path: root/mail/mail-ops.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* mail-ops.c: callbacks for the mail toolbar/menus */

/* 
 * Author : 
 *  Dan Winship <danw@helixcode.com>
 *  Jeffrey Stedfast <fejj@helixcode.com>
 *  Peter Williams <peterw@helixcode.com>
 *
 * Copyright 2000 Helix Code, Inc. (http://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 Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#include <config.h>
#include <gnome.h>
#include <ctype.h>
#include <errno.h>
#include <camel/camel-mime-filter-from.h>
#include "mail.h"
#include "mail-threads.h"
#include "mail-tools.h"
#include "mail-ops.h"
#include "composer/e-msg-composer.h"
#include "folder-browser.h"
#include "e-util/e-html-utils.h"

#include "mail-mt.h"

#define d(x) x

int mail_operation_run(const mail_operation_spec *op, void *in, int free);

#define mail_tool_camel_lock_down()
#define mail_tool_camel_lock_up()

/* ** FETCH MAIL ********************************************************** */

typedef struct fetch_mail_input_s
{
    gchar *source_url;
    gboolean keep_on_server;
    CamelFolder *destination;
    gpointer hook_func;
    gpointer hook_data;
    CamelCancel *cancel;
}
fetch_mail_input_t;

typedef struct fetch_mail_update_info_s {
    gchar *name;
    gchar *display;
    gboolean new_messages;
} fetch_mail_update_info_t;

typedef struct fetch_mail_data_s {
    gboolean empty;
    EvolutionStorage *storage;
    GPtrArray *update_infos;
} fetch_mail_data_t;

static gchar *
describe_fetch_mail (gpointer in_data, gboolean gerund)
{
    fetch_mail_input_t *input = (fetch_mail_input_t *) in_data;
    char *name;
    
    /*source = camel_session_get_store (session, input->source_url, NULL);
     *if (source) {
     *  name = camel_service_get_name (CAMEL_SERVICE (source), FALSE);
     *  camel_object_unref (CAMEL_OBJECT (source));
     *} else
     */
    name = input->source_url;
    
    if (gerund)
        return g_strdup_printf (_("Fetching email from %s"), name);
    else
        return g_strdup_printf (_("Fetch email from %s"), name);
}

static void
setup_fetch_mail (gpointer in_data, gpointer op_data, CamelException *ex)
{
    fetch_mail_input_t *input = (fetch_mail_input_t *) in_data;
    fetch_mail_data_t *data = (fetch_mail_data_t *) op_data;
    
    data->empty = FALSE;
    data->storage = NULL;
    data->update_infos = NULL;

    if (input->destination)
        camel_object_ref (CAMEL_OBJECT (input->destination));
}

static FilterContext *
mail_load_evolution_rule_context ()
{
    gchar *userrules;
    gchar *systemrules;
    FilterContext *fc;
    
    userrules = g_strdup_printf ("%s/filters.xml", evolution_dir);
    systemrules = g_strdup_printf ("%s/evolution/filtertypes.xml", EVOLUTION_DATADIR);
    fc = filter_context_new ();
    rule_context_load ((RuleContext *)fc, systemrules, userrules);
    g_free (userrules);
    g_free (systemrules);
    
    return fc;
}

static void
mail_op_report_status (FilterDriver *driver, enum filter_status_t status, const char *desc, void *data)
{
    /* FIXME: make it work */
    switch (status) {
    case FILTER_STATUS_START:
        mail_status(desc);
        break;
    case FILTER_STATUS_END:
        break;
    case FILTER_STATUS_ACTION:
        break;
    default:
        break;
    }
}

static void
update_changed_folders (CamelStore *store, CamelFolderInfo *info,
            EvolutionStorage *storage, const char *path,
            GPtrArray *update_infos, CamelException *ex)
{
    char *name;

    name = g_strdup_printf ("%s/%s", path, info->name);

    if (info->url) {
        CamelFolder *folder;
        fetch_mail_update_info_t *update_info;

        update_info = g_new (fetch_mail_update_info_t, 1);
        update_info->name = g_strdup (name);

        if (info->unread_message_count > 0) {
            update_info->new_messages = TRUE;
            update_info->display = g_strdup_printf ("%s (%d)", info->name,
                                info->unread_message_count);
        } else {
            update_info->new_messages = FALSE;
            update_info->display = g_strdup (info->name);
        }

        /* This is a bit of a hack... if the store is already
         * caching the folder, then we update it. Otherwise
         * we don't.
         */
        folder = CAMEL_STORE_CLASS (CAMEL_OBJECT_GET_CLASS (store))->
            lookup_folder (store, info->full_name);     
        if (folder) {
            camel_folder_sync (folder, FALSE, ex);
            if (!camel_exception_is_set (ex))
                camel_folder_refresh_info (folder, ex);
            camel_object_unref (CAMEL_OBJECT (folder));
        }

        /* Save our info to update */
        g_ptr_array_add (update_infos, update_info);
    }
    if (!camel_exception_is_set (ex) && info->sibling) {
        update_changed_folders (store, info->sibling, storage,
                    path, update_infos, ex);
    }
    if (!camel_exception_is_set (ex) && info->child) {
        update_changed_folders (store, info->child, storage,
                    name, update_infos, ex);
    }
    g_free (name);
}

static void
do_fetch_mail (gpointer in_data, gpointer op_data, CamelException *ex)
{
    fetch_mail_input_t *input = (fetch_mail_input_t *) in_data;
    fetch_mail_data_t *data = (fetch_mail_data_t *) op_data;
    FilterContext *fc;
    FilterDriver *filter;
    FILE *logfile = NULL;
    CamelFolder *folder;
    
    camel_cancel_register(input->cancel);

    /* FIXME: This shouldn't be checking for "imap" specifically. */
    if (!strncmp (input->source_url, "imap:", 5)) {
        CamelStore *store;
        CamelFolderInfo *info;
        EvolutionStorage *storage;

        store = camel_session_get_store (session, input->source_url, ex);
        if (!store)
            return;
        storage = mail_lookup_storage (store);
        g_return_if_fail (storage != NULL);

        info = camel_store_get_folder_info (store, NULL, FALSE,
                            TRUE, TRUE, ex);
        if (!info) {
            camel_object_unref (CAMEL_OBJECT (store));
            gtk_object_unref (GTK_OBJECT (storage));
            return;
        }

        data->storage = storage;
        data->update_infos = g_ptr_array_new ();
        update_changed_folders (store, info, storage, "", data->update_infos, ex);

        camel_store_free_folder_info (store, info);
        camel_object_unref (CAMEL_OBJECT (store));
        gtk_object_unref (GTK_OBJECT (storage));

        data->empty = FALSE;
        return;
    }
    
    if (input->destination == NULL) {
        input->destination = mail_tool_get_local_inbox (ex);
        
        if (input->destination == NULL)
            return;
    }
    
    /* setup filter driver */
    fc = mail_load_evolution_rule_context ();
    filter = filter_driver_new (fc, mail_tool_filter_get_folder_func, 0);
    filter_driver_set_default_folder (filter, input->destination);
    
    if (TRUE /* perform_logging */) {
        char *filename = g_strdup_printf ("%s/evolution-filter-log", evolution_dir);
        logfile = fopen (filename, "a+");
        g_free (filename);
    }
    
    filter_driver_set_logfile (filter, logfile);
    filter_driver_set_status_func (filter, mail_op_report_status, NULL);
    
    camel_folder_freeze (input->destination);
    
    if (!strncmp (input->source_url, "mbox:", 5)) {
        char *path = mail_tool_do_movemail (input->source_url, ex);
        
        if (path && !camel_exception_is_set (ex)) {
            filter_driver_filter_mbox (filter, path, FILTER_SOURCE_INCOMING, ex);
            
            /* ok?  zap the output file */
            if (!camel_exception_is_set (ex)) {
                unlink (path);
            }
        }
        g_free (path);
    } else {
        folder = mail_tool_get_inbox (input->source_url, ex);

        if (folder) {
            if (camel_folder_get_message_count (folder) > 0) {
                CamelUIDCache *cache = NULL;
                GPtrArray *uids;
                
                uids = camel_folder_get_uids (folder);
                if (input->keep_on_server) {
                    char *cachename = mail_config_folder_to_cachename (folder, "cache-");

                    cache = camel_uid_cache_new (cachename);
                    if (cache) {
                        GPtrArray *new_uids;
                        
                        new_uids = camel_uid_cache_get_new_uids (cache, uids);
                        camel_folder_free_uids (folder, uids);
                        uids = new_uids;
                    }
                    
                    g_free (cachename);
                }
                
                filter_driver_filter_folder (filter, folder, FILTER_SOURCE_INCOMING,
                                 uids, !input->keep_on_server, ex);
                
                if (cache) {
                    /* save the cache for the next time we fetch mail! */
                    camel_uid_cache_free_uids (uids);
                    
                    if (!camel_exception_is_set (ex))
                        camel_uid_cache_save (cache);
                    camel_uid_cache_destroy (cache);
                } else
                    camel_folder_free_uids (folder, uids);
            } else {
                data->empty = TRUE;
            }
            
            /* sync and expunge */
            camel_folder_sync (folder, TRUE, ex);
            
            camel_object_unref (CAMEL_OBJECT (folder));
        } else {
            data->empty = TRUE;
        }
    }

    if (logfile)
        fclose (logfile);

    camel_folder_thaw (input->destination);

    /*camel_object_unref (CAMEL_OBJECT (input->destination));*/
    gtk_object_unref (GTK_OBJECT (filter));
}

static void
cleanup_fetch_mail (gpointer in_data, gpointer op_data, CamelException *ex)
{
    fetch_mail_input_t *input = (fetch_mail_input_t *) in_data;
    fetch_mail_data_t *data = (fetch_mail_data_t *) op_data;

    camel_cancel_unregister(input->cancel);
    camel_cancel_unref(input->cancel);

    if (data->empty && !camel_exception_is_set (ex))
        mail_op_set_message (_("There is no new mail at %s."),
                     input->source_url);
    
    if (data->update_infos) {
        int i;

        for (i = 0; i < data->update_infos->len; i++) {
            fetch_mail_update_info_t *update_info;

            update_info = (fetch_mail_update_info_t *) data->update_infos->pdata[i];
            evolution_storage_update_folder (data->storage,
                             update_info->name,
                             update_info->display,
                             update_info->new_messages);
            g_free (update_info->name);
            g_free (update_info->display);
            g_free (update_info);
        }

        g_ptr_array_free (data->update_infos, TRUE);
    }

    g_free (input->source_url);
    if (input->destination)
        camel_object_unref (CAMEL_OBJECT (input->destination));
}

static const mail_operation_spec op_fetch_mail = {
    describe_fetch_mail,
    sizeof (fetch_mail_data_t),
    setup_fetch_mail,
    do_fetch_mail,
    cleanup_fetch_mail
};

void
mail_do_fetch_mail (const gchar *source_url, gboolean keep_on_server,
            CamelFolder *destination,
            gpointer hook_func, gpointer hook_data)
{
    fetch_mail_input_t *input;
    
    g_return_if_fail (source_url != NULL);
    g_return_if_fail (destination == NULL ||
              CAMEL_IS_FOLDER (destination));

    input = g_new (fetch_mail_input_t, 1);
    input->source_url = g_strdup (source_url);
    input->keep_on_server = keep_on_server;
    input->destination = destination;
    input->hook_func = hook_func;
    input->hook_data = hook_data;
    input->cancel = camel_cancel_new();

    mail_operation_queue (&op_fetch_mail, input, TRUE);
}

/* ** FILTER ON DEMAND ********************************************************** */

/* why do we have this separate code, it is basically a copy of the code above,
   should be consolidated */

typedef struct filter_ondemand_input_s {
    CamelFolder *source;
    GPtrArray *uids;
} filter_ondemand_input_t;

static gchar *
describe_filter_ondemand (gpointer in_data, gboolean gerund)
{
    if (gerund)
        return g_strdup_printf (_("Filtering email on demand"));
    else
        return g_strdup_printf (_("Filter email on demand"));
}

static void
setup_filter_ondemand (gpointer in_data, gpointer op_data, CamelException *ex)
{
    filter_ondemand_input_t *input = (filter_ondemand_input_t *) in_data;
    
    camel_object_ref (CAMEL_OBJECT (input->source));
}

static void
do_filter_ondemand (gpointer in_data, gpointer op_data, CamelException *ex)
{
    filter_ondemand_input_t *input = (filter_ondemand_input_t *) in_data;
    FilterDriver *driver;
    FilterContext *context;
    FILE *logfile = NULL;
    int i;
    
    mail_tool_camel_lock_up ();
    if (camel_folder_get_message_count (input->source) == 0) {
        mail_tool_camel_lock_down ();
        return;
    }
    
    /* create the filter context */
    context = mail_load_evolution_rule_context ();
    
    if (((RuleContext *)context)->error) {
        gtk_object_unref (GTK_OBJECT (context));
        
        camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
                      "Cannot apply filters: failed to load filter rules.");
        
        mail_tool_camel_lock_down ();
        return;
    }
    
    /* setup filter driver - no default destination */
    driver = filter_driver_new (context, mail_tool_filter_get_folder_func, NULL);
    
    if (TRUE /* perform_logging */) {
        char *filename;
        
        filename = g_strdup_printf ("%s/evolution-filter-log", evolution_dir);
        logfile = fopen (filename, "a+");
        g_free (filename);
    }
    
    filter_driver_set_logfile (driver, logfile);
    filter_driver_set_status_func (driver, mail_op_report_status, NULL);
    
    for (i = 0; i < input->uids->len; i++) {
        CamelMimeMessage *message;
        CamelMessageInfo *info;
        
        message = camel_folder_get_message (input->source, input->uids->pdata[i], ex);
        info = camel_folder_get_message_info (input->source, input->uids->pdata[i]);
        
        /* filter the message - use "incoming" rules since we don't want special "demand" filters? */
        filter_driver_filter_message (driver, message, info, "", FILTER_SOURCE_INCOMING, ex);

        camel_folder_free_message_info(input->source, info);
    }
    
    if (logfile)
        fclose (logfile);
    
    /* sync the source folder */
    camel_folder_sync (input->source, FALSE, ex);
    
    gtk_object_unref (GTK_OBJECT (driver));
    mail_tool_camel_lock_down ();
}

static void
cleanup_filter_ondemand (gpointer in_data, gpointer op_data, CamelException *ex)
{
    filter_ondemand_input_t *input = (filter_ondemand_input_t *) in_data;
    int i;
    
    if (input->source)
        camel_object_unref (CAMEL_OBJECT (input->source));
    
    for (i = 0; i < input->uids->len; i++)
        g_free (input->uids->pdata[i]);
    g_ptr_array_free (input->uids, TRUE);
}

static const mail_operation_spec op_filter_ondemand = {
    describe_filter_ondemand,
    0,
    setup_filter_ondemand,
    do_filter_ondemand,
    cleanup_filter_ondemand
};

void
mail_do_filter_ondemand (CamelFolder *source, GPtrArray *uids)
{
    filter_ondemand_input_t *input;
    
    g_return_if_fail (source == NULL || CAMEL_IS_FOLDER (source));
    
    input = g_new (filter_ondemand_input_t, 1);
    input->source = source;
    input->uids = uids;
    
    mail_operation_queue (&op_filter_ondemand, input, TRUE);
}

/* ** SEND MAIL *********************************************************** */

struct _send_mail_msg {
    struct _mail_msg msg;

    char *uri;
    CamelMimeMessage *message;

    void (*done)(char *uri, CamelMimeMessage *message, gboolean sent, void *data);
    void *data;
};

static char *send_mail_desc(struct _mail_msg *mm, int done)
{
    struct _send_mail_msg *m = (struct _send_mail_msg *)mm;
    const char *subject;

    subject = camel_mime_message_get_subject(m->message);
    if (subject && subject[0])
        return g_strdup_printf (_("Sending \"%s\""), subject);
    else
        return g_strdup(_("Sending message"));
}

static void send_mail_send(struct _mail_msg *mm)
{
    struct _send_mail_msg *m = (struct _send_mail_msg *)mm;
    extern CamelFolder *sent_folder;
    CamelMessageInfo *info;
    CamelTransport *xport;
    FilterContext *context;

    camel_medium_add_header(CAMEL_MEDIUM (m->message), "X-Mailer", "Evolution (" XMAILER_VERSION " - Preview Release)");
    camel_mime_message_set_date(m->message, CAMEL_MESSAGE_DATE_CURRENT, 0);
    
    xport = camel_session_get_transport(session, m->uri, &mm->ex);
    if (camel_exception_is_set(&mm->ex))
        return;
    
    mail_tool_send_via_transport(xport, (CamelMedium *)m->message, &mm->ex);
    camel_object_unref((CamelObject *)xport);
    if (camel_exception_is_set(&mm->ex))
        return;
    
    /* now lets run it through the outgoing filters */
    info = camel_message_info_new();
    info->flags = CAMEL_MESSAGE_SEEN;
    
    /* setup filter driver */
#warning "Using a gtk object outside of the mian thread, joy"
    context = mail_load_evolution_rule_context ();
    
    if (!((RuleContext *)context)->error) {
        FilterDriver *driver;
        FILE *logfile;
        
        driver = filter_driver_new (context, mail_tool_filter_get_folder_func, NULL);
        
        if (TRUE /* perform_logging */) {
            char *filename;
            
            filename = g_strdup_printf ("%s/evolution-filter-log", evolution_dir);
            logfile = fopen (filename, "a+");
            g_free (filename);
        }
        
        filter_driver_filter_message (driver, m->message, info, "", FILTER_SOURCE_OUTGOING, &mm->ex);
        
        gtk_object_unref (GTK_OBJECT (driver));
        
        if (logfile)
            fclose (logfile);
    }
    
    /* now to save the message in Sent */
    if (sent_folder)
        camel_folder_append_message(sent_folder, m->message, info, &mm->ex);
    
    camel_message_info_free(info);
}

static void send_mail_sent(struct _mail_msg *mm)
{
    struct _send_mail_msg *m = (struct _send_mail_msg *)mm;

    if (m->done)
        m->done(m->uri, m->message, !camel_exception_is_set(&mm->ex), m->data);
}

static void send_mail_free(struct _mail_msg *mm)
{
    struct _send_mail_msg *m = (struct _send_mail_msg *)mm;

    camel_object_unref((CamelObject *)m->message);
    g_free(m->uri);
}

static struct _mail_msg_op send_mail_op = {
    send_mail_desc,
    send_mail_send,
    send_mail_sent,
    send_mail_free,
};

int
mail_send_mail(const char *uri, CamelMimeMessage *message, void (*done) (char *uri, CamelMimeMessage *message, gboolean sent, void *data), void *data)
{
    struct _send_mail_msg *m;
    int id;

    m = mail_msg_new(&send_mail_op, NULL, sizeof(*m));
    m->uri = g_strdup(uri);
    m->message = message;
    camel_object_ref((CamelObject *)message);
    m->data = data;
    m->done = done;

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

/* ** SEND MAIL QUEUE ***************************************************** */

typedef struct send_queue_input_s
{
    CamelFolder *folder_queue;
    gchar *xport_uri;
}
send_queue_input_t;

static gchar *
describe_send_queue (gpointer in_data, gboolean gerund)
{
    /*send_queue_input_t *input = (send_queue_input_t *) in_data;*/
    
    if (gerund) {
        return g_strdup_printf (_("Sending queue"));
    } else {
        return g_strdup_printf (_("Send queue"));
    }
}

static void
setup_send_queue (gpointer in_data, gpointer op_data, CamelException *ex)
{
    send_queue_input_t *input = (send_queue_input_t *) in_data;
    
    camel_object_ref (CAMEL_OBJECT (input->folder_queue));
}

static void
do_send_queue (gpointer in_data, gpointer op_data, CamelException *ex)
{
    send_queue_input_t *input = (send_queue_input_t *) in_data;
    extern CamelFolder *sent_folder;
    CamelTransport *xport;
    GPtrArray *uids;
    guint32 set;
    int i;
    
    uids = camel_folder_get_uids (input->folder_queue);
    if (!uids)
        return;
    
    for (i = 0; i < uids->len; i++) {
        CamelMimeMessage *message;
        char *transport_url = NULL;
        
        message = camel_folder_get_message (input->folder_queue, uids->pdata[i], ex);
        if (camel_exception_is_set (ex))
            break;
        
        camel_medium_add_header (CAMEL_MEDIUM (message), "X-Mailer", "Evolution (" XMAILER_VERSION " - Preview Release)");
        
        camel_mime_message_set_date (message, CAMEL_MESSAGE_DATE_CURRENT, 0);
        
        /* Get the preferred transport URI */
        transport_url = g_strdup (camel_medium_get_header (CAMEL_MEDIUM (message), "X-Evolution-Transport"));
        if (transport_url)
            camel_medium_remove_header (CAMEL_MEDIUM (message), "X-Evolution-Transport");
        
        xport = camel_session_get_transport (session, transport_url ? transport_url : input->xport_uri, ex);
        g_free (transport_url);
        
        if (camel_exception_is_set (ex))
            break;
        
        mail_tool_send_via_transport (xport, CAMEL_MEDIUM (message), ex);
        camel_object_unref (CAMEL_OBJECT (xport));
        
        if (camel_exception_is_set (ex))
            break;
        
        set = camel_folder_get_message_flags (input->folder_queue,
                              uids->pdata[i]);
        camel_folder_set_message_flags (input->folder_queue,
                        uids->pdata[i],
                        CAMEL_MESSAGE_DELETED, ~set);

        /* now to save the message in Sent */
        if (sent_folder) {
            CamelMessageInfo *info;
            
            info = g_new0 (CamelMessageInfo, 1);
            info->flags = CAMEL_MESSAGE_SEEN;
            camel_folder_append_message (sent_folder, message, info, ex);
            g_free (info);
        }
    }
    
    for (i = 0; i < uids->len; i++)
        g_free (uids->pdata[i]);
    g_ptr_array_free (uids, TRUE);

    if (!camel_exception_is_set(ex))
        camel_folder_expunge(input->folder_queue, NULL);
    
    if (sent_folder)
        camel_folder_sync(sent_folder, FALSE, NULL);
}

static void
cleanup_send_queue (gpointer in_data, gpointer op_data, CamelException *ex)
{
    send_queue_input_t *input = (send_queue_input_t *) in_data;
    
    camel_object_unref (CAMEL_OBJECT (input->folder_queue));
    
    g_free (input->xport_uri);
}

static const mail_operation_spec op_send_queue = {
    describe_send_queue,
    0,
    setup_send_queue,
    do_send_queue,
    cleanup_send_queue
};

void
mail_do_send_queue (CamelFolder *folder_queue,
            const char *xport_uri)
{
    send_queue_input_t *input;

    g_return_if_fail (xport_uri != NULL);
    g_return_if_fail (CAMEL_IS_FOLDER (folder_queue));

    input = g_new (send_queue_input_t, 1);
    input->xport_uri = g_strdup (xport_uri);
    input->folder_queue = folder_queue;
    
    mail_operation_queue (&op_send_queue, input, TRUE);
}


/* ** APPEND MESSAGE TO FOLDER ******************************************** */

typedef struct append_mail_input_s
{
        CamelFolder *folder;
    CamelMimeMessage *message;
        CamelMessageInfo *info;
}
append_mail_input_t;

static gchar *
describe_append_mail (gpointer in_data, gboolean gerund)
{
    append_mail_input_t *input = (append_mail_input_t *) in_data;
    
    if (gerund) {
        if (input->message->subject && input->message->subject[0])
            return g_strdup_printf (_("Appending \"%s\""),
                        input->message->subject);
        else
            return
                g_strdup (_("Appending a message without a subject"));
    } else {
        if (input->message->subject && input->message->subject[0])
            return g_strdup_printf (_("Appending \"%s\""),
                        input->message->subject);
        else
            return g_strdup (_("Appending a message without a subject"));
    }
}

static void
setup_append_mail (gpointer in_data, gpointer op_data, CamelException *ex)
{
    append_mail_input_t *input = (append_mail_input_t *) in_data;
    
    camel_object_ref (CAMEL_OBJECT (input->message));
    camel_object_ref (CAMEL_OBJECT (input->folder));
}

static void
do_append_mail (gpointer in_data, gpointer op_data, CamelException *ex)
{
    append_mail_input_t *input = (append_mail_input_t *) in_data;
    
    camel_mime_message_set_date (input->message,
                     CAMEL_MESSAGE_DATE_CURRENT, 0);
    
        mail_tool_camel_lock_up ();
    
    /* now to save the message in the specified folder */
    camel_folder_append_message (input->folder, input->message, input->info, ex);
    
        mail_tool_camel_lock_down ();
}

static void
cleanup_append_mail (gpointer in_data, gpointer op_data, CamelException *ex)
{
    append_mail_input_t *input = (append_mail_input_t *) in_data;
    
    camel_object_unref (CAMEL_OBJECT (input->message));
        camel_object_unref (CAMEL_OBJECT (input->folder));
}

static const mail_operation_spec op_append_mail = {
    describe_append_mail,
    0,
    setup_append_mail,
    do_append_mail,
    cleanup_append_mail
};

void
mail_do_append_mail (CamelFolder *folder,
             CamelMimeMessage *message,
             CamelMessageInfo *info)
{
    append_mail_input_t *input;
    
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));

    input = g_new (append_mail_input_t, 1);
    input->folder = folder;
    input->message = message;
    input->info = info;
    
    mail_operation_queue (&op_append_mail, input, TRUE);
}

/* ** TRANSFER MESSAGES **************************************************** */

typedef struct transfer_messages_input_s
{
    CamelFolder *source;
    GPtrArray *uids;
    gboolean delete_from_source;
    gchar *dest_uri;
}
transfer_messages_input_t;

static gchar *
describe_transfer_messages (gpointer in_data, gboolean gerund)
{
    transfer_messages_input_t *input = (transfer_messages_input_t *) in_data;
    char *format;
    
    if (gerund) {
        if (input->delete_from_source)
            format = _("Moving messages from \"%s\" into \"%s\"");
        else
            format = _("Copying messages from \"%s\" into \"%s\"");
    } else {
        if (input->delete_from_source)
            format = _("Move messages from \"%s\" into \"%s\"");
        else
            format = _("Copy messages from \"%s\" into \"%s\"");
    }

    return g_strdup_printf (format,
                mail_tool_get_folder_name (input->source), 
                input->dest_uri);
}

static void
setup_transfer_messages (gpointer in_data, gpointer op_data,
             CamelException *ex)
{
    transfer_messages_input_t *input = (transfer_messages_input_t *) in_data;

    camel_object_ref (CAMEL_OBJECT (input->source));
}

static void
do_transfer_messages (gpointer in_data, gpointer op_data, CamelException *ex)
{
    transfer_messages_input_t *input = (transfer_messages_input_t *) in_data;
    CamelFolder *dest;
    gint i;
    time_t last_update = 0;
    gchar *desc;
    void (*func) (CamelFolder *, const char *, 
              CamelFolder *, 
              CamelException *);

    if (input->delete_from_source) {
        func = camel_folder_move_message_to;
        desc = _("Moving");
    } else {
        func = camel_folder_copy_message_to;
        desc = _("Copying");
    }

    dest = mail_tool_uri_to_folder (input->dest_uri, ex);
    if (camel_exception_is_set (ex))
        return;

    mail_tool_camel_lock_up ();
    camel_folder_freeze (input->source);
    camel_folder_freeze (dest);

    for (i = 0; i < input->uids->len; i++) {
        const gboolean last_message = (i+1 == input->uids->len);
        time_t now;

        /*
         * Update the time display every 2 seconds
         */
        time (&now);
        if (last_message || ((now - last_update) > 2)) {
            mail_op_set_message (_("%s message %d of %d (uid \"%s\")"), desc,
                         i + 1, input->uids->len, (char *) input->uids->pdata[i]);
            last_update = now;
        }
        
        (func) (input->source,
            input->uids->pdata[i], dest,
            ex);
        g_free (input->uids->pdata[i]);
        if (camel_exception_is_set (ex))
            break;
    }

    camel_folder_thaw (input->source);
    camel_folder_thaw (dest);
    camel_object_unref (CAMEL_OBJECT (dest));
    mail_tool_camel_lock_down ();
}

static void
cleanup_transfer_messages (gpointer in_data, gpointer op_data,
               CamelException *ex)
{
    transfer_messages_input_t *input = (transfer_messages_input_t *) in_data;

    camel_object_unref (CAMEL_OBJECT (input->source));
    g_free (input->dest_uri);
    g_ptr_array_free (input->uids, TRUE);
}

static const mail_operation_spec op_transfer_messages = {
    describe_transfer_messages,
    0,
    setup_transfer_messages,
    do_transfer_messages,
    cleanup_transfer_messages
};

void
mail_do_transfer_messages (CamelFolder *source, GPtrArray *uids,
               gboolean delete_from_source,
               gchar *dest_uri)
{
    transfer_messages_input_t *input;

    g_return_if_fail (CAMEL_IS_FOLDER (source));
    g_return_if_fail (uids != NULL);
    g_return_if_fail (dest_uri != NULL);

    input = g_new (transfer_messages_input_t, 1);
    input->source = source;
    input->uids = uids;
    input->delete_from_source = delete_from_source;
    input->dest_uri = g_strdup (dest_uri);

    mail_operation_queue (&op_transfer_messages, input, TRUE);
}

/* ** SCAN SUBFOLDERS ***************************************************** */

struct _get_folderinfo_msg {
    struct _mail_msg msg;

    CamelStore *store;
    CamelFolderInfo *info;
    void (*done)(CamelStore *store, CamelFolderInfo *info, void *data);
    void *data;
};

static char *get_folderinfo_desc(struct _mail_msg *mm, int done)
{
    struct _get_folderinfo_msg *m = (struct _get_folderinfo_msg *)mm;
    char *ret, *name;

    name = camel_service_get_name((CamelService *)m->store, TRUE);
    ret = g_strdup_printf(_("Scanning folders in \"%s\""), name);
    g_free(name);
    return ret;
}

static void get_folderinfo_get(struct _mail_msg *mm)
{
    struct _get_folderinfo_msg *m = (struct _get_folderinfo_msg *)mm;

    m->info = camel_store_get_folder_info(m->store, NULL, FALSE, TRUE, TRUE, &mm->ex);
}

static void get_folderinfo_got(struct _mail_msg *mm)
{
    struct _get_folderinfo_msg *m = (struct _get_folderinfo_msg *)mm;

    if (m->done)
        m->done(m->store, m->info, m->data);
}

static void get_folderinfo_free(struct _mail_msg *mm)
{
    struct _get_folderinfo_msg *m = (struct _get_folderinfo_msg *)mm;

    if (m->info)
        camel_store_free_folder_info(m->store, m->info);
    camel_object_unref((CamelObject *)m->store);
}

static struct _mail_msg_op get_folderinfo_op = {
    get_folderinfo_desc,
    get_folderinfo_get,
    get_folderinfo_got,
    get_folderinfo_free,
};

int mail_get_folderinfo(CamelStore *store, void (*done)(CamelStore *store, CamelFolderInfo *info, void *data), void *data)
{
    struct _get_folderinfo_msg *m;
    int id;

    m = mail_msg_new(&get_folderinfo_op, NULL, sizeof(*m));
    m->store = store;
    camel_object_ref((CamelObject *)store);
    m->done = done;
    m->data = data;
    id = m->msg.seq;

    e_thread_put(mail_thread_new, (EMsg *)m);

    return id;
}

/* ********************************************************************** */

static void do_add_subfolders(CamelStore *store, CamelFolderInfo *info, EvolutionStorage *storage, const char *prefix)
{
    char *path, *name;

    path = g_strdup_printf("%s/%s", prefix, info->name);
    if (info->unread_message_count > 0)
        name = g_strdup_printf("%s (%d)", info->name, info->unread_message_count);
    else
        name = g_strdup(info->name);

    evolution_storage_new_folder(storage, path, name, "mail", info->url?info->url:"",
                     _("(No description)"), info->unread_message_count > 0);
    g_free(name);
    if (info->child)
        do_add_subfolders(store, info->child, storage, path);
    if (info->sibling)
        do_add_subfolders(store, info->sibling, storage, prefix);
    g_free(path);
}

static void do_scan_subfolders(CamelStore *store, CamelFolderInfo *info, void *data)
{
    EvolutionStorage *storage = data;

    if (info) {
        gtk_object_set_data((GtkObject *)storage, "connected", (void *)1);
        do_add_subfolders(store, info, storage, "");
    }
}

/* synchronous function to scan the & and add folders in a store */
void mail_scan_subfolders(CamelStore *store, EvolutionStorage *storage)
{
    int id;

    id = mail_get_folderinfo(store, do_scan_subfolders, storage);
    mail_msg_wait(id);
}

/* ** ATTACH MESSAGES ****************************************************** */

struct _build_data {
    void (*done)(CamelFolder *folder, GPtrArray *uids, CamelMimePart *part, char *subject, void *data);
    void *data;
};

static void do_build_attachment(CamelFolder *folder, GPtrArray *uids, GPtrArray *messages, void *data)
{
    struct _build_data *d = data;
    CamelMultipart *multipart;
    CamelMimePart *part;
    char *subject;
    int i;

    if (messages->len == 0) {
        d->done(folder, messages, NULL, NULL, d->data);
        g_free(d);
        return;
    }

    if (messages->len == 1) {
        part = mail_tool_make_message_attachment(messages->pdata[0]);
    } else {
        multipart = camel_multipart_new();
        camel_data_wrapper_set_mime_type(CAMEL_DATA_WRAPPER (multipart), "multipart/digest");
        camel_multipart_set_boundary(multipart, NULL);

        for (i=0;i<messages->len;i++) {
            part = mail_tool_make_message_attachment(messages->pdata[i]);
            camel_multipart_add_part(multipart, part);
            camel_object_unref((CamelObject *)part);
        }
        part = camel_mime_part_new();
        camel_medium_set_content_object(CAMEL_MEDIUM (part), CAMEL_DATA_WRAPPER(multipart));
        camel_object_unref((CamelObject *)multipart);

        camel_mime_part_set_description(part, _("Forwarded messages"));
    }

    subject = mail_tool_generate_forward_subject(messages->pdata[0]);
    d->done(folder, messages, part, subject, d->data);
    g_free(subject);
    camel_object_unref((CamelObject *)part);

    g_free(d);
}

void
mail_build_attachment(CamelFolder *folder, GPtrArray *uids,
              void (*done)(CamelFolder *folder, GPtrArray *messages, CamelMimePart *part, char *subject, void *data), void *data)
{
    struct _build_data *d;

    d = g_malloc(sizeof(*d));
    d->done = done;
    d->data = data;
    mail_get_messages(folder, uids, do_build_attachment, d);
}

/* ** LOAD FOLDER ********************************************************* */

/* there hsould be some way to merge this and create folder, since both can
   presumably create a folder ... */

struct _get_folder_msg {
    struct _mail_msg msg;

    char *uri;
    CamelFolder *folder;
    void (*done) (char *uri, CamelFolder *folder, void *data);
    void *data;
};

static char *get_folder_desc(struct _mail_msg *mm, int done)
{
    struct _get_folder_msg *m = (struct _get_folder_msg *)mm;
    
    return g_strdup_printf(_("Opening folder %s"), m->uri);
}

static void get_folder_get(struct _mail_msg *mm)
{
    struct _get_folder_msg *m = (struct _get_folder_msg *)mm;

    m->folder = mail_tool_uri_to_folder(m->uri, &mm->ex);
}

static void get_folder_got(struct _mail_msg *mm)
{
    struct _get_folder_msg *m = (struct _get_folder_msg *)mm;

    if (m->done)
        m->done(m->uri, m->folder, m->data);
}

static void get_folder_free(struct _mail_msg *mm)
{
    struct _get_folder_msg *m = (struct _get_folder_msg *)mm;

    g_free(m->uri);
    if (m->folder)
        camel_object_unref((CamelObject *)m->folder);
}

static struct _mail_msg_op get_folder_op = {
    get_folder_desc,
    get_folder_get,
    get_folder_got,
    get_folder_free,
};

int
mail_get_folder(const char *uri, void (*done) (char *uri, CamelFolder *folder, void *data), void *data)
{
    struct _get_folder_msg *m;
    int id;

    m = mail_msg_new(&get_folder_op, NULL, sizeof(*m));
    m->uri = g_strdup(uri);
    m->data = data;
    m->done = done;

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

/* ** CREATE FOLDER ******************************************************* */

/* trying to find a way to remove this entirely and just use get_folder()
   to do the same thing.  But i dont think it can be done, because one works on
   shell uri's (get folder), and the other only works for mail uri's ? */

struct _create_folder_msg {
    struct _mail_msg msg;

    char *uri;
    CamelFolder *folder;
    void (*done) (char *uri, CamelFolder *folder, void *data);
    void *data;
};

static char *create_folder_desc(struct _mail_msg *mm, int done)
{
    struct _create_folder_msg *m = (struct _create_folder_msg *)mm;
    
    return g_strdup_printf(_("Opening folder %s"), m->uri);
}

static void create_folder_get(struct _mail_msg *mm)
{
    struct _create_folder_msg *m = (struct _create_folder_msg *)mm;

    /* FIXME: supply a way to make indexes optional */
    m->folder = mail_tool_get_folder_from_urlname(m->uri, "mbox",
                              CAMEL_STORE_FOLDER_CREATE|CAMEL_STORE_FOLDER_BODY_INDEX,
                              &mm->ex);
}

static void create_folder_got(struct _mail_msg *mm)
{
    struct _create_folder_msg *m = (struct _create_folder_msg *)mm;

    if (m->done)
        m->done(m->uri, m->folder, m->data);
}

static void create_folder_free(struct _mail_msg *mm)
{
    struct _create_folder_msg *m = (struct _create_folder_msg *)mm;

    g_free(m->uri);
    if (m->folder)
        camel_object_unref((CamelObject *)m->folder);
}

static struct _mail_msg_op create_folder_op = {
    create_folder_desc,
    create_folder_get,
    create_folder_got,
    create_folder_free,
};

void
mail_create_folder(const char *uri, void (*done) (char *uri, CamelFolder *folder, void *data), void *data)
{
    struct _create_folder_msg *m;

    m = mail_msg_new(&create_folder_op, NULL, sizeof(*m));
    m->uri = g_strdup(uri);
    m->data = data;
    m->done = done;

    e_thread_put(mail_thread_new, (EMsg *)m);
}

/* ** SYNC FOLDER ********************************************************* */

struct _sync_folder_msg {
    struct _mail_msg msg;

    CamelFolder *folder;
    void (*done) (CamelFolder *folder, void *data);
    void *data;
};

static char *sync_folder_desc(struct _mail_msg *mm, int done)
{
    return g_strdup(_("Synchronising folder"));
}

static void sync_folder_sync(struct _mail_msg *mm)
{
    struct _sync_folder_msg *m = (struct _sync_folder_msg *)mm;

    camel_folder_sync(m->folder, FALSE, &mm->ex);
}

static void sync_folder_synced(struct _mail_msg *mm)
{
    struct _sync_folder_msg *m = (struct _sync_folder_msg *)mm;

    if (m->done)
        m->done(m->folder, m->data);
}

static void sync_folder_free(struct _mail_msg *mm)
{
    struct _sync_folder_msg *m = (struct _sync_folder_msg *)mm;

    camel_object_unref((CamelObject *)m->folder);
}

static struct _mail_msg_op sync_folder_op = {
    sync_folder_desc,
    sync_folder_sync,
    sync_folder_synced,
    sync_folder_free,
};

void
mail_sync_folder(CamelFolder *folder, void (*done) (CamelFolder *folder, void *data), void *data)
{
    struct _sync_folder_msg *m;

    m = mail_msg_new(&sync_folder_op, NULL, sizeof(*m));
    m->folder = folder;
    camel_object_ref((CamelObject *)folder);
    m->data = data;
    m->done = done;

    e_thread_put(mail_thread_new, (EMsg *)m);
}

/* ******************************************************************************** */

static char *expunge_folder_desc(struct _mail_msg *mm, int done)
{
    return g_strdup(_("Expunging folder"));
}

static void expunge_folder_expunge(struct _mail_msg *mm)
{
    struct _sync_folder_msg *m = (struct _sync_folder_msg *)mm;

    camel_folder_expunge(m->folder, &mm->ex);
}

/* we just use the sync stuff where we can, since it would be the same */
static struct _mail_msg_op expunge_folder_op = {
    expunge_folder_desc,
    expunge_folder_expunge,
    sync_folder_synced,
    sync_folder_free,
};

void
mail_expunge_folder(CamelFolder *folder, void (*done) (CamelFolder *folder, void *data), void *data)
{
    struct _sync_folder_msg *m;

    m = mail_msg_new(&expunge_folder_op, NULL, sizeof(*m));
    m->folder = folder;
    camel_object_ref((CamelObject *)folder);
    m->data = data;
    m->done = done;

    e_thread_put(mail_thread_new, (EMsg *)m);
}

/* ** GET MESSAGE(s) ***************************************************** */

struct _get_message_msg {
    struct _mail_msg msg;

    CamelFolder *folder;
    char *uid;
    void (*done) (CamelFolder *folder, char *uid, CamelMimeMessage *msg, void *data);
    void *data;
    CamelMimeMessage *message;
    CamelCancel *cancel;
};

static char *get_message_desc(struct _mail_msg *mm, int done)
{
    struct _get_message_msg *m = (struct _get_message_msg *)mm;

    return g_strdup_printf(_("Retrieving message %s"), m->uid);
}

static void get_message_get(struct _mail_msg *mm)
{
    struct _get_message_msg *m = (struct _get_message_msg *)mm;

    camel_cancel_register(m->cancel);
    m->message = camel_folder_get_message(m->folder, m->uid, &mm->ex);
    camel_cancel_unregister(m->cancel);
}

static void get_message_got(struct _mail_msg *mm)
{
    struct _get_message_msg *m = (struct _get_message_msg *)mm;

    if (m->done)
        m->done(m->folder, m->uid, m->message, m->data);
}

static void get_message_free(struct _mail_msg *mm)
{
    struct _get_message_msg *m = (struct _get_message_msg *)mm;

    g_free(m->uid);
    camel_object_unref((CamelObject *)m->folder);
    camel_cancel_unref(m->cancel);
}

static struct _mail_msg_op get_message_op = {
    get_message_desc,
    get_message_get,
    get_message_got,
    get_message_free,
};

void
mail_get_message(CamelFolder *folder, const char *uid, void (*done) (CamelFolder *folder, char *uid, CamelMimeMessage *msg, void *data), void *data, EThread *thread)
{
    struct _get_message_msg *m;

    m = mail_msg_new(&get_message_op, NULL, sizeof(*m));
    m->folder = folder;
    camel_object_ref((CamelObject *)folder);
    m->uid = g_strdup(uid);
    m->data = data;
    m->done = done;
    m->cancel = camel_cancel_new();

    e_thread_put(thread, (EMsg *)m);
}

/* ********************************************************************** */

struct _get_messages_msg {
    struct _mail_msg msg;

    CamelFolder *folder;
    GPtrArray *uids;
    GPtrArray *messages;

    void (*done) (CamelFolder *folder, GPtrArray *uids, GPtrArray *msgs, void *data);
    void *data;
};

static char * get_messages_desc(struct _mail_msg *mm, int done)
{
    return g_strdup_printf(_("Retrieving messages"));
}

static void get_messages_get(struct _mail_msg *mm)
{
    struct _get_messages_msg *m = (struct _get_messages_msg *)mm;
    int i;
    CamelMimeMessage *message;

    for (i=0; i<m->uids->len; i++) {
        mail_statusf(_("Retrieving message number %d of %d (uid \"%s\")"),
                 i+1, m->uids->len, (char *) m->uids->pdata[i]);

        message = camel_folder_get_message(m->folder, m->uids->pdata[i], &mm->ex);
        if (message == NULL)
            break;

        g_ptr_array_add(m->messages, message);
    }
}

static void get_messages_got(struct _mail_msg *mm)
{
    struct _get_messages_msg *m = (struct _get_messages_msg *)mm;

    if (m->done)
        m->done(m->folder, m->uids, m->messages, m->data);
}

static void get_messages_free(struct _mail_msg *mm)
{
    struct _get_messages_msg *m = (struct _get_messages_msg *)mm;
    int i;

    for (i=0;i<m->uids->len;i++)
        g_free(m->uids->pdata[i]);
    g_ptr_array_free(m->uids, TRUE);
    for (i=0;i<m->messages->len;i++) {
        if (m->messages->pdata[i])
            camel_object_unref((CamelObject *)m->messages->pdata[i]);
    }
    g_ptr_array_free(m->messages, TRUE);
    camel_object_unref((CamelObject *)m->folder);
}

static struct _mail_msg_op get_messages_op = {
    get_messages_desc,
    get_messages_get,
    get_messages_got,
    get_messages_free,
};

void
mail_get_messages(CamelFolder *folder, GPtrArray *uids, void (*done) (CamelFolder *folder, GPtrArray *uids, GPtrArray *msgs, void *data), void *data)
{
    struct _get_messages_msg *m;

    m = mail_msg_new(&get_messages_op, NULL, sizeof(*m));
    m->folder = folder;
    camel_object_ref((CamelObject *)folder);
    m->uids = uids;
    m->messages = g_ptr_array_new();
    m->data = data;
    m->done = done;

    e_thread_put(mail_thread_new, (EMsg *)m);
}


/* dum de dum, below is an entirely async 'operation' thingy */
struct _op_data {
    void *out;
    void *in;
    CamelException *ex;
    const mail_operation_spec *op;
    int pipe[2];
    int free;
    GIOChannel *channel;
};

static void *
runthread(void *oin)
{
    struct _op_data *o = oin;

    o->op->callback(o->in, o->out, o->ex);

    printf("thread run, sending notificaiton\n");

    write(o->pipe[1], "", 1);

    return oin;
}

static gboolean
runcleanup(GIOChannel *source, GIOCondition cond, void *d)
{
    struct _op_data *o = d;

    printf("ggot notification, blup\n");

    o->op->cleanup(o->in, o->out, o->ex);

    /*close(o->pipe[0]);*/
    close(o->pipe[1]);

    if (o->free)
        g_free(o->in);
    g_free(o->out);
    camel_exception_free(o->ex);
    g_free(o);

    g_io_channel_unref(source);

    return FALSE;
}

#include <pthread.h>

/* quick hack, like queue, but it runs it instantly in a new thread ! */
int
mail_operation_run(const mail_operation_spec *op, void *in, int free)
{
    struct _op_data *o;
    pthread_t id;

    o = g_malloc0(sizeof(*o));
    o->op = op;
    o->in = in;
    o->out = g_malloc0(op->datasize);
    o->ex = camel_exception_new();
    o->free = free;
    pipe(o->pipe);

    o->channel = g_io_channel_unix_new(o->pipe[0]);
    g_io_add_watch(o->channel, G_IO_IN, (GIOFunc)runcleanup, o);

    o->op->setup(o->in, o->out, o->ex);

    pthread_create(&id, 0, runthread, o);

    return TRUE;
}

/* ** SETUP TRASH VFOLDER ************************************************* */

typedef struct setup_trash_input_s {
    gchar *name;
    gchar *store_uri;
    CamelFolder **folder;
} setup_trash_input_t;

static gchar *
describe_setup_trash (gpointer in_data, gboolean gerund)
{
    setup_trash_input_t *input = (setup_trash_input_t *) in_data;
    
    if (gerund)
        return g_strdup_printf (_("Loading %s Folder for %s"), input->name, input->store_uri);
    else
        return g_strdup_printf (_("Load %s Folder for %s"), input->name, input->store_uri);
}

/* maps the shell's uri to the real vfolder uri and open the folder */
static CamelFolder *
create_trash_vfolder (const char *name, GPtrArray *urls, CamelException *ex)
{
    void camel_vee_folder_add_folder (CamelFolder *, CamelFolder *);
    
    char *storeuri, *foldername;
    CamelFolder *folder = NULL, *sourcefolder;
    const char *sourceuri;
    int source = 0;
    
    d(fprintf (stderr, "Creating Trash vfolder\n"));
    
    storeuri = g_strdup_printf ("vfolder:%s/vfolder/%s", evolution_dir, name);
    foldername = g_strdup ("mbox?(match-all (system-flag Deleted))");
    
    /* we dont have indexing on vfolders */
    folder = mail_tool_get_folder_from_urlname (storeuri, foldername, CAMEL_STORE_FOLDER_CREATE, ex);
    
    sourceuri = NULL;
    while (source < urls->len) {
        sourceuri = urls->pdata[source];
        fprintf (stderr, "adding vfolder source: %s\n", sourceuri);
        
        sourcefolder = mail_tool_uri_to_folder (sourceuri, ex);
        d(fprintf (stderr, "source folder = %p\n", sourcefolder));
        
        if (sourcefolder) {
            mail_tool_camel_lock_up ();
            camel_vee_folder_add_folder (folder, sourcefolder);
            mail_tool_camel_lock_down ();
        } else {
            /* we'll just silently ignore now-missing sources */
            camel_exception_clear (ex);
        }
        
        g_free (urls->pdata[source]);
        source++;
    }
    
    g_ptr_array_free (urls, TRUE);
    
    g_free (foldername);
    g_free (storeuri);
    
    return folder;
}

static void
populate_folder_urls (CamelFolderInfo *info, GPtrArray *urls)
{
    if (!info)
        return;
    
    g_ptr_array_add (urls, info->url);
    
    if (info->child)
        populate_folder_urls (info->child, urls);
    
    if (info->sibling)
        populate_folder_urls (info->sibling, urls);
}

static void
local_folder_urls (gpointer key, gpointer value, gpointer user_data)
{
    GPtrArray *urls = user_data;
    CamelFolder *folder = value;
    
    g_ptr_array_add (urls, g_strdup_printf ("file://%s/local/%s",
                        evolution_dir,
                        folder->full_name));
}

static void
do_setup_trash (gpointer in_data, gpointer op_data, CamelException *ex)
{
    setup_trash_input_t *input = (setup_trash_input_t *) in_data;
    EvolutionStorage *storage;
    CamelFolderInfo *info;
    CamelStore *store;
    GPtrArray *urls;
    
    urls = g_ptr_array_new ();
    
    /* we don't want to connect */
    store = (CamelStore *) camel_session_get_service (session, input->store_uri,
                              CAMEL_PROVIDER_STORE, ex);
    if (store == NULL) {
        g_warning ("Couldn't get service %s: %s\n", input->store_uri,
               camel_exception_get_description (ex));
        camel_exception_clear (ex);
    } else {
        char *path, *uri;
        
        if (!strcmp (input->store_uri, "file:/")) {
            /* Yeah - this is a hack but then again so are local folders */
            g_hash_table_foreach (store->folders, local_folder_urls, urls);
        } else {
            info = camel_store_get_folder_info (store, "/", TRUE, TRUE, TRUE, ex);
            populate_folder_urls (info, urls);
            camel_store_free_folder_info (store, info);
        }
        
        *(input->folder) = create_trash_vfolder (input->name, urls, ex);
        
        uri = g_strdup_printf ("vfolder:%s", input->name);
        path = g_strdup_printf ("/%s", input->name);
        storage = mail_lookup_storage (store);
        evolution_storage_new_folder (storage, path, g_basename (path),
                          "mail", uri, input->name, FALSE);
        gtk_object_unref (GTK_OBJECT (storage));
        g_free (path);
        g_free (uri);
    }
}

static void
cleanup_setup_trash (gpointer in_data, gpointer op_data, CamelException *ex)
{
    setup_trash_input_t *input = (setup_trash_input_t *) in_data;
    
    g_free (input->name);
    g_free (input->store_uri);
}

static const mail_operation_spec op_setup_trash = {
    describe_setup_trash,
    0,
    NULL,
    do_setup_trash,
    cleanup_setup_trash
};

void
mail_do_setup_trash (const char *name, const char *store_uri, CamelFolder **folder)
{
    setup_trash_input_t *input;
    
    g_return_if_fail (name != NULL);
    g_return_if_fail (folder != NULL);
    
    input = g_new (setup_trash_input_t, 1);
    input->name = g_strdup (name);
    input->store_uri = g_strdup (store_uri);
    input->folder = folder;
    mail_operation_queue (&op_setup_trash, input, TRUE);
}

/* ** SAVE MESSAGES ******************************************************* */

struct _save_messages_msg {
    struct _mail_msg msg;

    CamelFolder *folder;
    GPtrArray *uids;
    char *path;
    void (*done)(CamelFolder *folder, GPtrArray *uids, char *path, void *data);
    void *data;
};

static char *save_messages_desc(struct _mail_msg *mm, int done)
{
    return g_strdup(_("Saving messages"));
}

/* tries to build a From line, based on message headers */
/* this is a copy directly from camel-mbox-summary.c */

static char *tz_months[] = {
    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};

static char *tz_days[] = {
    "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};

static char *
build_from(struct _header_raw *header)
{
    GString *out = g_string_new("From ");
    char *ret;
    const char *tmp;
    time_t thetime;
    int offset;
    struct tm tm;

    tmp = header_raw_find(&header, "Sender", NULL);
    if (tmp == NULL)
        tmp = header_raw_find(&header, "From", NULL);
    if (tmp != NULL) {
        struct _header_address *addr = header_address_decode(tmp);

        tmp = NULL;
        if (addr) {
            if (addr->type == HEADER_ADDRESS_NAME) {
                g_string_append(out, addr->v.addr);
                tmp = "";
            }
            header_address_unref(addr);
        }
    }
    if (tmp == NULL)
        g_string_append(out, "unknown@nodomain.now.au");

    /* try use the received header to get the date */
    tmp = header_raw_find(&header, "Received", NULL);
    if (tmp) {
        tmp = strrchr(tmp, ';');
        if (tmp)
            tmp++;
    }

    /* if there isn't one, try the Date field */
    if (tmp == NULL)
        tmp = header_raw_find(&header, "Date", NULL);

    thetime = header_decode_date(tmp, &offset);
    thetime += ((offset / 100) * (60 * 60)) + (offset % 100) * 60;
    gmtime_r(&thetime, &tm);
    g_string_sprintfa(out, " %s %s %d %02d:%02d:%02d %4d\n",
              tz_days[tm.tm_wday],
              tz_months[tm.tm_mon], tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_year + 1900);

    ret = out->str;
    g_string_free(out, FALSE);
    return ret;
}

static void save_messages_save(struct _mail_msg *mm)
{
    struct _save_messages_msg *m = (struct _save_messages_msg *)mm;
    CamelStreamFilter *filtered_stream;
    CamelMimeFilterFrom *from_filter;
    CamelStream *stream;
    int fd, i;
    char *from;

    fd = open(m->path, O_WRONLY | O_CREAT | O_TRUNC, 0666);
    if (fd == -1) {
        camel_exception_setv(&mm->ex, CAMEL_EXCEPTION_SYSTEM,
                     _("Unable to create output file: %s\n %s"), m->path, strerror(errno));
        return;
    }
    
    stream = camel_stream_fs_new_with_fd(fd);
    from_filter = camel_mime_filter_from_new();
    filtered_stream = camel_stream_filter_new_with_stream(stream);
    camel_stream_filter_add(filtered_stream, (CamelMimeFilter *)from_filter);
    camel_object_unref((CamelObject *)from_filter);
    
    for (i=0; i<m->uids->len; i++) {
        CamelMimeMessage *message;

        mail_statusf(_("Saving message %d of %d (uid \"%s\")"),
                 i+1, m->uids->len, (char *)m->uids->pdata[i]);
        
        message = camel_folder_get_message(m->folder, m->uids->pdata[i], &mm->ex);
        if (!message)
            break;

        /* we need to flush after each stream write since we are writing to the same fd */
        from = build_from(((CamelMimePart *)message)->headers);
        if (camel_stream_write_string(stream, from) == -1
            || camel_stream_flush(stream) == -1
            || camel_data_wrapper_write_to_stream((CamelDataWrapper *)message, (CamelStream *)filtered_stream) == -1
            || camel_stream_flush((CamelStream *)filtered_stream) == -1) {
            camel_exception_setv(&mm->ex, CAMEL_EXCEPTION_SYSTEM,
                         _("Error saving messages to: %s:\n %s"), m->path, strerror(errno));
            g_free(from);
            camel_object_unref((CamelObject *)message);
            break;
        }
        g_free(from);
        camel_object_unref((CamelObject *)message);
    }

    camel_object_unref((CamelObject *)filtered_stream);
    camel_object_unref((CamelObject *)stream);
}

static void save_messages_saved(struct _mail_msg *mm)
{
    struct _save_messages_msg *m = (struct _save_messages_msg *)mm;

    if (m->done)
        m->done(m->folder, m->uids, m->path, m->data);
}

static void save_messages_free(struct _mail_msg *mm)
{
    struct _save_messages_msg *m = (struct _save_messages_msg *)mm;
    int i;

    for (i=0;i<m->uids->len;i++)
        g_free(m->uids->pdata[i]);
    g_ptr_array_free(m->uids, TRUE);
    camel_object_unref((CamelObject *)m->folder);
    g_free(m->path);
}

static struct _mail_msg_op save_messages_op = {
    save_messages_desc,
    save_messages_save,
    save_messages_saved,
    save_messages_free,
};

int
mail_save_messages(CamelFolder *folder, GPtrArray *uids, const char *path,
           void (*done) (CamelFolder *folder, GPtrArray *uids, char *path, void *data), void *data)
{
    struct _save_messages_msg *m;
    int id;

    m = mail_msg_new(&save_messages_op, NULL, sizeof(*m));
    m->folder = folder;
    camel_object_ref((CamelObject *)folder);
    m->uids = uids;
    m->path = g_strdup(path);
    m->data = data;
    m->done = done;

    id = m->msg.seq;
    e_thread_put(mail_thread_new, (EMsg *)m);

    return id;
}