aboutsummaryrefslogblamecommitdiffstats
path: root/mail/em-utils.c
blob: c942af0036938073c93be982b6da3ae0ecba1a72 (plain) (tree)
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297


































                                                                           
                                   


                                 
                           














                                                           
                                                                                       




                         
                                                                      




                                                                    
                                                                     




                                                            
                                                                                             




                                       




                                                              








                                                                                
                        





                                                                                                 



                                                                                                                       



                                          




















































































































                                                                                    

                          
                                        


                                                                       
                                                              
                                                                                                     

























                                                                      
                                                                                                 








                                                                      
                                                                       























                                                                                                             
                          




                                         






                                                             




                                                                      
                                   


                            
                                                        





                                            






                                                                      
                                                          







                                                             






                                                             






                                                                      
                                      




                                              













                                                                                                              
                                                                              












                                                                                    





                                                                
                                                 


                                                           
                                           












                                                                                       
                                                                      




                          





                                                  
                                                             



                                                    
                                                              











                                                                                                                
                                          










                                                                               









                                                                      
                                                                



                                                    
                                                                     


           
                                                     


















                                                                       
                                                                                                           

                           
                                                          





















                                                                                                  
                                                                    



                           





                                                                               
                                                              



                                                    
                                                               




                                                                                           
                                                                    



                           






                                                                      
                                                              



                                                    
                                                               









                                                             
                                                    



















                                                                                               
                                                                       



                                          
                                                                            

                                        
                                                                            







                                          






                                                                
                                                                









                                                                                               
                                                         

                                        
                                                       

                                        
                                                       






                             
                                                 













                                                                                         






                                                             





                                                                    
                                                     





                                                           
                                                   















                                                                                               
                                            



                                    






                                                                    
                                                                       



                                                    
                                                                            



















































                                                                                                                    
                        

                                                                   
                                      







                                                                     
                                                               



                                                                          


                                                               















                                          
                                                                 


                                                                       
                                    








                                                                                  


































































































































































































































































                                                                                                                         





                                                     
                                                               


















                                                    
                                                                 















                                                                         



                                                                                                   


                               


                                           



                                                            
                       












                                                    
                                                                 

















                                                                                            







                                                                     
                                                                                 
 


                                                    
                                                                                                  









                                                                                                        
                                    











                                                            
























































                                                                                                        







                                                                   
                                                                            



                                                    
                                                                                     




                         
                                                                             





















































































































                                                                                             
















































                                                                                              























































                                                                                                     









































                                                                                                                                        


















































































































































                                                                                                               
                                                        















































































                                                                                                                            
                                                                                  
















































































                                                                                            
                                             









                                                                                        
        














                                                                                     
                                                      




























































                                                                                            
                      








                                                                     


                                                      



                                                              
        

                                                  


                                                                       
















































































































































































































































































































































                                                                                                                         









                                                                



                                                                           

                                                                         



                                                                                                  



















                                                





                                                                                                      
































                                                                                                   
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Authors: Jeffrey Stedfast <fejj@ximian.com>
 *
 *  Copyright 2003 Ximian, Inc. (www.ximian.com)
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
 *
 */

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

#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <time.h>

#include <camel/camel-stream-fs.h>
#include <camel/camel-url-scanner.h>
#include <camel/camel-file-utils.h>

#include <filter/filter-editor.h>

#include "mail-component.h"
#include "mail-mt.h"
#include "mail-ops.h"
#include "mail-tools.h"
#include "mail-config.h"
#include "mail-config-druid.h"
#include "message-tag-followup.h"

#include <e-util/e-mktemp.h>
#include <e-util/e-dialog-utils.h>

#include "em-utils.h"
#include "em-composer-utils.h"
#include "em-format-quote.h"

static EAccount *guess_account (CamelMimeMessage *message);
static void emu_save_part_done (CamelMimePart *part, char *name, int done, void *data);

/**
 * em_utils_prompt_user:
 * @parent: parent window
 * @def: default response
 * @promptkey: gconf key to check if we should prompt the user or not.
 * @fmt: prompt format
 * @Varargs: varargs
 *
 * Convenience function to query the user with a Yes/No dialog and a
 * "Don't show this dialog again" checkbox. If the user checks that
 * checkbox, then @promptkey is set to %FALSE, otherwise it is set to
 * %TRUE.
 *
 * Returns %TRUE if the user clicks Yes or %FALSE otherwise.
 **/
gboolean
em_utils_prompt_user(GtkWindow *parent, int def, const char *promptkey, const char *fmt, ...)
{
    GtkWidget *mbox, *check = NULL;
    va_list ap;
    int button;
    char *str;
    GConfClient *gconf = mail_config_get_gconf_client();

    if (promptkey
        && !gconf_client_get_bool(gconf, promptkey, NULL))
        return TRUE;
    
    va_start (ap, fmt);
    str = g_strdup_vprintf (fmt, ap);
    va_end (ap);
    mbox = gtk_message_dialog_new (parent, GTK_DIALOG_DESTROY_WITH_PARENT,
                       GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO,
                       "%s", str);
    g_free (str);
    gtk_dialog_set_default_response ((GtkDialog *) mbox, def);
    if (promptkey) {
        check = gtk_check_button_new_with_label (_("Don't show this message again."));
        gtk_box_pack_start ((GtkBox *)((GtkDialog *) mbox)->vbox, check, TRUE, TRUE, 10);
        gtk_widget_show (check);
    }
    
    button = gtk_dialog_run ((GtkDialog *) mbox);
    if (promptkey)
        gconf_client_set_bool(gconf, promptkey, !gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(check)), NULL);

    gtk_widget_destroy(mbox);
    
    return button == GTK_RESPONSE_YES;
}

/**
 * em_utils_uids_copy:
 * @uids: array of uids
 *
 * Duplicates the array of uids held by @uids into a new
 * GPtrArray. Use em_utils_uids_free() to free the resultant uid
 * array.
 *
 * Returns a duplicate copy of @uids.
 **/
GPtrArray *
em_utils_uids_copy (GPtrArray *uids)
{
    GPtrArray *copy;
    int i;
    
    copy = g_ptr_array_new ();
    g_ptr_array_set_size (copy, uids->len);
    
    for (i = 0; i < uids->len; i++)
        copy->pdata[i] = g_strdup (uids->pdata[i]);
    
    return copy;
}

/**
 * em_utils_uids_free:
 * @uids: array of uids
 *
 * Frees the array of uids pointed to by @uids back to the system.
 **/
void
em_utils_uids_free (GPtrArray *uids)
{
    int i;
    
    for (i = 0; i < uids->len; i++)
        g_free (uids->pdata[i]);
    
    g_ptr_array_free (uids, TRUE);
}

static void
druid_destroy_cb (gpointer user_data, GObject *deadbeef)
{
    gtk_main_quit ();
}

/**
 * em_utils_configure_account:
 * @parent: parent window for the druid to be a child of.
 *
 * Displays a druid allowing the user to configure an account. If
 * @parent is non-NULL, then the druid will be created as a child
 * window of @parent's toplevel window.
 *
 * Returns %TRUE if an account has been configured or %FALSE
 * otherwise.
 **/
gboolean
em_utils_configure_account (GtkWidget *parent)
{
    MailConfigDruid *druid;
    
    druid = mail_config_druid_new ();
    
    if (parent != NULL)
        e_dialog_set_transient_for ((GtkWindow *) druid, parent);
    
    g_object_weak_ref ((GObject *) druid, (GWeakNotify) druid_destroy_cb, NULL);
    gtk_widget_show ((GtkWidget *) druid);
    gtk_grab_add ((GtkWidget *) druid);
    gtk_main ();
    
    return mail_config_is_configured ();
}

/**
 * em_utils_check_user_can_send_mail:
 * @parent: parent window for the druid to be a child of.
 *
 * If no accounts have been configured, the user will be given a
 * chance to configure an account. In the case that no accounts are
 * configured, a druid will be created. If @parent is non-NULL, then
 * the druid will be created as a child window of @parent's toplevel
 * window.
 *
 * Returns %TRUE if the user has an account configured (to send mail)
 * or %FALSE otherwise.
 **/
gboolean
em_utils_check_user_can_send_mail (GtkWidget *parent)
{
    EAccount *account;
    
    if (!mail_config_is_configured ()) {
        if (!em_utils_configure_account (parent))
            return FALSE;
    }
    
    if (!(account = mail_config_get_default_account ()))
        return FALSE;
    
    /* Check for a transport */
    if (!account->transport->url)
        return FALSE;
    
    return TRUE;
}

/* Editing Filters/vFolders... */

static GtkWidget *filter_editor = NULL;

static void
filter_editor_response (GtkWidget *dialog, int button, gpointer user_data)
{
    FilterContext *fc;
    
    if (button == GTK_RESPONSE_OK) {
        char *user;
        
        fc = g_object_get_data ((GObject *) dialog, "context");
        user = g_strdup_printf ("%s/mail/filters.xml",
                    mail_component_peek_base_directory (mail_component_peek ()));
        rule_context_save ((RuleContext *) fc, user);
        g_free (user);
    }
    
    gtk_widget_destroy (dialog);
    
    filter_editor = NULL;
}

static const char *filter_source_names[] = {
    "incoming",
    "outgoing",
    NULL,
};

/**
 * em_utils_edit_filters:
 * @parent: parent window
 *
 * Opens or raises the filters editor dialog so that the user may edit
 * his/her filters. If @parent is non-NULL, then the dialog will be
 * created as a child window of @parent's toplevel window.
 **/
void
em_utils_edit_filters (GtkWidget *parent)
{
    const char *base_directory = mail_component_peek_base_directory (mail_component_peek ());
    char *user, *system;
    FilterContext *fc;
    
    if (filter_editor) {
        gdk_window_raise (GTK_WIDGET (filter_editor)->window);
        return;
    }
    
    fc = filter_context_new ();
    user = g_strdup_printf ("%s/mail/filters.xml", base_directory);
    system = EVOLUTION_PRIVDATADIR "/filtertypes.xml";
    rule_context_load ((RuleContext *) fc, system, user);
    g_free (user);
    
    if (((RuleContext *) fc)->error) {
        e_notice (parent, GTK_MESSAGE_ERROR,
              _("Error loading filter information:\n%s"),
              ((RuleContext *) fc)->error);
        return;
    }
    
    filter_editor = (GtkWidget *) filter_editor_new (fc, filter_source_names);
    if (parent != NULL)
        e_dialog_set_transient_for ((GtkWindow *) filter_editor, parent);
    
    gtk_window_set_title (GTK_WINDOW (filter_editor), _("Filters"));
    g_object_set_data_full ((GObject *) filter_editor, "context", fc, (GtkDestroyNotify) g_object_unref);
    g_signal_connect (filter_editor, "response", G_CALLBACK (filter_editor_response), NULL);
    gtk_widget_show (GTK_WIDGET (filter_editor));
}

/* Composing messages... */

static EMsgComposer *
create_new_composer (void)
{
    EMsgComposer *composer;
    
    composer = e_msg_composer_new ();
    
    em_composer_utils_setup_default_callbacks (composer);
    
    return composer;
}

/**
 * em_utils_compose_new_message:
 *
 * Opens a new composer window as a child window of @parent's toplevel
 * window.
 **/
void
em_utils_compose_new_message (void)
{
    GtkWidget *composer;
    
    composer = (GtkWidget *) create_new_composer ();
    
    gtk_widget_show (composer);
}

/**
 * em_utils_compose_new_message_with_mailto:
 * @url: mailto url
 *
 * Opens a new composer window as a child window of @parent's toplevel
 * window. If @url is non-NULL, the composer fields will be filled in
 * according to the values in the mailto url.
 **/
void
em_utils_compose_new_message_with_mailto (const char *url)
{
    EMsgComposer *composer;
    
    if (url != NULL)
        composer = e_msg_composer_new_from_url (url);
    else
        composer = e_msg_composer_new ();
    
    em_composer_utils_setup_default_callbacks (composer);
    
    gtk_widget_show ((GtkWidget *) composer);
}

/**
 * em_utils_post_to_url:
 * @url: mailto url
 *
 * Opens a new composer window as a child window of @parent's toplevel
 * window. If @url is non-NULL, the composer will default to posting
 * mail to the folder specified by @url.
 **/
void
em_utils_post_to_url (const char *url)
{
    EMsgComposer *composer;
    
    composer = e_msg_composer_new_post ();
    
    if (url != NULL)
        e_msg_composer_hdrs_set_post_to ((EMsgComposerHdrs *) ((EMsgComposer *) composer)->hdrs, url);
    
    em_composer_utils_setup_default_callbacks (composer);
    
    e_msg_composer_unset_changed (composer);
    e_msg_composer_drop_editor_undo (composer);
    
    gtk_widget_show ((GtkWidget *) composer);
}

/* Editing messages... */

static void
edit_message (CamelMimeMessage *message, CamelFolder *drafts, const char *uid)
{
    EMsgComposer *composer;
    
    composer = e_msg_composer_new_with_message (message);
    em_composer_utils_setup_callbacks (composer, NULL, NULL, 0, 0, drafts, uid);
    e_msg_composer_unset_changed (composer);
    e_msg_composer_drop_editor_undo (composer);
    
    gtk_widget_show (GTK_WIDGET (composer));
}

/**
 * em_utils_edit_message:
 * @message: message to edit
 *
 * Opens a composer filled in with the headers/mime-parts/etc of
 * @message.
 **/
void
em_utils_edit_message (CamelMimeMessage *message)
{
    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));
    
    edit_message (message, NULL, NULL);
}

static void
edit_messages (CamelFolder *folder, GPtrArray *uids, GPtrArray *msgs, void *user_data)
{
    int i;
    
    if (msgs == NULL)
        return;
    
    for (i = 0; i < msgs->len; i++) {
        camel_medium_remove_header (CAMEL_MEDIUM (msgs->pdata[i]), "X-Mailer");
        
        edit_message (msgs->pdata[i], folder, uids->pdata[i]);
    }
}

/**
 * em_utils_edit_messages:
 * @folder: folder containing messages to edit
 * @uids: uids of messages to edit
 *
 * Opens a composer for each message to be edited.
 **/
void
em_utils_edit_messages (CamelFolder *folder, GPtrArray *uids)
{
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);
    
    mail_get_messages (folder, uids, edit_messages, NULL);
}

/* Forwarding messages... */

static void
forward_attached (CamelFolder *folder, GPtrArray *messages, CamelMimePart *part, char *subject, void *user_data)
{
    EMsgComposer *composer;
    
    if (part == NULL)
        return;
    
    composer = create_new_composer ();
    e_msg_composer_set_headers (composer, NULL, NULL, NULL, NULL, subject);
    e_msg_composer_attach (composer, part);
    
    e_msg_composer_unset_changed (composer);
    e_msg_composer_drop_editor_undo (composer);
    
    gtk_widget_show (GTK_WIDGET (composer));
}

/**
 * em_utils_forward_attached:
 * @folder: folder containing messages to forward
 * @uids: uids of messages to forward
 *
 * If there is more than a single message in @uids, a multipart/digest
 * will be constructed and attached to a new composer window preset
 * with the appropriate header defaults for forwarding the first
 * message in the list. If only one message is to be forwarded, it is
 * forwarded as a simple message/rfc822 attachment.
 **/
void
em_utils_forward_attached (CamelFolder *folder, GPtrArray *uids)
{
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);
    
    mail_build_attachment (folder, uids, forward_attached, NULL);
}

static void
forward_non_attached (GPtrArray *messages, int style)
{
    CamelMimeMessage *message;
    CamelDataWrapper *wrapper;
    EMsgComposer *composer;
    char *subject, *text;
    int i;
    guint32 flags;

    if (messages->len == 0)
        return;

    flags = EM_FORMAT_QUOTE_HEADERS;
    if (style == MAIL_CONFIG_FORWARD_QUOTED)
        flags |= EM_FORMAT_QUOTE_CITE;

    for (i = 0; i < messages->len; i++) {
        message = messages->pdata[i];
        subject = mail_tool_generate_forward_subject (message);
        
        text = em_utils_message_to_html (message, _("-------- Forwarded Message --------"), flags);
        
        if (text) {
            composer = create_new_composer ();
            e_msg_composer_set_headers (composer, NULL, NULL, NULL, NULL, subject);
            e_msg_composer_set_body_text (composer, text);
            
            wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (message));
            if (CAMEL_IS_MULTIPART (wrapper))
                e_msg_composer_add_message_attachments (composer, message, FALSE);
            
            e_msg_composer_unset_changed (composer);
            e_msg_composer_drop_editor_undo (composer);
            
            gtk_widget_show (GTK_WIDGET (composer));
            
            g_free (text);
        }
        
        g_free (subject);
    }
}

static void
forward_inline (CamelFolder *folder, GPtrArray *uids, GPtrArray *messages, void *user_data)
{
    forward_non_attached (messages, MAIL_CONFIG_FORWARD_INLINE);
}

/**
 * em_utils_forward_inline:
 * @folder: folder containing messages to forward
 * @uids: uids of messages to forward
 *
 * Forwards each message in the 'inline' form, each in its own composer window.
 **/
void
em_utils_forward_inline (CamelFolder *folder, GPtrArray *uids)
{
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);
    
    mail_get_messages (folder, uids, forward_inline, NULL);
}

static void
forward_quoted (CamelFolder *folder, GPtrArray *uids, GPtrArray *messages, void *user_data)
{
    forward_non_attached (messages, MAIL_CONFIG_FORWARD_QUOTED);
}

/**
 * em_utils_forward_quoted:
 * @folder: folder containing messages to forward
 * @uids: uids of messages to forward
 *
 * Forwards each message in the 'quoted' form (each line starting with
 * a "> "), each in its own composer window.
 **/
void
em_utils_forward_quoted (CamelFolder *folder, GPtrArray *uids)
{
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);
    
    mail_get_messages (folder, uids, forward_quoted, NULL);
}

/**
 * em_utils_forward_message:
 * @parent: parent window
 * @message: message to be forwarded
 *
 * Forwards a message in the user's configured default style.
 **/
void
em_utils_forward_message (CamelMimeMessage *message)
{
    GPtrArray *messages;
    CamelMimePart *part;
    GConfClient *gconf;
    char *subject;
    int mode;
    
    messages = g_ptr_array_new ();
    g_ptr_array_add (messages, message);
    
    gconf = mail_config_get_gconf_client ();
    mode = gconf_client_get_int (gconf, "/apps/evolution/mail/format/forward_style", NULL);
    
    switch (mode) {
    case MAIL_CONFIG_FORWARD_ATTACHED:
    default:
        part = mail_tool_make_message_attachment (message);
        
        subject = mail_tool_generate_forward_subject (message);
        
        forward_attached (NULL, messages, part, subject, NULL);
        camel_object_unref (part);
        g_free (subject);
        break;
    case MAIL_CONFIG_FORWARD_INLINE:
        forward_non_attached (messages, MAIL_CONFIG_FORWARD_INLINE);
        break;
    case MAIL_CONFIG_FORWARD_QUOTED:
        forward_non_attached (messages, MAIL_CONFIG_FORWARD_QUOTED);
        break;
    }
    
    g_ptr_array_free (messages, TRUE);
}

/**
 * em_utils_forward_messages:
 * @folder: folder containing messages to forward
 * @uids: uids of messages to forward
 *
 * Forwards a group of messages in the user's configured default
 * style.
 **/
void
em_utils_forward_messages (CamelFolder *folder, GPtrArray *uids)
{
    GConfClient *gconf;
    int mode;
    
    gconf = mail_config_get_gconf_client ();
    mode = gconf_client_get_int (gconf, "/apps/evolution/mail/format/forward_style", NULL);
    
    switch (mode) {
    case MAIL_CONFIG_FORWARD_ATTACHED:
    default:
        em_utils_forward_attached (folder, uids);
        break;
    case MAIL_CONFIG_FORWARD_INLINE:
        em_utils_forward_inline (folder, uids);
        break;
    case MAIL_CONFIG_FORWARD_QUOTED:
        em_utils_forward_quoted (folder, uids);
        break;
    }
}

/* Redirecting messages... */

static EMsgComposer *
redirect_get_composer (CamelMimeMessage *message)
{
    EMsgComposer *composer;
    EAccount *account;
    
    /* QMail will refuse to send a message if it finds one of
       it's Delivered-To headers in the message, so remove all
       Delivered-To headers. Fixes bug #23635. */
    while (camel_medium_get_header (CAMEL_MEDIUM (message), "Delivered-To"))
        camel_medium_remove_header (CAMEL_MEDIUM (message), "Delivered-To");
    
    account = guess_account (message);
    
    composer = e_msg_composer_new_redirect (message, account ? account->name : NULL);
    
    em_composer_utils_setup_default_callbacks (composer);
    
    return composer;
}

/**
 * em_utils_redirect_message:
 * @message: message to redirect
 *
 * Opens a composer to redirect @message (Note: only headers will be
 * editable). Adds Resent-From/Resent-To/etc headers.
 **/
void
em_utils_redirect_message (CamelMimeMessage *message)
{
    EMsgComposer *composer;
    CamelDataWrapper *wrapper;
    
    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));
    
    composer = redirect_get_composer (message);
    
    wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (message));
    if (CAMEL_IS_MULTIPART (wrapper))
        e_msg_composer_add_message_attachments (composer, message, FALSE);
    
    gtk_widget_show (GTK_WIDGET (composer));
    e_msg_composer_unset_changed (composer);
    e_msg_composer_drop_editor_undo (composer);
}

static void
redirect_msg (CamelFolder *folder, const char *uid, CamelMimeMessage *message, void *user_data)
{
    if (message == NULL)
        return;
    
    em_utils_redirect_message (message);
}

/**
 * em_utils_redirect_message_by_uid:
 * @folder: folder containing message to be redirected
 * @uid: uid of message to be redirected
 *
 * Opens a composer to redirect the message (Note: only headers will
 * be editable). Adds Resent-From/Resent-To/etc headers.
 **/
void
em_utils_redirect_message_by_uid (CamelFolder *folder, const char *uid)
{
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uid != NULL);
    
    mail_get_message (folder, uid, redirect_msg, NULL, mail_thread_new);
}

/* Replying to messages... */

static GHashTable *
generate_account_hash (void)
{
    GHashTable *account_hash;
    EAccount *account, *def;
    EAccountList *accounts;
    EIterator *iter;
    
    accounts = mail_config_get_accounts ();
    account_hash = g_hash_table_new (camel_strcase_hash, camel_strcase_equal);
    
    /* add the default account to the hash first */
    if ((def = mail_config_get_default_account ())) {
        if (def->id->address)
            g_hash_table_insert (account_hash, (char *) def->id->address, (void *) def);
    }
    
    iter = e_list_get_iterator ((EList *) accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);
        
        if (account->id->address) {
            EAccount *acnt;
            
            /* Accounts with identical email addresses that are enabled
             * take precedence over the accounts that aren't. If all
             * accounts with matching email addresses are disabled, then
             * the first one in the list takes precedence. The default
             * account always takes precedence no matter what.
             */
            acnt = g_hash_table_lookup (account_hash, account->id->address);
            if (acnt && acnt != def && !acnt->enabled && account->enabled) {
                g_hash_table_remove (account_hash, acnt->id->address);
                acnt = NULL;
            }
            
            if (!acnt)
                g_hash_table_insert (account_hash, (char *) account->id->address, (void *) account);
        }
        
        e_iterator_next (iter);
    }
    
    g_object_unref (iter);
    
    return account_hash;
}

static EABDestination **
em_utils_camel_address_to_destination (CamelInternetAddress *iaddr)
{
    EABDestination *dest, **destv;
    int n, i, j;
    
    if (iaddr == NULL)
        return NULL;
    
    if ((n = camel_address_length ((CamelAddress *) iaddr)) == 0)
        return NULL;
    
    destv = g_malloc (sizeof (EABDestination *) * (n + 1));
    for (i = 0, j = 0; i < n; i++) {
        const char *name, *addr;
        
        if (camel_internet_address_get (iaddr, i, &name, &addr)) {
            dest = eab_destination_new ();
            eab_destination_set_name (dest, name);
            eab_destination_set_email (dest, addr);
            
            destv[j++] = dest;
        }
    }
    
    if (j == 0) {
        g_free (destv);
        return NULL;
    }
    
    destv[j] = NULL;
    
    return destv;
}

static EMsgComposer *
reply_get_composer (CamelMimeMessage *message, EAccount *account,
            CamelInternetAddress *to, CamelInternetAddress *cc)
{
    const char *message_id, *references;
    EABDestination **tov, **ccv;
    EMsgComposer *composer;
    char *subject;
    
    g_return_val_if_fail (CAMEL_IS_MIME_MESSAGE (message), NULL);
    g_return_val_if_fail (to == NULL || CAMEL_IS_INTERNET_ADDRESS (to), NULL);
    g_return_val_if_fail (cc == NULL || CAMEL_IS_INTERNET_ADDRESS (cc), NULL);
    
    composer = e_msg_composer_new ();
    
    /* construct the tov/ccv */
    tov = em_utils_camel_address_to_destination (to);
    ccv = em_utils_camel_address_to_destination (cc);
    
    /* Set the subject of the new message. */
    if ((subject = (char *) camel_mime_message_get_subject (message))) {
        if (strncasecmp (subject, "Re: ", 4) != 0)
            subject = g_strdup_printf ("Re: %s", subject);
        else
            subject = g_strdup (subject);
    } else {
        subject = g_strdup ("");
    }
    
    e_msg_composer_set_headers (composer, account ? account->name : NULL, tov, ccv, NULL, subject);
    
    g_free (subject);
    
    /* Add In-Reply-To and References. */
    message_id = camel_medium_get_header (CAMEL_MEDIUM (message), "Message-Id");
    references = camel_medium_get_header (CAMEL_MEDIUM (message), "References");
    if (message_id) {
        char *reply_refs;
        
        e_msg_composer_add_header (composer, "In-Reply-To", message_id);
        
        if (references)
            reply_refs = g_strdup_printf ("%s %s", references, message_id);
        else
            reply_refs = g_strdup (message_id);
        
        e_msg_composer_add_header (composer, "References", reply_refs);
        g_free (reply_refs);
    } else if (references) {
        e_msg_composer_add_header (composer, "References", references);
    }
    
    e_msg_composer_drop_editor_undo (composer);
    
    return composer;
}

static EAccount *
guess_account (CamelMimeMessage *message)
{
    const CamelInternetAddress *to, *cc;
    GHashTable *account_hash;
    EAccount *account = NULL;
    const char *addr;
    int i;
    
    to = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_TO);
    cc = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_CC);
    
    if (to == NULL && cc == NULL)
        return NULL;
    
    account_hash = generate_account_hash ();
    
    if (to) {
        for (i = 0; camel_internet_address_get (to, i, NULL, &addr); i++) {
            account = g_hash_table_lookup (account_hash, addr);
            if (account)
                goto found;
        }
    }
    
    if (cc) {
        for (i = 0; camel_internet_address_get (cc, i, NULL, &addr); i++) {
            account = g_hash_table_lookup (account_hash, addr);
            if (account)
                goto found;
        }
    }
    
 found:
    
    g_hash_table_destroy (account_hash);
    
    return account;
}

static void
get_reply_sender (CamelMimeMessage *message, CamelInternetAddress **to)
{
    const CamelInternetAddress *reply_to;
    const char *name, *addr;
    int i;
    
    reply_to = camel_mime_message_get_reply_to (message);
    if (!reply_to)
        reply_to = camel_mime_message_get_from (message);
    
    if (reply_to) {
        *to = camel_internet_address_new ();
        
        for (i = 0; camel_internet_address_get (reply_to, i, &name, &addr); i++)
            camel_internet_address_add (*to, name, addr);
    }
}

static gboolean
get_reply_list (CamelMimeMessage *message, CamelInternetAddress **to)
{
    const char *header, *p;
    char *addr;
    
    /* Examples:
     * 
     * List-Post: <mailto:list@host.com>
     * List-Post: <mailto:moderator@host.com?subject=list%20posting>
     * List-Post: NO (posting not allowed on this list)
     */
    if (!(header = camel_medium_get_header ((CamelMedium *) message, "List-Post")))
        return FALSE;
    
    while (*header == ' ' || *header == '\t')
        header++;
    
    /* check for NO */
    if (!strncasecmp (header, "NO", 2))
        return FALSE;
    
    /* Search for the first mailto angle-bracket enclosed URL.
     * (See rfc2369, Section 2, paragraph 3 for details) */
    if (!(header = camel_strstrcase (header, "<mailto:")))
        return FALSE;
    
    header += 8;
    
    p = header;
    while (*p && !strchr ("?>", *p))
        p++;
    
    addr = g_strndup (header, p - header);
    
    *to = camel_internet_address_new ();
    camel_internet_address_add (*to, NULL, addr);
    
    g_free (addr);
    
    return TRUE;
}

static void
concat_unique_addrs (CamelInternetAddress *dest, const CamelInternetAddress *src, GHashTable *rcpt_hash)
{
    const char *name, *addr;
    int i;
    
    for (i = 0; camel_internet_address_get (src, i, &name, &addr); i++) {
        if (!g_hash_table_lookup (rcpt_hash, addr)) {
            camel_internet_address_add (dest, name, addr);
            g_hash_table_insert (rcpt_hash, (char *) addr, GINT_TO_POINTER (1));
        }
    }
}

static void
get_reply_all (CamelMimeMessage *message, CamelInternetAddress **to, CamelInternetAddress **cc)
{
    const CamelInternetAddress *reply_to, *to_addrs, *cc_addrs;
    const char *name, *addr;
    GHashTable *rcpt_hash;
    int i;
    
    rcpt_hash = generate_account_hash ();
    
    reply_to = camel_mime_message_get_reply_to (message);
    if (!reply_to)
        reply_to = camel_mime_message_get_from (message);
    
    to_addrs = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_TO);
    cc_addrs = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_CC);
    
    *to = camel_internet_address_new ();
    *cc = camel_internet_address_new ();
    
    if (reply_to) {
        for (i = 0; camel_internet_address_get (reply_to, i, &name, &addr); i++) {
            /* ignore references to the Reply-To address in the To and Cc lists */
            if (addr && !g_hash_table_lookup (rcpt_hash, addr)) {
                /* In the case that we are doing a Reply-To-All, we do not want
                   to include the user's email address because replying to oneself
                   is kinda silly. */
                
                camel_internet_address_add (*to, name, addr);
                g_hash_table_insert (rcpt_hash, (char *) addr, GINT_TO_POINTER (1));
            }
        }
    }
    
    concat_unique_addrs (*cc, to_addrs, rcpt_hash);
    concat_unique_addrs (*cc, cc_addrs, rcpt_hash);
    
    /* promote the first Cc: address to To: if To: is empty */
    if (camel_address_length ((CamelAddress *) *to) == 0 && camel_address_length ((CamelAddress *) *cc) > 0) {
        camel_internet_address_get (*cc, 0, &name, &addr);
        camel_internet_address_add (*to, name, addr);
        camel_address_remove ((CamelAddress *) *cc, 0);
    }
    
    g_hash_table_destroy (rcpt_hash);
}

static void
composer_set_body (EMsgComposer *composer, CamelMimeMessage *message)
{
    const CamelInternetAddress *sender;
    char *text, *credits, format[256];
    const char *name, *addr;
    CamelMimePart *part;
    GConfClient *gconf;
    time_t date;
    int date_offset;
    
    gconf = mail_config_get_gconf_client ();
    
    switch (gconf_client_get_int (gconf, "/apps/evolution/mail/format/reply_style", NULL)) {
    case MAIL_CONFIG_REPLY_DO_NOT_QUOTE:
        /* do nothing */
        break;
    case MAIL_CONFIG_REPLY_ATTACH:
        /* attach the original message as an attachment */
        part = mail_tool_make_message_attachment (message);
        e_msg_composer_attach (composer, part);
        camel_object_unref (part);
        break;
    case MAIL_CONFIG_REPLY_QUOTED:
    default:
        /* do what any sane user would want when replying... */
        sender = camel_mime_message_get_from (message);
        if (sender != NULL && camel_address_length (CAMEL_ADDRESS (sender)) > 0) {
            camel_internet_address_get (sender, 0, &name, &addr);
        } else {
            name = _("an unknown sender");
        }

        date = camel_mime_message_get_date(message, &date_offset);
        /* Convert to UTC */
        date += (date_offset / 100) * 60 * 60;
        date += (date_offset % 100) * 60;

        /* translators: attribution string used when quoting messages,
           it must contain a single single %%+05d followed by a single '%%s' */
        e_utf8_strftime(format, sizeof(format), _("On %a, %Y-%m-%d at %H:%M %%+05d, %%s wrote:"), gmtime(&date));
        credits = g_strdup_printf(format, date_offset, name && *name ? name : addr);
        text = em_utils_message_to_html(message, credits, EM_FORMAT_QUOTE_CITE);
        g_free (credits);
        e_msg_composer_set_body_text(composer, text);
        g_free (text);
        break;
    }
    
    e_msg_composer_drop_editor_undo (composer);
}

/**
 * em_utils_reply_to_message:
 * @message: message to reply to
 * @mode: reply mode
 *
 * Creates a new composer ready to reply to @message.
 **/
void
em_utils_reply_to_message (CamelMimeMessage *message, int mode)
{
    CamelInternetAddress *to = NULL, *cc = NULL;
    EMsgComposer *composer;
    EAccount *account;
    
    account = guess_account (message);
    
    switch (mode) {
    case REPLY_MODE_SENDER:
        get_reply_sender (message, &to);
        break;
    case REPLY_MODE_LIST:
        if (get_reply_list (message, &to))
            break;
    case REPLY_MODE_ALL:
        get_reply_all (message, &to, &cc);
        break;
    }
    
    composer = reply_get_composer (message, account, to, cc);
    e_msg_composer_add_message_attachments (composer, message, TRUE);
    
    if (to != NULL)
        camel_object_unref (to);
    
    if (cc != NULL)
        camel_object_unref (cc);
    
    composer_set_body (composer, message);
    
    em_composer_utils_setup_default_callbacks (composer);
    
    gtk_widget_show (GTK_WIDGET (composer));
    e_msg_composer_unset_changed (composer);
}

static void
reply_to_message (CamelFolder *folder, const char *uid, CamelMimeMessage *message, void *user_data)
{
    CamelInternetAddress *to = NULL, *cc = NULL;
    EMsgComposer *composer;
    EAccount *account;
    guint32 flags;
    int mode;
    
    mode = GPOINTER_TO_INT (user_data);
    
    account = guess_account (message);
    flags = CAMEL_MESSAGE_ANSWERED | CAMEL_MESSAGE_SEEN;
    
    switch (mode) {
    case REPLY_MODE_SENDER:
        get_reply_sender (message, &to);
        break;
    case REPLY_MODE_LIST:
        flags |= CAMEL_MESSAGE_ANSWERED_ALL;
        if (get_reply_list (message, &to))
            break;
    case REPLY_MODE_ALL:
        flags |= CAMEL_MESSAGE_ANSWERED_ALL;
        get_reply_all (message, &to, &cc);
        break;
    }
    
    composer = reply_get_composer (message, account, to, cc);
    e_msg_composer_add_message_attachments (composer, message, TRUE);
    
    if (to != NULL)
        camel_object_unref (to);
    
    if (cc != NULL)
        camel_object_unref (cc);
    
    composer_set_body (composer, message);
    
    em_composer_utils_setup_callbacks (composer, folder, uid, flags, flags, NULL, NULL);
    
    gtk_widget_show (GTK_WIDGET (composer));
    e_msg_composer_unset_changed (composer);
}

/**
 * em_utils_reply_to_message_by_uid:
 * @folder: folder containing message to reply to
 * @uid: message uid
 * @mode: reply mode
 *
 * Creates a new composer ready to reply to the message referenced by
 * @folder and @uid.
 **/
void
em_utils_reply_to_message_by_uid (CamelFolder *folder, const char *uid, int mode)
{
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uid != NULL);
    
    mail_get_message (folder, uid, reply_to_message, GINT_TO_POINTER (mode), mail_thread_new);
}

/* Posting replies... */

static void
post_reply_to_message (CamelFolder *folder, const char *uid, CamelMimeMessage *message, void *user_data)
{
    /* FIXME: would be nice if this shared more code with reply_get_composer() */
    const char *message_id, *references;
    CamelInternetAddress *to = NULL;
    EABDestination **tov = NULL;
    EMsgComposer *composer;
    char *subject, *url;
    EAccount *account;
    guint32 flags;
    
    account = guess_account (message);
    flags = CAMEL_MESSAGE_ANSWERED | CAMEL_MESSAGE_SEEN;
    
    get_reply_sender (message, &to);
    
    composer = e_msg_composer_new_post ();
    
    /* construct the tov/ccv */
    tov = em_utils_camel_address_to_destination (to);
    
    /* Set the subject of the new message. */
    if ((subject = (char *) camel_mime_message_get_subject (message))) {
        if (strncasecmp (subject, "Re: ", 4) != 0)
            subject = g_strdup_printf ("Re: %s", subject);
        else
            subject = g_strdup (subject);
    } else {
        subject = g_strdup ("");
    }
    
    e_msg_composer_set_headers (composer, account ? account->name : NULL, tov, NULL, NULL, subject);
    
    g_free (subject);
    
    url = mail_tools_folder_to_url (folder);
    e_msg_composer_hdrs_set_post_to ((EMsgComposerHdrs *) composer->hdrs, url);
    g_free (url);
    
    /* Add In-Reply-To and References. */
    message_id = camel_medium_get_header (CAMEL_MEDIUM (message), "Message-Id");
    references = camel_medium_get_header (CAMEL_MEDIUM (message), "References");
    if (message_id) {
        char *reply_refs;
        
        e_msg_composer_add_header (composer, "In-Reply-To", message_id);
        
        if (references)
            reply_refs = g_strdup_printf ("%s %s", references, message_id);
        else
            reply_refs = g_strdup (message_id);
        
        e_msg_composer_add_header (composer, "References", reply_refs);
        g_free (reply_refs);
    } else if (references) {
        e_msg_composer_add_header (composer, "References", references);
    }
    
    e_msg_composer_drop_editor_undo (composer);
    
    e_msg_composer_add_message_attachments (composer, message, TRUE);
    
    if (to != NULL)
        camel_object_unref (to);
    
    composer_set_body (composer, message);
    
    em_composer_utils_setup_callbacks (composer, folder, uid, flags, flags, NULL, NULL);
    
    gtk_widget_show (GTK_WIDGET (composer));    
    e_msg_composer_unset_changed (composer);
}

/**
 * em_utils_post_reply_to_message_by_uid:
 * @folder: folder containing message to reply to
 * @uid: message uid
 * @mode: reply mode
 *
 * Creates a new composer (post mode) ready to reply to the message
 * referenced by @folder and @uid.
 **/
void
em_utils_post_reply_to_message_by_uid (CamelFolder *folder, const char *uid)
{
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uid != NULL);
    
    mail_get_message (folder, uid, post_reply_to_message, NULL, mail_thread_new);
}

/* Saving messages... */

static GtkFileSelection *
emu_get_save_filesel (GtkWidget *parent, const char *title, const char *name)
{
    GtkFileSelection *filesel;
    char *gdir, *mname = NULL, *filename;
    const char *realname, *dir;
    GConfClient *gconf;

    filesel = (GtkFileSelection *)gtk_file_selection_new(title);
    if (parent)
        e_dialog_set_transient_for((GtkWindow *)filesel, parent);

    gconf = gconf_client_get_default();
    dir = gdir = gconf_client_get_string(gconf, "/apps/evolution/mail/save_dir", NULL);
    g_object_unref(gconf);
    if (dir == NULL)
        dir = g_get_home_dir();

    if (name && name[0]) {
        realname = mname = g_strdup(name);
        e_filename_make_safe(mname);
    } else {
        realname = "/";
    }

    filename = g_build_filename(dir, realname, NULL);
    gtk_file_selection_set_filename(filesel, filename);
    g_free(filename);
    g_free(mname);
    g_free (gdir);

    return filesel;
}

static void
emu_update_save_path(const char *filename)
{
    char *dir = g_path_get_dirname(filename);
    GConfClient *gconf = gconf_client_get_default();

    gconf_client_set_string(gconf, "/apps/evolution/mail/save_dir", dir, NULL);
    g_object_unref(gconf);
    g_free(dir);
}

static gboolean
emu_can_save(GtkWindow *parent, const char *path)
{
    struct stat st;
    
    if (path[0] == 0)
        return FALSE;

    /* make sure we can actually save to it... */
    if (stat (path, &st) != -1 && !S_ISREG (st.st_mode))
        return FALSE;
    
    if (access (path, F_OK) == 0) {
        if (access (path, W_OK) != 0) {
            e_notice (parent, GTK_MESSAGE_ERROR,
                 _("Cannot save to `%s'\n %s"), path, g_strerror (errno));
            return FALSE;
        }
        
        return em_utils_prompt_user (parent, GTK_RESPONSE_NO, NULL,
                         _("`%s' already exists.\nOverwrite it?"), path);
    }
    
    return TRUE;
}

static void
emu_save_part_response(GtkFileSelection *filesel, int response, CamelMimePart *part)
{
    if (response == GTK_RESPONSE_OK) {
        const char *path = gtk_file_selection_get_filename(filesel);

        if (!emu_can_save((GtkWindow *)filesel, path))
            return;

        emu_update_save_path(path);
        /* FIXME: popup error if it fails? */
        mail_save_part(part, path, NULL, NULL);
    }

    gtk_widget_destroy((GtkWidget *)filesel);
    camel_object_unref(part);
}

/**
 * em_utils_save_part:
 * @parent: parent window
 * @prompt: prompt string
 * @part: part to save
 *
 * Saves a mime part to disk (prompting the user for filename).
 **/
void
em_utils_save_part(GtkWidget *parent, const char *prompt, CamelMimePart *part)
{
    const char *name;
    GtkFileSelection *filesel;

    name = camel_mime_part_get_filename(part);
    if (name == NULL) {
        if (CAMEL_IS_MIME_MESSAGE(part)) {
            name = camel_mime_message_get_subject((CamelMimeMessage *)part);
            if (name == NULL)
                name = _("message");
        } else {
            name = _("attachment");
        }
    }

    filesel = emu_get_save_filesel(parent, prompt, name);
    camel_object_ref(part);
    g_signal_connect(filesel, "response", G_CALLBACK(emu_save_part_response), part);
    gtk_widget_show((GtkWidget *)filesel);
}

/**
 * em_utils_save_part_to_file:
 * @parent: parent window
 * @filename: filename to save to
 * @part: part to save
 * 
 * Save a part's content to a specific file
 * Creates all needed directories and overwrites without prompting
 *
 * Returns %TRUE if saving succeeded, %FALSE otherwise
 **/
gboolean
em_utils_save_part_to_file(GtkWidget *parent, const char *filename, CamelMimePart *part) 
{
    int done;
    char *dirname;
    struct stat st;
    
    if (filename[0] == 0)
        return FALSE;
    
    dirname = g_path_get_dirname(filename);
    if (camel_mkdir(dirname, 0777) == -1) {
        e_notice(parent, GTK_MESSAGE_ERROR,
                 _("Cannot save to `%s'\n %s"), filename, g_strerror(errno));
        g_free(dirname);
        return FALSE;
    }
    g_free(dirname);

    if (access(filename, F_OK) == 0) {
        if (access(filename, W_OK) != 0) {
            e_notice(parent, GTK_MESSAGE_ERROR,
                 _("Cannot save to `%s'\n %s"), filename, g_strerror(errno));
            return FALSE;
        }
    }
    
    if (stat(filename, &st) != -1 && !S_ISREG(st.st_mode)) {
        e_notice(parent, GTK_MESSAGE_ERROR,
                 _("Error: '%s' exists and is not a regular file"), filename);
        return FALSE;
    }
    
    /* FIXME: This doesn't handle default charsets */
    mail_msg_wait(mail_save_part(part, filename, emu_save_part_done, &done));
    
    return done;
}

struct _save_messages_data {
    CamelFolder *folder;
    GPtrArray *uids;
};

static void
emu_save_messages_response(GtkFileSelection *filesel, int response, struct _save_messages_data *data)
{
    if (response == GTK_RESPONSE_OK) {
        const char *path = gtk_file_selection_get_filename(filesel);

        if (!emu_can_save((GtkWindow *)filesel, path))
            return;

        emu_update_save_path(path);
        mail_save_messages(data->folder, data->uids, path, NULL, NULL);
        data->uids = NULL;
    }

    camel_object_unref(data->folder);
    if (data->uids)
        em_utils_uids_free(data->uids);
    g_free(data);
    gtk_widget_destroy((GtkWidget *)filesel);
}

/**
 * em_utils_save_messages:
 * @parent: parent window
 * @folder: folder containing messages to save
 * @uids: uids of messages to save
 *
 * Saves a group of messages to disk in mbox format (prompting the
 * user for filename).
 **/
void
em_utils_save_messages (GtkWidget *parent, CamelFolder *folder, GPtrArray *uids)
{
    struct _save_messages_data *data;
    GtkFileSelection *filesel;

    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);

    filesel = emu_get_save_filesel(parent, _("Save Message..."), NULL);
    camel_object_ref(folder);
    
    data = g_malloc(sizeof(struct _save_messages_data));
    data->folder = folder;
    data->uids = uids;

    g_signal_connect(filesel, "response", G_CALLBACK(emu_save_messages_response), data);
    gtk_widget_show((GtkWidget *)filesel);
}

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

static void
emu_add_address_cb(BonoboListener *listener, const char *name, const CORBA_any *any, CORBA_Environment *ev, void *data)
{
    char *type = bonobo_event_subtype(name);
    
    if (!strcmp(type, "Destroy"))
        gtk_widget_destroy((GtkWidget *)data);
    
    g_free(type);
}

/**
 * em_utils_add_address:
 * @parent: 
 * @email: 
 * 
 * Add address @email to the addressbook.
 **/
void em_utils_add_address(struct _GtkWidget *parent, const char *email)
{
    GtkWidget *win;
    GtkWidget *control;
    /*GtkWidget *socket;*/

    win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title((GtkWindow *)win, _("Add address"));
    
    control = bonobo_widget_new_control("OAFIID:GNOME_Evolution_Addressbook_AddressPopup:" BASE_VERSION, CORBA_OBJECT_NIL);
    bonobo_widget_set_property((BonoboWidget *)control, "email", TC_CORBA_string, email, NULL);
    
    bonobo_event_source_client_add_listener(bonobo_widget_get_objref((BonoboWidget *)control), emu_add_address_cb, NULL, NULL, win);
    
    /*socket = find_socket (GTK_CONTAINER (control));
      g_object_weak_ref ((GObject *) socket, (GWeakNotify) gtk_widget_destroy, win);*/

    gtk_container_add((GtkContainer *)win, control);
    gtk_widget_show_all(win);
}

/* ********************************************************************** */
/* Flag-for-Followup... */

/* tag-editor callback data */
struct ted_t {
    MessageTagEditor *editor;
    CamelFolder *folder;
    GPtrArray *uids;
};

static void
ted_free (struct ted_t *ted)
{
    camel_object_unref (ted->folder);
    em_utils_uids_free (ted->uids);
    g_free (ted);
}

static void
tag_editor_response (GtkWidget *dialog, int button, struct ted_t *ted)
{
    CamelFolder *folder;
    CamelTag *tags, *t;
    GPtrArray *uids;
    int i;
    
    if (button == GTK_RESPONSE_OK && (tags = message_tag_editor_get_tag_list (ted->editor))) {
        folder = ted->folder;
        uids = ted->uids;
        
        camel_folder_freeze (folder);
        for (i = 0; i < uids->len; i++) {
            for (t = tags; t; t = t->next)
                camel_folder_set_message_user_tag (folder, uids->pdata[i], t->name, t->value);
        }
        
        camel_folder_thaw (folder);
        camel_tag_list_free (&tags);
    }
    
    gtk_widget_destroy (dialog);
}

/**
 * em_utils_flag_for_followup:
 * @parent: parent window
 * @folder: folder containing messages to flag
 * @uids: uids of messages to flag
 *
 * Open the Flag-for-Followup editor for the messages specified by
 * @folder and @uids.
 **/
void
em_utils_flag_for_followup (GtkWidget *parent, CamelFolder *folder, GPtrArray *uids)
{
    GtkWidget *editor;
    struct ted_t *ted;
    int i;
    
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);
    
    editor = (GtkWidget *) message_tag_followup_new ();
    
    if (parent != NULL)
        e_dialog_set_transient_for ((GtkWindow *) editor, parent);
    
    camel_object_ref (folder);
    
    ted = g_new (struct ted_t, 1);
    ted->editor = MESSAGE_TAG_EDITOR (editor);
    ted->folder = folder;
    ted->uids = uids;
    
    for (i = 0; i < uids->len; i++) {
        CamelMessageInfo *info;
        
        info = camel_folder_get_message_info (folder, uids->pdata[i]);
        message_tag_followup_append_message (MESSAGE_TAG_FOLLOWUP (editor),
                             camel_message_info_from (info),
                             camel_message_info_subject (info));
    }
    
    /* special-case... */
    if (uids->len == 1) {
        CamelMessageInfo *info;
        
        info = camel_folder_get_message_info (folder, uids->pdata[0]);
        if (info) {
            if (info->user_tags)
                message_tag_editor_set_tag_list (MESSAGE_TAG_EDITOR (editor), info->user_tags);
            camel_folder_free_message_info (folder, info);
        }
    }
    
    g_signal_connect (editor, "response", G_CALLBACK (tag_editor_response), ted);
    g_object_weak_ref ((GObject *) editor, (GWeakNotify) ted_free, ted);
    
    gtk_widget_show (editor);
}

/**
 * em_utils_flag_for_followup_clear:
 * @parent: parent window
 * @folder: folder containing messages to unflag
 * @uids: uids of messages to unflag
 *
 * Clears the Flag-for-Followup flag on the messages referenced by
 * @folder and @uids.
 **/
void
em_utils_flag_for_followup_clear (GtkWidget *parent, CamelFolder *folder, GPtrArray *uids)
{
    int i;
    
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);
    
    camel_folder_freeze (folder);
    for (i = 0; i < uids->len; i++) {
        camel_folder_set_message_user_tag (folder, uids->pdata[i], "follow-up", "");
        camel_folder_set_message_user_tag (folder, uids->pdata[i], "due-by", "");
        camel_folder_set_message_user_tag (folder, uids->pdata[i], "completed-on", "");
    }
    camel_folder_thaw (folder);
    
    em_utils_uids_free (uids);
}

/**
 * em_utils_flag_for_followup_completed:
 * @parent: parent window
 * @folder: folder containing messages to 'complete'
 * @uids: uids of messages to 'complete'
 *
 * Sets the completed state (and date/time) for each message
 * referenced by @folder and @uids that is marked for
 * Flag-for-Followup.
 **/
void
em_utils_flag_for_followup_completed (GtkWidget *parent, CamelFolder *folder, GPtrArray *uids)
{
    char *now;
    int i;
    
    g_return_if_fail (CAMEL_IS_FOLDER (folder));
    g_return_if_fail (uids != NULL);
    
    now = camel_header_format_date (time (NULL), 0);
    
    camel_folder_freeze (folder);
    for (i = 0; i < uids->len; i++) {
        const char *tag;
        
        tag = camel_folder_get_message_user_tag (folder, uids->pdata[i], "follow-up");
        if (tag == NULL || *tag == '\0')
            continue;
        
        camel_folder_set_message_user_tag (folder, uids->pdata[i], "completed-on", now);
    }
    camel_folder_thaw (folder);
    
    g_free (now);
    
    em_utils_uids_free (uids);
}

#include "camel/camel-stream-mem.h"
#include "camel/camel-stream-filter.h"
#include "camel/camel-mime-filter-from.h"

/* This kind of sucks, because for various reasons most callers need to run synchronously
   in the gui thread, however this could take a long, blocking time, to run */
static int
em_utils_write_messages_to_stream(CamelFolder *folder, GPtrArray *uids, CamelStream *stream)
{
    CamelStreamFilter *filtered_stream;
    CamelMimeFilterFrom *from_filter;
    int i, res = 0;

    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(from_filter);
    
    for (i=0; i<uids->len; i++) {
        CamelMimeMessage *message;
        char *from;

        message = camel_folder_get_message(folder, uids->pdata[i], NULL);
        if (message == NULL) {
            res = -1;
            break;
        }

        /* we need to flush after each stream write since we are writing to the same stream */
        from = camel_mime_message_build_mbox_from(message);

        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)
            res = -1;
        
        g_free(from);
        camel_object_unref(message);

        if (res == -1)
            break;
    }

    camel_object_unref(filtered_stream);

    return res;
}

/* This kind of sucks, because for various reasons most callers need to run synchronously
   in the gui thread, however this could take a long, blocking time, to run */
static int
em_utils_read_messages_from_stream(CamelFolder *folder, CamelStream *stream)
{
    CamelException *ex = camel_exception_new();
    CamelMimeParser *mp = camel_mime_parser_new();
    int res = -1;

    camel_mime_parser_scan_from(mp, TRUE);
    camel_mime_parser_init_with_stream(mp, stream);
    camel_object_unref(stream);

    while (camel_mime_parser_step(mp, 0, 0) == CAMEL_MIME_PARSER_STATE_FROM) {
        CamelMimeMessage *msg;

        /* NB: de-from filter, once written */
        msg = camel_mime_message_new();
        if (camel_mime_part_construct_from_parser((CamelMimePart *)msg, mp) == -1) {
            camel_object_unref(msg);
            break;
        }
        
        camel_folder_append_message(folder, msg, NULL, NULL, ex);
        camel_object_unref(msg);
        
        if (camel_exception_is_set (ex))
            break;
        
        camel_mime_parser_step(mp, 0, 0);
    }
    
    camel_object_unref(mp);
    if (!camel_exception_is_set(ex))
        res = 0;
    camel_exception_free(ex);

    return res;
}

/**
 * em_utils_selection_set_mailbox:
 * @data: selection data
 * @folder: folder containign messages to copy into the selection
 * @uids: uids of the messages to copy into the selection
 * 
 * Creates a mailbox-format selection.
 * Warning: Could be BIG!
 * Warning: This could block the ui for an extended period.
 **/
void
em_utils_selection_set_mailbox(GtkSelectionData *data, CamelFolder *folder, GPtrArray *uids)
{
    CamelStream *stream;

    stream = camel_stream_mem_new();
    if (em_utils_write_messages_to_stream(folder, uids, stream) == 0)
        gtk_selection_data_set(data, data->target, 8,
                       ((CamelStreamMem *)stream)->buffer->data,
                       ((CamelStreamMem *)stream)->buffer->len);

    camel_object_unref(stream);
}

/**
 * em_utils_selection_get_mailbox:
 * @data: selection data
 * @folder: 
 * 
 * Receive a mailbox selection/dnd
 * Warning: Could be BIG!
 * Warning: This could block the ui for an extended period.
 * FIXME: Exceptions?
 **/
void
em_utils_selection_get_mailbox(GtkSelectionData *data, CamelFolder *folder)
{
    CamelStream *stream;

    if (data->data == NULL || data->length == -1)
        return;

    /* TODO: a stream mem with read-only access to existing data? */
    /* NB: Although copying would let us run this async ... which it should */
    stream = camel_stream_mem_new_with_buffer(data->data, data->length);
    em_utils_read_messages_from_stream(folder, stream);
    camel_object_unref(stream);
}

/**
 * em_utils_selection_set_uidlist:
 * @data: selection data
 * @uri:
 * @uids: 
 * 
 * Sets a "x-uid-list" format selection data.
 *
 * FIXME: be nice if this could take a folder argument rather than uri
 **/
void
em_utils_selection_set_uidlist(GtkSelectionData *data, const char *uri, GPtrArray *uids)
{
    GByteArray *array = g_byte_array_new();
    int i;

    /* format: "uri\0uid1\0uid2\0uid3\0...\0uidn\0" */
    
    g_byte_array_append(array, uri, strlen(uri)+1);

    for (i=0; i<uids->len; i++)
        g_byte_array_append(array, uids->pdata[i], strlen(uids->pdata[i])+1);
        
    gtk_selection_data_set(data, data->target, 8, array->data, array->len);
    g_byte_array_free(array, TRUE);
}

/**
 * em_utils_selection_get_uidlist:
 * @data: selection data
 * @urip: Pointer to uri string, to be free'd by caller
 * @uidsp: Pointer to an array of uid's.
 * 
 * Convert an x-uid-list type to a uri and a uid list.
 * 
 * Return value: The number of uid's found.  If 0, then @urip and
 * @uidsp will be empty.
 **/
int
em_utils_selection_get_uidlist(GtkSelectionData *data, char **urip, GPtrArray **uidsp)
{
    /* format: "uri\0uid1\0uid2\0uid3\0...\0uidn" */
    char *inptr, *inend;
    GPtrArray *uids;
    int res;

    *urip = NULL;
    *uidsp = NULL;

    if (data == NULL || data->data == NULL || data->length == -1)
        return 0;
    
    uids = g_ptr_array_new();

    inptr = data->data;
    inend = data->data + data->length;
    while (inptr < inend) {
        char *start = inptr;

        while (inptr < inend && *inptr)
            inptr++;

        if (start > (char *)data->data)
            g_ptr_array_add(uids, g_strndup(start, inptr-start));

        inptr++;
    }

    if (uids->len == 0) {
        g_ptr_array_free(uids, TRUE);
        res = 0;
    } else {
        *urip = g_strdup(data->data);
        *uidsp = uids;
        res = uids->len;
    }

    return res;
}

/**
 * em_utils_selection_set_urilist:
 * @data: 
 * @folder: 
 * @uids: 
 * 
 * Set the selection data @data to a uri which points to a file, which is
 * a berkely mailbox format mailbox.  The file is automatically cleaned
 * up when the application quits.
 **/
void
em_utils_selection_set_urilist(GtkSelectionData *data, CamelFolder *folder, GPtrArray *uids)
{
    const char *tmpdir;
    CamelStream *fstream;
    char *uri, *p;
    int fd;

    tmpdir = e_mkdtemp("drag-n-drop-XXXXXX");
    if (tmpdir == NULL)
        return;

    /* FIXME: this used to save a single message with the subject
       as the filename but it was unsafe, and makes this messier,
       the pain */
    
    p = uri = g_alloca (strlen (tmpdir) + 16);
    p += sprintf (uri, "file:///%s/mbox", tmpdir);
    
    fd = open(uri + 7, O_WRONLY | O_CREAT | O_EXCL, 0666);
    if (fd == -1)
        return;
    
    fstream = camel_stream_fs_new_with_fd(fd);
    if (fstream) {
        /* terminate with \r\n to be compliant with the spec */
        strcpy (p, "\r\n");
        
        if (em_utils_write_messages_to_stream(folder, uids, fstream) == 0)
            gtk_selection_data_set(data, data->target, 8, uri, strlen(uri));

        camel_object_unref(fstream);
    }
}

static void
emu_save_part_done(CamelMimePart *part, char *name, int done, void *data)
{
    ((int *)data)[0] = done;
}

/**
 * em_utils_temp_save_part:
 * @parent: 
 * @part: 
 * 
 * Save a part's content to a temporary file, and return the
 * filename.
 * 
 * Return value: NULL if anything failed.
 **/
char *
em_utils_temp_save_part(GtkWidget *parent, CamelMimePart *part)
{
    const char *tmpdir, *filename;
    char *path, *mfilename = NULL;
    int done;

    tmpdir = e_mkdtemp("evolution-tmp-XXXXXX");
    if (tmpdir == NULL) {
        e_notice(parent, GTK_MESSAGE_ERROR,
             _("Could not create temporary directory: %s"),
             g_strerror (errno));

        return NULL;
    }

    filename = camel_mime_part_get_filename (part);
    if (filename == NULL) {
        /* This is the default filename used for temporary file creation */
        filename = _("Unknown");
    } else {
        mfilename = g_strdup(filename);
        e_filename_make_safe(mfilename);
        filename = mfilename;
    }

    path = g_build_filename(tmpdir, filename, NULL);
    g_free(mfilename);

    /* FIXME: This doesn't handle default charsets */
    mail_msg_wait(mail_save_part(part, path, emu_save_part_done, &done));

    if (!done) {
        /* mail_save_part should popup an error box automagically */
        g_free(path);
        path = NULL;
    }

    return path;
}

extern CamelFolder *drafts_folder, *sent_folder, *outbox_folder;

/**
 * em_utils_folder_is_drafts:
 * @folder: folder
 * @uri: uri for this folder, if known
 *
 * Decides if @folder is a Drafts folder.
 * 
 * Returns %TRUE if this is a Drafts folder or %FALSE otherwise.
 **/
gboolean
em_utils_folder_is_drafts(CamelFolder *folder, const char *uri)
{
    EAccountList *accounts;
    EAccount *account;
    EIterator *iter;
    int is = FALSE;

    if (folder == drafts_folder)
        return TRUE;

    if (uri == NULL)
        return FALSE;

    accounts = mail_config_get_accounts();
    iter = e_list_get_iterator((EList *)accounts);
    while (e_iterator_is_valid(iter)) {
        account = (EAccount *)e_iterator_get(iter);
        if (account->drafts_folder_uri &&
            camel_store_uri_cmp(folder->parent_store, account->drafts_folder_uri, uri)) {
            is = TRUE;
            break;
        }
        
        e_iterator_next(iter);
    }
    
    g_object_unref(iter);
    
    return is;
}

/**
 * em_utils_folder_is_sent:
 * @folder: folder
 * @uri: uri for this folder, if known
 *
 * Decides if @folder is a Sent folder
 * 
 * Returns %TRUE if this is a Sent folder or %FALSE otherwise.
 **/
gboolean
em_utils_folder_is_sent(CamelFolder *folder, const char *uri)
{
    EAccountList *accounts;
    EAccount *account;
    EIterator *iter;
    int is = FALSE;

    if (folder == sent_folder)
        return TRUE;

    if (uri == NULL)
        return FALSE;

    accounts = mail_config_get_accounts();
    iter = e_list_get_iterator((EList *)accounts);
    while (e_iterator_is_valid(iter)) {
        account = (EAccount *)e_iterator_get(iter);
        if (account->sent_folder_uri &&
            camel_store_uri_cmp(folder->parent_store, account->sent_folder_uri, uri)) {
            is = TRUE;
            break;
        }
        
        e_iterator_next(iter);
    }
    
    g_object_unref(iter);
    
    return is;
}

/**
 * em_utils_folder_is_outbox:
 * @folder: folder
 * @uri: uri for this folder, if known
 *
 * Decides if @folder is an Outbox folder
 * 
 * Returns %TRUE if this is an Outbox folder or %FALSE otherwise.
 **/
gboolean
em_utils_folder_is_outbox(CamelFolder *folder, const char *uri)
{
    /* <Highlander>There can be only one.</Highlander> */
    return folder == outbox_folder;
}

/**
 * em_utils_adjustment_page:
 * @adj: 
 * @down: 
 * 
 * Move an adjustment up/down forward/back one page.
 **/
void
em_utils_adjustment_page(GtkAdjustment *adj, gboolean down)
{
    float page_size = adj->page_size - adj->step_increment;

    if (down) {
        if (adj->value < adj->upper - adj->page_size - page_size)
            adj->value += page_size;
        else if (adj->upper >= adj->page_size)
            adj->value = adj->upper - adj->page_size;
        else
            adj->value = adj->lower;
    } else {
        if (adj->value > adj->lower + page_size)
            adj->value -= page_size;
        else
            adj->value = adj->lower;
    }

    gtk_adjustment_value_changed(adj);
}

/* ********************************************************************** */
static char *emu_proxy_uri;

static void
emu_set_proxy(GConfClient *client)
{
    char *server;
    int port;

    if (!gconf_client_get_bool(client, "/system/http_proxy/use_http_proxy", NULL)) {
        g_free(emu_proxy_uri);
        emu_proxy_uri = NULL;

        return;
    }

    /* TODO: Should lock ... */

    server = gconf_client_get_string(client, "/system/http_proxy/host", NULL);
    port = gconf_client_get_int(client, "/system/http_proxy/port", NULL);

    if (server && server[0]) {
        g_free(emu_proxy_uri);

        if (gconf_client_get_bool(client, "/system/http_proxy/use_authentication", NULL)) {
            char *user = gconf_client_get_string(client, "/system/http_proxy/authentication_user", NULL);
            char *pass = gconf_client_get_string(client, "/system/http_proxy/authentication_password", NULL);

            emu_proxy_uri = g_strdup_printf("http://%s:%s@%s:%d", user, pass, server, port);
            g_free(user);
            g_free(pass);
        } else {
            emu_proxy_uri = g_strdup_printf("http://%s:%d", server, port);
        }
    }

    g_free(server);
}

static void
emu_proxy_changed(GConfClient *client, guint32 cnxn_id, GConfEntry *entry, gpointer user_data)
{
    emu_set_proxy(client);
}

/**
 * em_utils_get_proxy_uri:
 * 
 * Get the system proxy uri.
 * 
 * Return value: Must be freed when finished with.
 **/
char *
em_utils_get_proxy_uri(void)
{
    static int init;

    if (!init) {
        GConfClient *client = gconf_client_get_default();

        gconf_client_add_dir(client, "/system/http_proxy", GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);
        gconf_client_notify_add(client, "/system/http_proxy", emu_proxy_changed, NULL, NULL, NULL);
        emu_set_proxy(client);
        g_object_unref(client);
        init = TRUE;
    }

    return g_strdup(emu_proxy_uri);
}

/**
 * em_utils_part_to_html:
 * @part:
 *
 * Converts a mime part's contents into html text.  If @credits is given,
 * then it will be used as an attribution string, and the
 * content will be cited.  Otherwise no citation or attribution
 * will be performed.
 * 
 * Return Value: The part in displayable html format.
 **/
char *
em_utils_part_to_html(CamelMimePart *part)
{
    EMFormatQuote *emfq;
    CamelStreamMem *mem;
    GByteArray *buf;
    char *text;
    
    buf = g_byte_array_new ();
    mem = (CamelStreamMem *) camel_stream_mem_new ();
    camel_stream_mem_set_byte_array (mem, buf);
    
    emfq = em_format_quote_new(NULL, (CamelStream *)mem, 0);
    em_format_part((EMFormat *) emfq, (CamelStream *) mem, part);
    g_object_unref (emfq);
    
    camel_stream_write ((CamelStream *) mem, "", 1);
    camel_object_unref (mem);
    
    text = buf->data;
    g_byte_array_free (buf, FALSE);
    
    return text;
}

/**
 * em_utils_message_to_html:
 * @message: 
 * @credits: 
 * @flags: EMFormatQuote flags
 *
 * Convert a message to html, quoting if the @credits attribution
 * string is given.
 * 
 * Return value: The html version.
 **/
char *
em_utils_message_to_html(CamelMimeMessage *message, const char *credits, guint32 flags)
{
    EMFormatQuote *emfq;
    CamelStreamMem *mem;
    GByteArray *buf;
    char *text;
    
    buf = g_byte_array_new ();
    mem = (CamelStreamMem *) camel_stream_mem_new ();
    camel_stream_mem_set_byte_array (mem, buf);
    
    emfq = em_format_quote_new(credits, (CamelStream *)mem, flags);
    em_format_format((EMFormat *)emfq, (CamelMedium *)message);
    g_object_unref (emfq);
    
    camel_stream_write ((CamelStream *) mem, "", 1);
    camel_object_unref (mem);
    
    text = buf->data;
    g_byte_array_free (buf, FALSE);
    
    return text;
}

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

/**
 * em_utils_expunge_folder:
 * @parent: parent window
 * @folder: folder to expunge
 *
 * Expunges @folder.
 **/
void
em_utils_expunge_folder (GtkWidget *parent, CamelFolder *folder)
{
    char *name;

    camel_object_get(folder, NULL, CAMEL_OBJECT_DESCRIPTION, &name, 0);

    if (!em_utils_prompt_user(parent, GTK_RESPONSE_NO, 
                  "/apps/evolution/mail/prompts/expunge",
                  _("This operation will permanently remove all deleted messages "
                    "in the folder `%s'. If you continue, you "
                    "will not be able to recover these messages.\n"
                    "\nReally erase these messages?"), name))
        return;
    
    mail_expunge_folder(folder, NULL, NULL);
}

/**
 * em_utils_empty_trash:
 * @parent: parent window
 *
 * Empties all Trash folders.
 **/
void
em_utils_empty_trash (GtkWidget *parent)
{
    extern CamelSession *session;
    CamelProvider *provider;
    EAccountList *accounts;
    EAccount *account;
    EIterator *iter;
    CamelException ex;

    if (!em_utils_prompt_user(parent, GTK_RESPONSE_NO, "/apps/evolution/mail/prompts/empty_trash",
                  _("This operation will permanently remove all deleted messages "
                    "in all folders. If you continue, you will not be able to "
                    "recover these messages.\n"
                    "\nReally erase these messages?")))
        return;
    
    camel_exception_init (&ex);
    
    /* expunge all remote stores */
    accounts = mail_config_get_accounts ();
    iter = e_list_get_iterator ((EList *) accounts);
    while (e_iterator_is_valid (iter)) {
        account = (EAccount *) e_iterator_get (iter);
        
        /* make sure this is a valid source */
        if (account->enabled && account->source->url) {
            provider = camel_session_get_provider (session, account->source->url, &ex);
            if (provider) {
                /* make sure this store is a remote store */
                if (provider->flags & CAMEL_PROVIDER_IS_STORAGE &&
                    provider->flags & CAMEL_PROVIDER_IS_REMOTE) {
                    mail_empty_trash (account, NULL, NULL);
                }
            }
            
            /* clear the exception for the next round */
            camel_exception_clear (&ex);
        }
        
        e_iterator_next (iter);
    }
    
    g_object_unref (iter);
    
    /* Now empty the local trash folder */
    mail_empty_trash (NULL, NULL, NULL);
}