccount *account, int id)
{
    /* FIXME: what is this supposed to do? */
    ;
}

void
mail_config_write (void)
{
    if (!config)
        return;
    
    config_write_signatures ();
    e_account_list_save (config->accounts);
    
    gconf_client_suggest_sync (config->gconf, NULL);
}

static gboolean
hash_save_state (gpointer key, gpointer value, gpointer user_data)
{
    char *path;
    gboolean bool = GPOINTER_TO_INT (value);
    
#warning "need to rewrite hash_save_state(), probably shouldn't use gconf tho"
#if 0
    path = g_strconcat ("/apps/Evolution/Mail/", (char *)user_data, "/", (char *)key, 
                NULL);
    e_config_listener_set_boolean (config->db, path, bool);
    g_free (path);
    g_free (key);
#endif
    
    return TRUE;
}

void
mail_config_write_on_exit (void)
{
    EAccount *account;
    EIterator *iter;
    char *path, *p;
    int i;
    
    if (config_write_timeout) {
        g_source_remove (config_write_timeout);
        config_write_timeout = 0;
        mail_config_write ();
    }
    
    /* Message Threading */
    if (config->threaded_hash)
        g_hash_table_foreach_remove (config->threaded_hash, hash_save_state, "Threads");
    
    /* 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) {
            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) {
            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_component_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)
            mail_session_remember_password (account->source->url);
        
        if (account->transport->save_passwd && account->transport->url)
            mail_session_remember_password (account->transport->url);
        
        e_iterator_next (iter);
    }
    
    /* now do cleanup */
    mail_config_clear ();
}

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

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

static char *
uri_to_key (const char *uri)
{
    char *rval, *ptr;
    
    if (!uri)
        return NULL;
    
    rval = g_strdup (uri);
    
    for (ptr = rval; *ptr; ptr++)
        if (*ptr == '/' || *ptr == ':')
            *ptr = '_';
    
    return rval;
}

gboolean
mail_config_get_thread_list (const char *uri)
{
#warning "FIXME: need to rework how we save state, probably shouldn't use gconf"
#if 0
    if (uri && *uri) {
        gpointer key, val;
        char *dbkey;
        
        dbkey = uri_to_key (uri);
        
        if (!config->threaded_hash)
            config->threaded_hash = g_hash_table_new (g_str_hash, g_str_equal);
        
        if (!g_hash_table_lookup_extended (config->threaded_hash, dbkey, &key, &val)) {
            gboolean value;
            char *str;
            
            str = g_strdup_printf ("/apps/Evolution/Mail/Threads/%s", dbkey);
            value = e_config_listener_get_boolean_with_default (config->db, str, FALSE, NULL);
            g_free (str);
            
            g_hash_table_insert (config->threaded_hash, dbkey,
                         GINT_TO_POINTER (value));
            
            return value;
        } else {
            g_free(dbkey);
            return GPOINTER_TO_INT (val);
        }
    }
#endif
    
    /* return the default value */
    
    return gconf_client_get_bool (config->gconf, "/apps/evolution/mail/display/thread_list", NULL);
}

void
mail_config_set_thread_list (const char *uri, gboolean value)
{
    if (uri && *uri) {
        char *dbkey = uri_to_key (uri);
        gpointer key, val;
        
        if (!config->threaded_hash)
            config->threaded_hash = g_hash_table_new (g_str_hash, g_str_equal);
        
        if (g_hash_table_lookup_extended (config->threaded_hash, dbkey, &key, &val)) {
            g_hash_table_insert (config->threaded_hash, dbkey,
                         GINT_TO_POINTER (value));
            g_free (dbkey);
        } else {
            g_hash_table_insert (config->threaded_hash, dbkey, 
                         GINT_TO_POINTER (value));
        }
    }
}

const char *
mail_config_get_label_name (int label)
{
    g_return_val_if_fail (label >= 0 && label < 5, NULL);
    
    if (!config->labels[label].name)
        config->labels[label].name = g_strdup (_(label_defaults[label].name));
    
    return config->labels[label].name;
}

void
mail_config_set_label_name (int label, const char *name)
{
    g_return_if_fail (label >= 0 && label < 5);
    
    if (!name)
        name = _(label_defaults[label].name);
    
    g_free (config->labels[label].name);
    config->labels[label].name = g_strdup (name);
}

guint32
mail_config_get_label_color (int label)
{
    g_return_val_if_fail (label >= 0 && label < 5, 0);
    
    return config->labels[label].color;
}

void
mail_config_set_label_color (int label, guint32 color)
{
    g_return_if_fail (label >= 0 && label < 5);
    
    g_free (config->labels[label].string);
    config->labels[label].string = NULL;
    
    config->labels[label].color = color;
}

const char *
mail_config_get_label_color_string (int label)
{
    g_return_val_if_fail (label >= 0 && label < 5, NULL);
    
    if (!config->labels[label].string) {
        guint32 rgb = config->labels[label].color;
        char *colour;
        
        colour = g_strdup_printf ("#%.2x%.2x%.2x",
                      (rgb & 0xff0000) >> 16,
                      (rgb & 0xff00) >> 8,
                      rgb & 0xff);
        
        config->labels[label].string = colour;
    }
    
    return config->labels[label].string;
}

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)
{
    EAccount *account = NULL;
    EIterator *iter;
    int index, n;
    
    if (config == NULL)
        mail_config_init ();
    
    if (!config->accounts)
        return NULL;
    
    index = gconf_client_get_int (config->gconf, "/apps/evolution/mail/default_account", NULL);
    
    iter = e_list_get_iterator ((EList *) config->accounts);
    n = 0;
    
    while (e_iterator_is_valid (iter)) {
        if (n == index) {
            account = (EAccount *) e_iterator_get (iter);
            break;
        }
        
        n++;
        e_iterator_next (iter);
    }
    
    if (account == NULL) {
        /* Looks like we have no default, so make the first account
           the default */
        e_iterator_reset (iter);
        account = (EAccount *) e_iterator_get (iter);
        
        gconf_client_set_int (config->gconf, "/apps/evolution/mail/default_account", 0, NULL);
    }
    
    g_object_unref (iter);
    
    return account;
}

EAccount *
mail_config_get_account_by_name (const char *account_name)
{
    EAccount *account;
    EIterator *iter;
    
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);
        if (!strcmp (account->name, account_name)) {
            g_object_unref (iter);
            return account;
        }
        
        e_iterator_next (iter);
    }
    
    g_object_unref (iter);
    
    return NULL;
}

EAccount *
mail_config_get_account_by_source_url (const char *source_url)
{
    CamelProvider *provider;
    EAccount *account;
    CamelURL *source;
    EIterator *iter;
    
    g_return_val_if_fail (source_url != NULL, NULL);
    
    provider = camel_session_get_provider (session, source_url, NULL);
    if (!provider)
        return NULL;
    
    source = camel_url_new (source_url, NULL);
    if (!source)
        return NULL;
    
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);
        
        if (account->source && account->source->url) {
            CamelURL *url;
            
            url = camel_url_new (account->source->url, NULL);
            if (url && provider->url_equal (url, source)) {
                camel_url_free (url);
                camel_url_free (source);
                g_object_unref (iter);
                
                return account;
            }
            
            if (url)
                camel_url_free (url);
        }
        
        e_iterator_next (iter);
    }
    
    g_object_unref (iter);
    
    camel_url_free (source);
    
    return NULL;
}

EAccount *
mail_config_get_account_by_transport_url (const char *transport_url)
{
    CamelProvider *provider;
    CamelURL *transport;
    EAccount *account;
    EIterator *iter;
    
    g_return_val_if_fail (transport_url != NULL, NULL);
    
    provider = camel_session_get_provider (session, transport_url, NULL);
    if (!provider)
        return NULL;
    
    transport = camel_url_new (transport_url, NULL);
    if (!transport)
        return NULL;
    
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);
        
        if (account->transport && account->transport->url) {
            CamelURL *url;
            
            url = camel_url_new (account->transport->url, NULL);
            if (url && provider->url_equal (url, transport)) {
                camel_url_free (url);
                camel_url_free (transport);
                g_object_unref (iter);
                
                return account;
            }
            
            if (url)
                camel_url_free (url);
        }
        
        e_iterator_next (iter);
    }
    
    g_object_unref (iter);
    
    camel_url_free (transport);
    
    return NULL;
}

EAccountList *
mail_config_get_accounts (void)
{
    g_assert (config != NULL);
    
    return config->accounts;
}

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

void
mail_config_remove_account (EAccount *account)
{
    EAccount *acnt = NULL;
    EIterator *iter;
    int index, cur;
    
    cur = gconf_client_get_int (config->gconf, "/apps/evolution/mail/default_account", NULL);
    
    if (account == mail_config_get_default_account ()) {
        /* the default account has been deleted, the new
                   default becomes the first account in the list */
        gconf_client_set_int (config->gconf, "/apps/evolution/mail/default_account", 0, NULL);
    } else {
        /* adjust the default to make sure it points to the same one */
        index = 0;
        iter = e_list_get_iterator ((EList *) config->accounts);
        while (e_iterator_is_valid (iter)) {
            acnt = (EAccount *) e_iterator_get (iter);
            if (acnt == account)
                break;
            
            index++;
            e_iterator_next (iter);
        }
        
        g_object_unref (iter);
        
        if (cur > index)
            gconf_client_set_int (config->gconf, "/apps/evolution/mail/default_account", cur - 1, NULL);
    }
    
    e_list_remove ((EList *) config->accounts, account);
    g_object_unref (account);
    
    mail_config_save_accounts ();
}

void
mail_config_set_default_account (EAccount *account)
{
    EIterator *iter;
    EAccount *acnt;
    int index = -1;
    int i = 0;
    
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        acnt = (EAccount *) e_iterator_get (iter);
        if (acnt == account) {
            index = i;
            break;
        }
        
        i++;
        e_iterator_next (iter);
    }
    
    g_object_unref (iter);
    
    if (index == -1)
        return;
    
    gconf_client_set_int (config->gconf, "/apps/evolution/mail/default_account", index, NULL);
}

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->transport && account->transport->url)
        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->transport && account->transport->url) {
            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)
{
    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", evolution_dir, prefix + 1, safe);
    else
        tmp = g_strdup_printf ("%s/%s%s", evolution_dir, 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;
    gpointer oldkey, newkey, hashkey;
    gpointer val;
    char *oldname, *newname;
    char *cachenames[] = { "config/hidestate-", 
                   "config/et-expanded-", 
                   "config/et-header-", 
                   "*views/mail/current_view-",
                   "*views/mail/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);
    
    oldkey = uri_to_key (old);
    newkey = uri_to_key (new);
    
    /* call this to load the hash table and the key */
    mail_config_get_thread_list (old);
    if (g_hash_table_lookup_extended (config->threaded_hash, oldkey, &hashkey, &val)) {
        /*printf ("changing key in threaded_hash\n");*/
        g_hash_table_remove (config->threaded_hash, hashkey);
        g_hash_table_insert (config->threaded_hash, g_strdup (newkey), val);
        work = 2;
    }
    
    g_free (oldkey);
    g_free (newkey);
    
    /* 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);*/
        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 ... */
    extern char *default_sent_folder_uri, *default_drafts_folder_uri;
    
    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, *filename;
    
    url = mail_config_folder_to_safe_url (folder);
    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 char *
check_service_describe (struct _mail_msg *mm, int complete)
{
    return g_strdup (_("Checking Service"));
}

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

    camel_operation_register(mm->cancel);

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

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

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

    camel_operation_unregister(mm->cancel);
}

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

static void
check_response (GtkDialog *dialog, int button, gpointer data)
{
    int *msg_id = data;

    mail_msg_cancel (*msg_id);
}

/**
 * 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, GtkWindow *window)
{
    static GtkWidget *dialog = NULL;
    gboolean ret = FALSE;
    struct _check_msg *m;
    GtkWidget *label;
    int id;
    
    if (dialog) {
        gdk_window_raise (dialog->window);
        *authtypes = NULL;
        return FALSE;
    }
    
    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);

    dialog = gtk_dialog_new_with_buttons(_("Connecting to server..."), window,
                         GTK_DIALOG_DESTROY_WITH_PARENT,
                         GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                         NULL);
    label = gtk_label_new (_("Connecting to server..."));
    gtk_box_pack_start (GTK_BOX(GTK_DIALOG (dialog)->vbox),
                label, TRUE, TRUE, 10);
    g_signal_connect(dialog, "response", G_CALLBACK (check_response), &id);
    gtk_widget_show_all (dialog);
    
    mail_msg_wait(id);
    
    gtk_widget_destroy (dialog);
    dialog = NULL;
    
    return ret;
}

/* MailConfig Bonobo object */
#define PARENT_TYPE BONOBO_OBJECT_TYPE
static BonoboObjectClass *parent_class = NULL;

/* For the bonobo object */
typedef struct _EvolutionMailConfig EvolutionMailConfig;
typedef struct _EvolutionMailConfigClass EvolutionMailConfigClass;

struct _EvolutionMailConfig {
    BonoboObject parent;
};

struct _EvolutionMailConfigClass {
    BonoboObjectClass parent_class;

    POA_GNOME_Evolution_MailConfig__epv epv;
};

static gboolean
do_config_write (gpointer data)
{
    config_write_timeout = 0;
    mail_config_write ();
    return FALSE;
}

static void
impl_GNOME_Evolution_MailConfig_addAccount (PortableServer_Servant servant,
                        const GNOME_Evolution_MailConfig_Account *account,
                        CORBA_Environment *ev)
{
    GNOME_Evolution_MailConfig_Service source, transport;
    GNOME_Evolution_MailConfig_Identity id;
    EAccount *new;
    
    if (mail_config_get_account_by_name (account->name)) {
        /* FIXME: we need an exception. */
        return;
    }
    
    new = e_account_new ();
    new->name = g_strdup (account->name);
    new->enabled = source.enabled;
    
    /* Copy ID */
    id = account->id;
    new->id->name = g_strdup (id.name);
    new->id->address = g_strdup (id.address);
    new->id->reply_to = g_strdup (id.reply_to);
    new->id->organization = g_strdup (id.organization);
    
    /* Copy source */
    source = account->source;
    if (!(source.url == NULL || strcmp (source.url, "none://") == 0))
        new->source->url = g_strdup (source.url);
    
    new->source->keep_on_server = source.keep_on_server;
    new->source->auto_check = source.auto_check;
    new->source->auto_check_time = source.auto_check_time;
    new->source->save_passwd = source.save_passwd;
    
    /* Copy transport */
    transport = account->transport;
    if (transport.url != NULL)
        new->transport->url = g_strdup (transport.url);
    
    new->transport->url = g_strdup (transport.url);
    new->transport->save_passwd = transport.save_passwd;
    
    /* Add new account */
    mail_config_add_account (new);
    
    /* Don't write out the config right away in case the remote
     * component is creating or removing multiple accounts.
     */
    if (!config_write_timeout)
        config_write_timeout = g_timeout_add (2000, do_config_write, NULL);
}

static void
impl_GNOME_Evolution_MailConfig_removeAccount (PortableServer_Servant servant,
                           const CORBA_char *name,
                           CORBA_Environment *ev)
{
    EAccount *account;
    
    if ((account = mail_config_get_account_by_name (name)))
        mail_config_remove_account (account);
    
    /* Don't write out the config right away in case the remote
     * component is creating or removing multiple accounts.
     */
    if (!config_write_timeout)
        config_write_timeout = g_timeout_add (2000, do_config_write, NULL);
}

static void
evolution_mail_config_class_init (EvolutionMailConfigClass *klass)
{
    POA_GNOME_Evolution_MailConfig__epv *epv = &klass->epv;
    
    parent_class = g_type_class_ref(PARENT_TYPE);
    epv->addAccount = impl_GNOME_Evolution_MailConfig_addAccount;
    epv->removeAccount = impl_GNOME_Evolution_MailConfig_removeAccount;
}

static void
evolution_mail_config_init (EvolutionMailConfig *config)
{
    ;
}

BONOBO_TYPE_FUNC_FULL (EvolutionMailConfig,
               GNOME_Evolution_MailConfig,
               PARENT_TYPE,
               evolution_mail_config);

static BonoboObject *
evolution_mail_config_factory_fn (BonoboGenericFactory *factory,
                  const char *id,
                  void *closure)
{
    EvolutionMailConfig *config;
    
    config = g_object_new (evolution_mail_config_get_type (), NULL);
    
    return BONOBO_OBJECT (config);
}

gboolean
evolution_mail_config_factory_init (void)
{
    BonoboGenericFactory *factory;
    
    factory = bonobo_generic_factory_new (MAIL_CONFIG_IID, 
                          evolution_mail_config_factory_fn,
                          NULL);
    if (factory == NULL) {
        g_warning ("Error starting MailConfig");
        return FALSE;
    }

    bonobo_running_context_auto_exit_unref (BONOBO_OBJECT (factory));
    return TRUE;
}

GSList *
mail_config_get_signature_list (void)
{
    return config->signatures;
}

static char *
get_new_signature_filename (void)
{
    char *filename, *id;
    struct stat st;
    int i;
    
    filename = g_build_filename (evolution_dir, "/signatures", NULL);
    if (lstat (filename, &st)) {
        if (errno == ENOENT) {
            if (mkdir (filename, 0700))
                g_warning ("Fatal problem creating %s/signatures directory.", evolution_dir);
        } else
            g_warning ("Fatal problem with %s/signatures directory.", evolution_dir);
    }
    g_free (filename);
    
    filename = g_malloc (strlen (evolution_dir) + sizeof ("/signatures/signature-") + 12);
    id = g_stpcpy (filename, evolution_dir);
    id = g_stpcpy (id, "/signatures/signature-");
    
    for (i = 0; i < (INT_MAX - 1); i++) {
        sprintf (id, "%d", i);
        if (lstat (filename, &st) == -1 && errno == ENOENT) {
            int fd;
            
            fd = creat (filename, 0600);
            if (fd >= 0) {
                close (fd);
                return filename;
            }
        }
    }
    
    g_free (filename);
    
    return NULL;
}

MailConfigSignature *
mail_config_signature_add (gboolean html, const char *script)
{
    MailConfigSignature *sig;
    
    sig = g_new0 (MailConfigSignature, 1);
    
    /* printf ("mail_config_signature_add %d\n", config->sig_nextid); */
    sig->id = config->sig_nextid++;
    sig->name = g_strdup (_("Unnamed"));
    if (script)
        sig->script = g_strdup (script);
    else
        sig->filename = get_new_signature_filename ();
    sig->html = html;
    
    config->signatures = g_slist_append (config->signatures, sig);
    
    config_write_signatures ();
    
    mail_config_signature_emit_event (MAIL_CONFIG_SIG_EVENT_ADDED, sig);
    /* printf ("mail_config_signature_add end\n"); */
    
    return sig;
}

static void
delete_unused_signature_file (const char *filename)
{
    char *signatures_dir;
    int len;
    
    signatures_dir = g_strconcat (evolution_dir, "/signatures", NULL);
    
    /* remove signature file if it's in evolution dir and no other signature uses it */
    len = strlen (signatures_dir);
    if (filename && !strncmp (filename, signatures_dir, len)) {
        gboolean only_one = TRUE;
        GSList *node;
        
        node = config->signatures;
        while (node != NULL) {
            MailConfigSignature *sig = node->data;
            
            if (sig->filename && !strcmp (filename, sig->filename)) {
                only_one = FALSE;
                break;
            }
            
            node = node->next;
        }
        
        if (only_one)
            unlink (filename);
    }
    
    g_free (signatures_dir);
}

void
mail_config_signature_delete (MailConfigSignature *sig)
{
    EAccount *account;
    EIterator *iter;
    GSList *node, *next;
    gboolean after = FALSE;
    int index;
    
    index = g_slist_index (config->signatures, sig);
    
    iter = e_list_get_iterator ((EList *) config->accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);
        
        if (account->id->def_signature == index)
            account->id->def_signature = -1;
        else if (account->id->def_signature > index)
            account->id->def_signature--;
        
        e_iterator_next (iter);
    }
    
    g_object_unref (iter);
    
    node = config->signatures;
    while (node != NULL) {
        next = node->next;
        
        if (after) {
            ((MailConfigSignature *) node->data)->id--;
        } else if (node->data == sig) {
            config->signatures = g_slist_remove_link (config->signatures, node);
            config->sig_nextid--;
            after = TRUE;
        }
        
        node = next;
    }
    
    config_write_signatures ();
    delete_unused_signature_file (sig->filename);
    /* printf ("signatures: %d\n", config->signatures); */
    mail_config_signature_emit_event (MAIL_CONFIG_SIG_EVENT_DELETED, sig);
    signature_destroy (sig);
}

void
mail_config_signature_write (MailConfigSignature *sig)
{
    config_write_signature (sig, sig->id);
}

void
mail_config_signature_set_filename (MailConfigSignature *sig, const char *filename)
{
    gchar *old_filename = sig->filename;

    sig->filename = g_strdup (filename);
    if (old_filename) {
        delete_unused_signature_file (old_filename);
        g_free (old_filename);
    }
    mail_config_signature_write (sig);
}

void
mail_config_signature_set_name (MailConfigSignature *sig, const char *name)
{
    g_free (sig->name);
    sig->name = g_strdup (name);

    mail_config_signature_write (sig);
    mail_config_signature_emit_event (MAIL_CONFIG_SIG_EVENT_NAME_CHANGED, sig);
}

static GList *clients = NULL;

void
mail_config_signature_register_client (MailConfigSignatureClient client, gpointer data)
{
    clients = g_list_append (clients, client);
    clients = g_list_append (clients, data);
}

void
mail_config_signature_unregister_client (MailConfigSignatureClient client, gpointer data)
{
    GList *link;

    link = g_list_find (clients, data);
    clients = g_list_remove_link (clients, link->prev);
    clients = g_list_remove_link (clients, link);
}

void
mail_config_signature_emit_event (MailConfigSigEvent event, MailConfigSignature *sig)
{
    GList *l, *next;

    for (l = clients; l; l = next) {
        next = l->next->next;
        (*((MailConfigSignatureClient) l->data)) (event, sig, l->next->data);
    }
}

gchar *
mail_config_signature_run_script (gchar *script)
{
    int result, status;
    int in_fds[2];
    pid_t pid;
    
    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);
        if (maxfd > 0) {
            for (i = 0; i < maxfd; i++) {
                if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO)
                    close (i);
            }
        }
        
        
        execlp (script, 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));
        return NULL;
    } else {
        CamelStreamFilter *filtered_stream;
        CamelStreamMem *memstream;
        CamelMimeFilter *charenc;
        CamelStream *stream;
        GConfClient *gconf;
        GByteArray *buffer;
        char *charset;
        char *content;
        
        /* parent process */
        close (in_fds[1]);
        
        gconf = gconf_client_get_default ();
        
        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 (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 (gconf, "/apps/evolution/mail/composer/charset", NULL);
            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, "", 1);
        content = 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;
    }
}

void
mail_config_signature_set_html (MailConfigSignature *sig, gboolean html)
{
    if (sig->html != html) {
        sig->html = html;
        mail_config_signature_write (sig);
        mail_config_signature_emit_event (MAIL_CONFIG_SIG_EVENT_HTML_CHANGED, sig);
    }
}

int
mail_config_get_time_24hour(void)
{
    return config->time_24hour;
}