aboutsummaryrefslogtreecommitdiffstats
path: root/mail/mail-session.c
blob: e946b7e1ed0471144244a4789b5f1e18a62e8d41 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* mail-session.c: handles the session information and resource manipulation */
/*
 *  Copyright 2001 Ximian, Inc. (www.ximian.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */


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

#include <stdlib.h>
#include <string.h>

#include <gtk/gtkdialog.h>
#include <gtk/gtkstock.h>

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

#include <libgnome/gnome-config.h>
#include <libgnome/gnome-sound.h>

#include "camel/camel-filter-driver.h"
#include "filter/filter-context.h"
#include "filter/filter-filter.h"
#include "mail.h"
#include "mail-config.h"
#include "mail-session.h"
#include "mail-tools.h"
#include "mail-mt.h"
#include "mail-ops.h"
#include "e-util/e-passwords.h"
#include "e-util/e-msgport.h"

#define d(x)

CamelSession *session;


#define MAIL_SESSION_TYPE     (mail_session_get_type ())
#define MAIL_SESSION(obj)     (CAMEL_CHECK_CAST((obj), MAIL_SESSION_TYPE, MailSession))
#define MAIL_SESSION_CLASS(k) (CAMEL_CHECK_CLASS_CAST ((k), MAIL_SESSION_TYPE, MailSessionClass))
#define MAIL_IS_SESSION(o)    (CAMEL_CHECK_TYPE((o), MAIL_SESSION_TYPE))

#define MAIL_SESSION_LOCK(s, l) (e_mutex_lock(((MailSession *)s)->l))
#define MAIL_SESSION_UNLOCK(s, l) (e_mutex_unlock(((MailSession *)s)->l))

typedef struct _MailSession {
    CamelSession parent_object;

    gboolean interactive;
    FILE *filter_logfile;

    EMutex *lock;

    MailAsyncEvent *async;

    /* must all be accessed with lock held ! */
    unsigned int timeout_id;/* next camel timneout id */
    EDList timeouts;    /* list of struct _timeout_data's of current or pending removed timeouts */
} MailSession;

typedef struct _MailSessionClass {
    CamelSessionClass parent_class;

} MailSessionClass;

static char *get_password(CamelSession *session, const char *prompt, gboolean reprompt, gboolean secret, CamelService *service, const char *item, CamelException *ex);
static void forget_password(CamelSession *session, CamelService *service, const char *item, CamelException *ex);
static gboolean alert_user(CamelSession *session, CamelSessionAlertType type, const char *prompt, gboolean cancel);
static guint register_timeout(CamelSession *session, guint32 interval, CamelTimeoutCallback cb, gpointer camel_data);
static gboolean remove_timeout(CamelSession *session, guint handle);
static CamelFilterDriver *get_filter_driver(CamelSession *session, const char *type, CamelException *ex);

static void
init (MailSession *session)
{
    session->lock = e_mutex_new(E_MUTEX_REC);
    session->timeout_id = 1; /* first timeout id */
    session->async = mail_async_event_new();
    e_dlist_init(&session->timeouts);
}

static void
finalise (MailSession *session)
{
    mail_async_event_destroy(session->async);
    e_mutex_destroy(session->lock);
}

static void
class_init (MailSessionClass *mail_session_class)
{
    CamelSessionClass *camel_session_class = CAMEL_SESSION_CLASS (mail_session_class);
    
    /* virtual method override */
    camel_session_class->get_password = get_password;
    camel_session_class->forget_password = forget_password;
    camel_session_class->alert_user = alert_user;
    camel_session_class->get_filter_driver = get_filter_driver;
}

static CamelType
mail_session_get_type (void)
{
    static CamelType mail_session_type = CAMEL_INVALID_TYPE;
    
    if (mail_session_type == CAMEL_INVALID_TYPE) {
        mail_session_type = camel_type_register (
            camel_session_get_type (),
            "MailSession",
            sizeof (MailSession),
            sizeof (MailSessionClass),
            (CamelObjectClassInitFunc) class_init,
            NULL,
            (CamelObjectInitFunc) init,
            (CamelObjectFinalizeFunc) finalise);
    }
    
    return mail_session_type;
}


static char *
make_key (CamelService *service, const char *item)
{
    char *key;
    
    if (service)
        key = camel_url_to_string (service->url, CAMEL_URL_HIDE_PASSWORD | CAMEL_URL_HIDE_PARAMS);
    else
        key = g_strdup (item);
    
    return key;
}

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

static GtkDialog *password_dialog = NULL;
static EDList password_list = E_DLIST_INITIALISER(password_list);

struct _pass_msg {
    struct _mail_msg msg;
    
    CamelSession *session;
    const char *prompt;
    gboolean reprompt;
    gboolean secret;
    CamelService *service;
    const char *item;
    CamelException *ex;
    
    char *service_url;
    char *key;
    
    EAccountService *config_service;
    GtkWidget *check;
    GtkWidget *entry;
    char *result;
    int ismain;
};

static void do_get_pass(struct _mail_msg *mm);

static void
pass_activate (GtkEntry *entry, void *data)
{
    if (password_dialog)
        gtk_dialog_response (password_dialog, GTK_RESPONSE_OK);
}

static void
pass_response (GtkDialog *dialog, int button, void *data)
{
    struct _pass_msg *m = data;
    
    switch (button) {
    case GTK_RESPONSE_OK:
    {
        gboolean cache, remember;
        
        m->result = g_strdup (gtk_entry_get_text ((GtkEntry *) m->entry));
        remember = cache = m->check ? gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (m->check)) : FALSE;
        
        if (m->service_url) {
            if (m->config_service) {
                mail_config_service_set_save_passwd (m->config_service, cache);
                
                /* set `cache' to TRUE because people don't want to have to
                   re-enter their passwords for this session even if they told
                   us not to cache their passwords in the dialog...*sigh* */
                cache = TRUE;
            }
        } else {
            /* we can't remember the password if it isn't for an account (pgp?) */
            remember = FALSE;
        }
        
        if (cache) {
            /* cache the password for the session */
            e_passwords_add_password (m->key, m->result);
            
            /* should we remember it between sessions? */
            if (remember)
                e_passwords_remember_password ("Mail", m->key);
        }
        break;
    }
    default:
        camel_exception_set (m->ex, CAMEL_EXCEPTION_USER_CANCEL, _("User canceled operation."));
        break;
    }

    gtk_widget_destroy ((GtkWidget *) dialog);

    password_dialog = NULL;
    e_msgport_reply ((EMsg *)m);
    
    if ((m = (struct _pass_msg *) e_dlist_remhead (&password_list)))
        do_get_pass ((struct _mail_msg *) m);
}

static void
request_password (struct _pass_msg *m)
{
    EAccount *mca = NULL;
    char *title;
    
    /* If we already have a password_dialog up, save this request till later */
    if (!m->ismain && password_dialog) {
        e_dlist_addtail (&password_list, (EDListNode *)m);
        return;
    }
    
    if (m->service_url) {
        if ((mca = mail_config_get_account_by_source_url (m->service_url)))
            m->config_service = mca->source;
        else if ((mca = mail_config_get_account_by_transport_url (m->service_url)))
            m->config_service = mca->transport;
    }
    
    if (mca)
        title = g_strdup_printf (_("Enter Password for %s"), mca->name);
    else
        title = g_strdup (_("Enter Password"));
    
    password_dialog = (GtkDialog *) gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_QUESTION,
                                GTK_BUTTONS_OK_CANCEL, "%s", m->prompt);
    gtk_window_set_title (GTK_WINDOW (password_dialog), title);
    gtk_dialog_set_default_response (password_dialog, GTK_RESPONSE_OK);
    g_free (title);
    
    gtk_container_set_border_width ((GtkContainer *) password_dialog, 6);
    
    m->entry = gtk_entry_new ();
    gtk_entry_set_visibility ((GtkEntry *) m->entry, !m->secret);
    g_signal_connect (m->entry, "activate", G_CALLBACK (pass_activate), password_dialog);
    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (password_dialog)->vbox), m->entry, TRUE, FALSE, 3);
    gtk_widget_show (m->entry);
    
    if (m->reprompt && m->result) {
        gtk_entry_set_text ((GtkEntry *) m->entry, m->result);
        g_free (m->result);
        m->result = NULL;
    }
    
    if (m->service_url == NULL || m->service != NULL) {
        m->check = gtk_check_button_new_with_mnemonic (m->service_url ? _("_Remember this password") :
                                   _("_Remember this password for the remainder of this session"));
        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (m->check),
                          m->config_service ? m->config_service->save_passwd : FALSE);
        gtk_box_pack_start (GTK_BOX (GTK_DIALOG (password_dialog)->vbox), m->check, TRUE, FALSE, 3);
        gtk_widget_show (m->check);
    }
    
    if (m->ismain) {
        pass_response(password_dialog, gtk_dialog_run (password_dialog), m);
    } else {
        g_signal_connect (password_dialog, "response", G_CALLBACK (pass_response), m);
        gtk_widget_show ((GtkWidget *) password_dialog);
    }
}

static void
do_get_pass(struct _mail_msg *mm)
{
    struct _pass_msg *m = (struct _pass_msg *)mm;
    MailSession *mail_session = MAIL_SESSION (m->session);
    
    if (!strcmp (m->item, "popb4smtp_uri")) {
        char *url = camel_url_to_string (m->service->url, 0);
        EAccount *account = mail_config_get_account_by_transport_url (url);
        
        g_free(url);
        if (account)
            m->result = g_strdup(account->source->url);
    } else if (m->key) {
        m->result = e_passwords_get_password ("Mail", m->key);
        if (m->result == NULL || m->reprompt) {
            if (mail_session->interactive) {
                request_password(m);
                return;
            }
        }
    }

    e_msgport_reply((EMsg *)mm);
}

static void
do_free_pass(struct _mail_msg *mm)
{
    struct _pass_msg *m = (struct _pass_msg *)mm;

    g_free(m->service_url);
    g_free(m->key);
}

static struct _mail_msg_op get_pass_op = {
    NULL,
    do_get_pass,
    NULL,
    do_free_pass,
};

static char *
get_password (CamelSession *session, const char *prompt, gboolean reprompt, gboolean secret,
          CamelService *service, const char *item, CamelException *ex)
{
    struct _pass_msg *m, *r;
    EMsgPort *pass_reply;
    char *ret;
    
    /* We setup an async request and send it off, and wait for it to return */
    /* If we're really in main, we dont of course ...
       ... but this shouldn't be allowed because of locking issues */
    pass_reply = e_msgport_new ();
    m = mail_msg_new(&get_pass_op, pass_reply, sizeof(struct _pass_msg));
    m->ismain = pthread_self() == mail_gui_thread;
    m->session = session;
    m->prompt = prompt;
    m->reprompt = reprompt;
    m->secret = secret;
    m->service = service;
    m->item = item;
    m->ex = ex;
    if (service)
        m->service_url = camel_url_to_string (service->url, CAMEL_URL_HIDE_ALL);
    m->key = make_key(service, item);

    if (m->ismain) {
        do_get_pass((struct _mail_msg *)m);
    } else {
        extern EMsgPort *mail_gui_port2;
        
        e_msgport_put(mail_gui_port2, (EMsg *)m);
    }
    
    e_msgport_wait(pass_reply);
    r = (struct _pass_msg *)e_msgport_get(pass_reply);
    g_assert(m == r);

    ret = m->result;
    mail_msg_free(m);
    e_msgport_destroy(pass_reply);
    
    return ret;
}

static void
main_forget_password (CamelSession *session, CamelService *service, const char *item, CamelException *ex)
{
    char *key = make_key (service, item);
    
    e_passwords_forget_password ("Mail", key);
    
    g_free (key);
}

static void
forget_password (CamelSession *session, CamelService *service, const char *item, CamelException *ex)
{
    mail_call_main(MAIL_CALL_p_pppp, (MailMainFunc)main_forget_password,
               session, service, item, ex);
}

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

static GtkDialog *message_dialog;
static EDList message_list = E_DLIST_INITIALISER(message_list);

struct _user_message_msg {
    struct _mail_msg msg;

    CamelSessionAlertType type;
    const char *prompt;

    unsigned int allow_cancel:1;
    unsigned int result:1;
    unsigned int ismain:1;
};

static void do_user_message (struct _mail_msg *mm);

/* clicked, send back the reply */
static void
user_message_response (GtkDialog *dialog, int button, struct _user_message_msg *m)
{
    gtk_widget_destroy ((GtkWidget *) dialog);
    
    message_dialog = NULL;
    
    /* if !allow_cancel, then we've already replied */
    if (m->allow_cancel) {
        m->result = button == GTK_RESPONSE_OK;
        e_msgport_reply((EMsg *)m);
    }
    
    /* check for pendings */
    if ((m = (struct _user_message_msg *)e_dlist_remhead(&message_list)))
        do_user_message((struct _mail_msg *)m);
}

static void
user_message_destroy_notify (struct _user_message_msg *m, GObject *deadbeef)
{
    message_dialog = NULL;
}

static void
do_user_message (struct _mail_msg *mm)
{
    struct _user_message_msg *m = (struct _user_message_msg *)mm;
    GtkMessageType msg_type;
    
    if (!m->ismain && message_dialog != NULL) {
        e_dlist_addtail (&message_list, (EDListNode *)m);
        return;
    }
    
    switch (m->type) {
    case CAMEL_SESSION_ALERT_INFO:
        msg_type = GTK_MESSAGE_INFO;
        break;
    case CAMEL_SESSION_ALERT_WARNING:
        msg_type = GTK_MESSAGE_WARNING;
        break;
    case CAMEL_SESSION_ALERT_ERROR:
        msg_type = GTK_MESSAGE_ERROR;
        break;
    default:
        msg_type = GTK_MESSAGE_INFO;
    }
    
    message_dialog = (GtkDialog *) gtk_message_dialog_new (
        NULL, 0, msg_type,
        m->allow_cancel ? GTK_BUTTONS_OK_CANCEL : GTK_BUTTONS_OK,
        "%s", m->prompt);
    gtk_dialog_set_default_response (message_dialog, m->allow_cancel ? GTK_RESPONSE_CANCEL : GTK_RESPONSE_OK);
    g_object_set ((GObject *) message_dialog, "allow_shrink", TRUE, "allow_grow", TRUE, NULL);
    
    /* We only need to wait for the result if we allow cancel otherwise show but send result back instantly */
    if (m->allow_cancel) {
        if (m->ismain) {
            user_message_response(message_dialog, gtk_dialog_run (message_dialog), m);
        } else {
            g_signal_connect (message_dialog, "response", G_CALLBACK (user_message_response), m);
            gtk_widget_show ((GtkWidget *) message_dialog);
        }
    } else {
        g_signal_connect (message_dialog, "response", G_CALLBACK (gtk_widget_destroy), message_dialog);
        g_object_weak_ref ((GObject *) message_dialog, (GWeakNotify) user_message_destroy_notify, m);
        gtk_widget_show ((GtkWidget *) message_dialog);
        m->result = TRUE;
        e_msgport_reply ((EMsg *)m);
    }
}

static struct _mail_msg_op user_message_op = { NULL, do_user_message, NULL, NULL };

static gboolean
alert_user(CamelSession *session, CamelSessionAlertType type, const char *prompt, gboolean cancel)
{
    MailSession *mail_session = MAIL_SESSION (session);
    struct _user_message_msg *m, *r;
    EMsgPort *user_message_reply;
    gboolean ret;

    if (!mail_session->interactive)
        return FALSE;

    user_message_reply = e_msgport_new ();  
    m = mail_msg_new (&user_message_op, user_message_reply, sizeof (*m));
    m->ismain = pthread_self() == mail_gui_thread;
    m->type = type;
    m->prompt = prompt;
    m->allow_cancel = cancel;

    if (m->ismain)
        do_user_message((struct _mail_msg *)m);
    else {
        extern EMsgPort *mail_gui_port2;

        e_msgport_put(mail_gui_port2, (EMsg *)m);
    }

    e_msgport_wait(user_message_reply);
    r = (struct _user_message_msg *)e_msgport_get(user_message_reply);
    g_assert(m == r);

    ret = m->result;
    mail_msg_free(m);
    e_msgport_destroy(user_message_reply);

    return ret;
}

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

struct _timeout_data {
    struct _timeout_data *next;
    struct _timeout_data *prev;

    CamelSession *session;

    guint32 interval;

    CamelTimeoutCallback cb;
    void *camel_data;

    guint id;       /* the camel 'id' */
    guint timeout_id;   /* the gtk 'id' */

    unsigned int busy:1;        /* on if its currently running */
    unsigned int removed:1;     /* if its been removed since */
};

struct _timeout_msg {
    struct _mail_msg msg;

    CamelSession *session;
    unsigned int id;
    int result;
};

static struct _timeout_data *
find_timeout(EDList *list, unsigned int id)
{
    struct _timeout_data *td, *tn;

    td = (struct _timeout_data *)list->head;
    tn = td->next;
    while (tn) {
        if (td->id == id)
            return td;
        td = tn;
        tn = tn->next;
    }

    return NULL;
}

static void
timeout_timeout (struct _mail_msg *mm)
{
    struct _timeout_msg *m = (struct _timeout_msg *)mm;
    MailSession *ms = (MailSession *)m->session;
    struct _timeout_data *td;

    MAIL_SESSION_LOCK(ms, lock);
    td = find_timeout(&ms->timeouts, m->id);
    if (td && !td->removed) {
        if (td->busy) {
            g_warning("Timeout event dropped, still busy with last one");
        } else {
            td->busy = TRUE;
            m->result = td->cb(td->camel_data);
            td->busy = FALSE;
            td->removed = !m->result;
        }
    }
    MAIL_SESSION_UNLOCK(ms, lock);
}

static void
timeout_done (struct _mail_msg *mm)
{
    struct _timeout_msg *m = (struct _timeout_msg *) mm;
    MailSession *ms = (MailSession *) m->session;
    struct _timeout_data *td;
    
    if (!m->result) {
        MAIL_SESSION_LOCK(ms, lock);
        td = find_timeout (&ms->timeouts, m->id);
        if (td) {
            e_dlist_remove ((EDListNode *) td);
            if (td->timeout_id)
                gtk_timeout_remove (td->timeout_id);
            g_free (td);
        }
        MAIL_SESSION_UNLOCK(ms, lock);
    }
}

static void
timeout_free (struct _mail_msg *mm)
{
    struct _timeout_msg *m = (struct _timeout_msg *)mm;
    
    camel_object_unref (m->session);
}

static struct _mail_msg_op timeout_op = {
    NULL,
    timeout_timeout,
    timeout_done,
    timeout_free,
};

static gboolean 
camel_timeout (gpointer data)
{
    struct _timeout_data *td = data;
    struct _timeout_msg *m;
    
    /* stop if we are removed pending */
    if (td->removed)
        return FALSE;
    
    m = mail_msg_new (&timeout_op, NULL, sizeof (*m));
    
    m->session = td->session;
    camel_object_ref (td->session);
    m->id = td->id;
    
    e_thread_put (mail_thread_queued, (EMsg *)m);
    
    return TRUE;
}

static void
main_register_timeout (CamelSession *session, void *event_data, void *data)
{
    MailSession *ms = (MailSession *)session;
    unsigned int handle = GPOINTER_TO_UINT(event_data);
    struct _timeout_data *td;
    
    MAIL_SESSION_LOCK(session, lock);
    td = find_timeout (&ms->timeouts, handle);
    if (td) {
        if (td->removed) {
            e_dlist_remove ((EDListNode *) td);
            if (td->timeout_id)
                gtk_timeout_remove (td->timeout_id);
            g_free (td);
        } else {
            td->timeout_id = gtk_timeout_add (td->interval, camel_timeout, td);
        }
    }
    MAIL_SESSION_UNLOCK(session, lock);
    
    camel_object_unref (ms);
}

static guint
register_timeout (CamelSession *session, guint32 interval, CamelTimeoutCallback cb, gpointer camel_data)
{
    struct _timeout_data *td;
    MailSession *ms = (MailSession *) session;
    guint ret;
    
    MAIL_SESSION_LOCK(session, lock);
    
    ret = ms->timeout_id;
    ms->timeout_id++;
    
    /* just debugging, the timeout code now ignores excessive events anyway */
    if (interval < 100)
        g_warning ("Timeout requested %d is small, may cause performance problems", interval);
    
    td = g_malloc (sizeof (*td));
    td->cb = cb;
    td->camel_data = camel_data;
    td->interval = interval;
    td->id = ret;
    td->session = session;
    td->removed = FALSE;
    td->busy = FALSE;
    e_dlist_addhead (&ms->timeouts, (EDListNode *) td);
    
    MAIL_SESSION_UNLOCK(session, lock);
    
    camel_object_ref (ms);
    mail_async_event_emit (ms->async, MAIL_ASYNC_GUI, (MailAsyncFunc) main_register_timeout,
                   (CamelObject *) session, GUINT_TO_POINTER(ret), NULL);

    return ret;
}

static void
main_remove_timeout (CamelSession *session, void *event_data, void *data)
{
    MailSession *ms = (MailSession *) session;
    unsigned int handle = GPOINTER_TO_UINT(event_data);
    struct _timeout_data *td;
    
    MAIL_SESSION_LOCK(session, lock);
    td = find_timeout (&ms->timeouts, handle);
    if (td) {
        e_dlist_remove ((EDListNode *) td);
        if (td->timeout_id)
            gtk_timeout_remove (td->timeout_id);
        g_free (td);
    }
    MAIL_SESSION_UNLOCK(session, lock);
    
    camel_object_unref (ms);
}

static gboolean
remove_timeout (CamelSession *session, guint handle)
{
    MailSession *ms = (MailSession *)session;
    struct _timeout_data *td;
    int remove = FALSE;
    
    MAIL_SESSION_LOCK(session, lock);
    td = find_timeout (&ms->timeouts, handle);
    if (td && !td->removed) {
        td->removed = TRUE;
        remove = TRUE;
    }
    MAIL_SESSION_UNLOCK(session, lock);
    
    if (remove) {
        camel_object_ref (ms);
        mail_async_event_emit (ms->async, MAIL_ASYNC_GUI, (MailAsyncFunc) main_remove_timeout,
                       (CamelObject *) session, GUINT_TO_POINTER(handle), NULL);
    } else
        g_warning ("Removing a timeout i dont know about (or twice): %d", handle);

    return TRUE;
}

static CamelFolder *
get_folder (CamelFilterDriver *d, const char *uri, void *data, CamelException *ex)
{
    return mail_tool_uri_to_folder (uri, 0, ex);
}


static void
main_play_sound (CamelFilterDriver *driver, const char *filename, gpointer user_data)
{
    if (filename && *filename)
        gnome_sound_play (filename);
    else
        gdk_beep ();
    
    g_free (filename);
    camel_object_unref (session);
}

static void
session_play_sound (CamelFilterDriver *driver, const char *filename, gpointer user_data)
{
    MailSession *ms = (MailSession *) session;
    
    camel_object_ref (session);
    
    mail_async_event_emit (ms->async, MAIL_ASYNC_GUI, (MailAsyncFunc) main_play_sound,
                   driver, g_strdup (filename), user_data);
}

static void
main_system_beep (CamelFilterDriver *driver, gpointer user_data)
{
    gdk_beep ();
}

static void
session_system_beep (CamelFilterDriver *driver, gpointer user_data)
{
    MailSession *ms = (MailSession *) session;
    
    camel_object_ref (session);
    
    mail_async_event_emit (ms->async, MAIL_ASYNC_GUI, (MailAsyncFunc) main_system_beep,
                   driver, user_data, NULL);
}

static CamelFilterDriver *
main_get_filter_driver (CamelSession *session, const char *type, CamelException *ex)
{
    CamelFilterDriver *driver;
    GString *fsearch, *faction;
    FilterRule *rule = NULL;
    char *user, *system;
    GConfClient *gconf;
    RuleContext *fc;
    long notify;
    
    gconf = mail_config_get_gconf_client ();
    
    user = g_strdup_printf ("%s/filters.xml", evolution_dir);
    system = EVOLUTION_PRIVDATADIR "/filtertypes.xml";
    fc = (RuleContext *) filter_context_new ();
    rule_context_load (fc, system, user);
    g_free (user);
    
    driver = camel_filter_driver_new (session);
    camel_filter_driver_set_folder_func (driver, get_folder, NULL);
    
    if (gconf_client_get_bool (gconf, "/apps/evolution/mail/filters/log", NULL)) {
        MailSession *ms = (MailSession *) session;
        
        if (ms->filter_logfile == NULL) {
            char *filename;
            
            filename = gconf_client_get_string (gconf, "/apps/evolution/mail/filters/logfile", NULL);
            if (filename) {
                ms->filter_logfile = fopen (filename, "a+");
                g_free (filename);
            }
        }
        
        if (ms->filter_logfile)
            camel_filter_driver_set_logfile (driver, ms->filter_logfile);
    }
    
    camel_filter_driver_set_shell_func (driver, mail_execute_shell_command, NULL);
    camel_filter_driver_set_play_sound_func (driver, session_play_sound, NULL);
    camel_filter_driver_set_system_beep_func (driver, session_system_beep, NULL);
    
    fsearch = g_string_new ("");
    faction = g_string_new ("");
    
    /* add the new-mail notification rule first to be sure that it gets invoked */
    
    /* FIXME: we need a way to distinguish between filtering new
           mail and re-filtering a folder because both use the
           "incoming" filter type */
    notify = gconf_client_get_int (gconf, "/apps/evolution/mail/notify/type", NULL);
    if (notify != MAIL_CONFIG_NOTIFY_NOT && !strcmp (type, "incoming")) {
        char *filename;
        
        g_string_truncate (faction, 0);
        
        g_string_append (faction, "(only-once \"new-mail-notification\" ");
        
        switch (notify) {
        case MAIL_CONFIG_NOTIFY_PLAY_SOUND:
            filename = gconf_client_get_string (gconf, "/apps/evolution/mail/notify/sound", NULL);
            if (filename) {
                g_string_append_printf (faction, "\"(play-sound \\\"%s\\\")\"", filename);
                g_free (filename);
                break;
            }
            /* fall through */
        case MAIL_CONFIG_NOTIFY_BEEP:
            g_string_append (faction, "\"(beep)\"");
            break;
        default:
            break;
        }
        
        g_string_append (faction, ")");
        
        camel_filter_driver_add_rule (driver, "new-mail-notification", "(begin #t)", faction->str);
    }
    
    /* add the user-defined rules next */
    while ((rule = rule_context_next_rule (fc, rule, type))) {
        g_string_truncate (fsearch, 0);
        g_string_truncate (faction, 0);
        
        filter_rule_build_code (rule, fsearch);
        filter_filter_build_action ((FilterFilter *) rule, faction);
        
        camel_filter_driver_add_rule (driver, rule->name, fsearch->str, faction->str);
    }
    
    g_string_free (fsearch, TRUE);
    g_string_free (faction, TRUE);
    
    g_object_unref (fc);
    
    return driver;
}

static CamelFilterDriver *
get_filter_driver (CamelSession *session, const char *type, CamelException *ex)
{
    return (CamelFilterDriver *) mail_call_main (MAIL_CALL_p_ppp, (MailMainFunc) main_get_filter_driver,
                             session, type, ex);
}

char *
mail_session_get_password (const char *url_string)
{
    CamelURL *url;
    char *simple_url;
    char *passwd;
    
    url = camel_url_new (url_string, NULL);
    simple_url = camel_url_to_string (url, CAMEL_URL_HIDE_PASSWORD | CAMEL_URL_HIDE_PARAMS);
    camel_url_free (url);
    
    passwd = e_passwords_get_password ("Mail", simple_url);
    
    g_free (simple_url);
    
    return passwd;
}

void
mail_session_add_password (const char *url_string,
               const char *passwd)
{
    CamelURL *url;
    char *simple_url;
    
    url = camel_url_new (url_string, NULL);
    simple_url = camel_url_to_string (url, CAMEL_URL_HIDE_PASSWORD | CAMEL_URL_HIDE_PARAMS);
    camel_url_free (url);
    
    e_passwords_add_password (simple_url, passwd);
    
    g_free (simple_url);
}

void
mail_session_remember_password (const char *url_string)
{
    CamelURL *url;
    char *simple_url;
    
    url = camel_url_new (url_string, NULL);
    simple_url = camel_url_to_string (url, CAMEL_URL_HIDE_PASSWORD | CAMEL_URL_HIDE_PARAMS);
    camel_url_free (url);
    
    e_passwords_remember_password ("Mail", simple_url);
    
    g_free (simple_url);
}

void
mail_session_forget_password (const char *key)
{
    e_passwords_forget_password ("Mail", key);
}

void
mail_session_init (void)
{
    char *camel_dir;
    
    if (camel_init (evolution_dir, TRUE) != 0)
        exit (0);
    
    session = CAMEL_SESSION (camel_object_new (MAIL_SESSION_TYPE));
    
    camel_dir = g_strdup_printf ("%s/mail", evolution_dir);
    camel_session_construct (session, camel_dir);
    
    /* The shell will tell us to go online. */
    camel_session_set_online ((CamelSession *) session, FALSE);
    
    g_free (camel_dir);
}

gboolean
mail_session_get_interactive (void)
{
    return MAIL_SESSION (session)->interactive;
}

void
mail_session_set_interactive (gboolean interactive)
{
    MAIL_SESSION (session)->interactive = interactive;
    
    if (!interactive) {
        struct _pass_msg *pm;
        struct _user_message_msg *um;
        
        d(printf ("Gone non-interactive, checking for outstanding interactive tasks\n"));
        
        /* clear out pending password requests */
        while ((pm = (struct _pass_msg *) e_dlist_remhead (&password_list))) {
            d(printf ("Flushing password request : %s\n", pm->prompt));
            e_msgport_reply ((EMsg *) pm);
        }
        
        /* destroy the current */
        if (password_dialog) {
            d(printf ("Destroying password dialogue\n"));
            gtk_widget_destroy ((GtkWidget *) password_dialog);
            password_dialog =  NULL;
        }
        
        /* same for pending user messages */
        while ((um = (struct _user_message_msg *) e_dlist_remhead (&message_list))) {
            d(printf ("Flusing message request: %s\n", um->prompt));
            e_msgport_reply((EMsg *) um);
        }
        
        /* and the current */
        if (message_dialog) {
            d(printf("Destroying message dialogue\n"));
            gtk_widget_destroy ((GtkWidget *) message_dialog);
        }
    }
}

void
mail_session_forget_passwords (BonoboUIComponent *uih, void *user_data,
                   const char *path)
{
    e_passwords_forget_passwords ();
}

void
mail_session_flush_filter_log (void)
{
    MailSession *ms = (MailSession *) session;
    
    if (ms->filter_logfile)
        fflush (ms->filter_logfile);
}