aboutsummaryrefslogtreecommitdiffstats
path: root/mail/mail-folder-cache.c
blob: 5d5f81e2a9e05c8066b70acf1fbacd7f2d03b0bb (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
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
 * 
 * Authors: Peter Williams <peterw@ximian.com>
 *      Michael Zucchi <notzed@ximian.com>
 *
 * Copyright 2000,2001 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 Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef G_LOG_DOMAIN
#undef G_LOG_DOMAIN
#endif
#define G_LOG_DOMAIN "folder tree"

#include <pthread.h>

#include <bonobo/bonobo-exception.h>
#include <camel/camel-store.h>
#include <camel/camel-folder.h>
#include <camel/camel-vtrash-folder.h>

#include "mail-mt.h"
#include "mail-folder-cache.h"
#include "mail-ops.h"
#include "mail-vfolder.h"

#define d(x) 

/* note that many things are effectively serialised by having them run in
   the main loop thread which they need to do because of corba/gtk calls */
#define LOCK(x) pthread_mutex_lock(&x)
#define UNLOCK(x) pthread_mutex_unlock(&x)

static pthread_mutex_t info_lock = PTHREAD_MUTEX_INITIALIZER;

struct _folder_info {
    struct _store_info *store_info; /* 'parent' link */

    char *path;     /* shell path */
    char *name;     /* shell display name? */
    char *full_name;    /* full name of folder/folderinfo */
    char *uri;      /* uri of folder */

    CamelFolder *folder;    /* if known */
};

struct _store_info {
    GHashTable *folders;    /* by full_name */
    GHashTable *folders_uri; /* by uri */

    CamelStore *store;  /* the store for these folders */

    /* only 1 should be set */
    EvolutionStorage *storage;
    GNOME_Evolution_Storage corba_storage;
};

static GHashTable *stores;

/* This is how unread counts work (and don't work):
 *
 * camel_folder_unread_message_count() only gives a correct answer if
 * the store is paying attention to the folder. (Some stores always
 * pay attention to all folders, but IMAP can only pay attention to
 * one folder at a time.) But it doesn't have any way to know when
 * it's lying, so it's only safe to call it when you know for sure
 * that the store is paying attention to the folder, such as when it's
 * just been created, or you get a folder_changed or message_changed
 * signal on it.
 *
 * camel_store_get_folder_info() always gives correct answers for the
 * folders it checks, but it can also return -1 for a folder, meaning
 * it didn't check, and so you should stick with your previous answer.
 *
 * update_1folder is called from three places: with info != NULL when
 * the folder is created (or get_folder_info), with info == NULL when
 * a folder changed event is emitted.
 *
 * So if info is NULL, camel_folder_unread_message_count is correct,
 * and if it's not NULL and its unread_message_count isn't -1, then
 * it's correct.  */

static void
update_1folder(struct _folder_info *mfi, CamelFolderInfo *info)
{
    struct _store_info *si;
    CamelFolder *folder;
    int unread = -1;
    CORBA_Environment ev;
    extern CamelFolder *outbox_folder;

    si  = mfi->store_info;

    LOCK(info_lock);
    folder = mfi->folder;
    if (folder) {
        if (CAMEL_IS_VTRASH_FOLDER (folder) || folder == outbox_folder) {
            unread = camel_folder_get_message_count(folder);
        } else {
            if (info)
                unread = info->unread_message_count;
            else
                unread = camel_folder_get_unread_message_count (folder);
        }
    } else if (info)
        unread = info->unread_message_count;
    UNLOCK(info_lock);
    if (unread == -1)
        return;

    if (si->storage == NULL) {
        d(printf("Updating existing (local) folder: %s (%d unread) folder=%p\n", mfi->path, unread, folder));
        CORBA_exception_init(&ev);
        GNOME_Evolution_Storage_updateFolder(si->corba_storage, mfi->path, mfi->name, unread, &ev);
        CORBA_exception_free(&ev);
    } else {
        d(printf("Updating existing folder: %s (%d unread)\n", mfi->path, unread));
        evolution_storage_update_folder(si->storage, mfi->path, mfi->name, unread);
    }
}

static void
setup_folder(CamelFolderInfo *fi, struct _store_info *si)
{
    struct _folder_info *mfi;
    char *type;
    CamelStore *store;

    LOCK(info_lock);
    mfi = g_hash_table_lookup(si->folders, fi->full_name);
    if (mfi) {
        UNLOCK(info_lock);
        update_1folder(mfi, fi);
    } else {
        /* always 'add it', but only 'add it' to non-local stores */
        d(printf("Adding new folder: %s (%s) %d unread\n", fi->path, fi->url, fi->unread_message_count));
        mfi = g_malloc0(sizeof(*mfi));
        mfi->path = g_strdup(fi->path);
        mfi->name = g_strdup(fi->name);
        mfi->full_name = g_strdup(fi->full_name);
        mfi->uri = g_strdup(fi->url);
        mfi->store_info = si;
        g_hash_table_insert(si->folders, mfi->full_name, mfi);
        g_hash_table_insert(si->folders_uri, mfi->uri, mfi);
        store = si->store;
        camel_object_ref((CamelObject *)store);
        UNLOCK(info_lock);

        if (si->storage != NULL) {
            int unread = (fi->unread_message_count==-1)?0:fi->unread_message_count;

            type = (strncmp(fi->url, "vtrash:", 7)==0)?"vtrash":"mail";
            evolution_storage_new_folder(si->storage, mfi->path, mfi->name, type,
                             fi->url, mfi->name, unread);
        }

        if (strstr(fi->url, ";noselect") == NULL)
            mail_vfolder_add_uri(store, fi->url);

        camel_object_unref((CamelObject *)store);
    }
}

static void
real_folder_changed(CamelFolder *folder, void *event_data, void *data)
{
    struct _folder_info *mfi = data;

    update_1folder(mfi, NULL);
}

static void
folder_changed(CamelObject *o, gpointer event_data, gpointer user_data)
{
    struct _folder_info *mfi = user_data;

    if (mfi->folder != CAMEL_FOLDER(o))
        return;

    d(printf("Fodler changed!\n"));
    mail_msg_wait(mail_proxy_event((CamelObjectEventHookFunc)real_folder_changed, o, NULL, mfi));
}

static void
folder_finalised(CamelObject *o, gpointer event_data, gpointer user_data)
{
    struct _folder_info *mfi = user_data;

    d(printf("Folder finalised!\n"));
    mfi->folder = NULL;
}

static void
real_note_folder(CamelFolder *folder, void *event_data, void *data)
{
    CamelStore *store = folder->parent_store;
    struct _store_info *si;
    struct _folder_info *mfi;

    LOCK(info_lock);
    si = g_hash_table_lookup(stores, store);
    UNLOCK(info_lock);
    if (si == NULL) {
        g_warning("Adding a folder `%s' to a store %p which hasn't been added yet?\n", folder->full_name, store);
        camel_object_unref((CamelObject *)folder);
        return;
    }

    LOCK(info_lock);
    mfi = g_hash_table_lookup(si->folders, folder->full_name);
    UNLOCK(info_lock);

    if (mfi == NULL) {
        g_warning("Adding a folder `%s' that I dont know about yet?", folder->full_name);
        camel_object_unref((CamelObject *)folder);
        return;
    }

    /* dont do anything if we already have this */
    if (mfi->folder == folder)
        return;

    mfi->folder = folder;
    update_1folder(mfi, NULL);

    camel_object_hook_event((CamelObject *)folder, "folder_changed", folder_changed, mfi);
    camel_object_hook_event((CamelObject *)folder, "message_changed", folder_changed, mfi);
    camel_object_hook_event((CamelObject *)folder, "finalize", folder_finalised, mfi);

    camel_object_unref((CamelObject *)folder);
}

void mail_note_folder(CamelFolder *folder)
{
    if (stores == NULL) {
        g_warning("Adding a folder `%s' to a store which hasn't been added yet?\n", folder->full_name);
        return;
    }

    camel_object_ref((CamelObject *)folder);
    mail_proxy_event((CamelObjectEventHookFunc)real_note_folder, (CamelObject *)folder, NULL, NULL);
}

static void
real_folder_created(CamelStore *store, void *event_data, CamelFolderInfo *fi)
{
    struct _store_info *si;

    (printf("real_folder_created: %s (%s)\n", fi->full_name, fi->url));

    LOCK(info_lock);
    si = g_hash_table_lookup(stores, store);
    UNLOCK(info_lock);
    if (si)
        setup_folder(fi, si);
    else
        /* leaks, so what */
        g_warning("real_folder_created: can't find store: %s\n",
              camel_url_to_string(((CamelService *)store)->url, 0));
}

static void
store_folder_created(CamelObject *o, void *event_data, void *data)
{
    CamelFolderInfo *info = event_data;

    d(printf("folder added: %s\n", info->full_name));
    d(printf("uri = '%s'\n", info->url));

    /* dont need to copy info since we're waiting for it to complete */
    mail_msg_wait(mail_proxy_event((CamelObjectEventHookFunc)real_folder_created, o, NULL, info));
}

static void
real_folder_deleted(CamelStore *store, void *event_data, CamelFolderInfo *fi)
{
    (printf("real_folder_deleted: %s (%s)\n", fi->full_name, fi->url));
    
    if (strstr(fi->url, ";noselect") == NULL)
        mail_vfolder_remove_uri(store, fi->url);
}

static void
store_folder_deleted(CamelObject *o, void *event_data, void *data)
{
    CamelStore *store = (CamelStore *)o;
    CamelFolderInfo *info = event_data;

    store = store;
    info = info;

    /* should really remove it? */
    d(printf("folder deleted: %s\n", info->full_name));

    mail_msg_wait(mail_proxy_event((CamelObjectEventHookFunc)real_folder_deleted, o, NULL, info));
}

static void
free_folder_info(char *path, struct _folder_info *info, void *data)
{
    g_free(info->path);
    g_free(info->name);
    g_free(info->full_name);
    g_free(info->uri);
}

static void
store_finalised(CamelObject *o, void *event_data, void *data)
{
    CamelStore *store = (CamelStore *)o;
    struct _store_info *si;

    d(printf("store finalised!!\n"));
    LOCK(info_lock);
    si = g_hash_table_lookup(stores, store);
    if (si) {
        g_hash_table_remove(stores, store);
        g_hash_table_foreach(si->folders, (GHFunc)free_folder_info, NULL);
        g_hash_table_destroy(si->folders);
        g_free(si);
    }
    UNLOCK(info_lock);
}

static void
create_folders(CamelFolderInfo *fi, struct _store_info *si)
{
    printf("Setup new folder: %s\n", fi->url);

    setup_folder(fi, si);

    if (fi->child)
        create_folders(fi->child, si);
    if (fi->sibling)
        create_folders(fi->sibling, si);
}

struct _update_data {
    struct _store_info *si;
    void (*done)(CamelStore *store, CamelFolderInfo *info, void *data);
    void *data;
};

static void
update_folders(CamelStore *store, CamelFolderInfo *info, void *data)
{
    struct _update_data *ud = data;

    if (info) {
        if (ud->si->storage)
            gtk_object_set_data (GTK_OBJECT (ud->si->storage), "connected", GINT_TO_POINTER (TRUE));
        create_folders(info, ud->si);
    }
    if (ud->done)
        ud->done(store, info, ud->data);
    g_free(ud);
}

void
mail_note_store(CamelStore *store, EvolutionStorage *storage, GNOME_Evolution_Storage corba_storage,
        void (*done)(CamelStore *store, CamelFolderInfo *info, void *data), void *data)
{
    struct _store_info *si;
    struct _update_data *ud;

    g_assert(CAMEL_IS_STORE(store));
    g_assert(pthread_self() == mail_gui_thread);
    g_assert(storage != NULL || corba_storage != CORBA_OBJECT_NIL);

    LOCK(info_lock);

    if (stores == NULL)
        stores = g_hash_table_new(NULL, NULL);

    si = g_hash_table_lookup(stores, store);
    if (si == NULL) {

        d(printf("Noting a new store: %p: %s\n", store, camel_url_to_string(((CamelService *)store)->url, 0)));

        /* FIXME: Need to ref the storages & store or something?? */

        si = g_malloc0(sizeof(*si));
        si->folders = g_hash_table_new(g_str_hash, g_str_equal);
        si->folders_uri = g_hash_table_new(CAMEL_STORE_CLASS(CAMEL_OBJECT_GET_CLASS(store))->hash_folder_name,
                           CAMEL_STORE_CLASS(CAMEL_OBJECT_GET_CLASS(store))->compare_folder_name);
        si->storage = storage;
        si->corba_storage = corba_storage;
        si->store = store;
        g_hash_table_insert(stores, store, si);

        camel_object_hook_event((CamelObject *)store, "folder_created", store_folder_created, NULL);
        camel_object_hook_event((CamelObject *)store, "folder_deleted", store_folder_deleted, NULL);
        camel_object_hook_event((CamelObject *)store, "finalize", store_finalised, NULL);
    }

    UNLOCK(info_lock);

    ud = g_malloc(sizeof(*ud));
    ud->si = si;
    ud->done = done;
    ud->data = data;

    mail_get_folderinfo(store, update_folders, ud);
}

struct _find_info {
    const char *uri;
    struct _folder_info *fi;
};

/* look up on each storeinfo using proper hash function for that stores uri's */
static void storeinfo_find_folder_info(CamelStore *store, struct _store_info *si, struct _find_info *fi)
{
    if (fi->fi == NULL)
        fi->fi = g_hash_table_lookup(si->folders_uri, fi->uri);
}

/* returns TRUE if the uri is available, folderp is set to a
   reffed folder if the folder has also already been opened */
int mail_note_get_folder_from_uri(const char *uri, CamelFolder **folderp)
{
    struct _find_info fi = { uri, NULL };

    if (stores == NULL)
        return FALSE;

    LOCK(info_lock);
    g_hash_table_foreach(stores, (GHFunc)storeinfo_find_folder_info, &fi);
    if (folderp) {
        if (fi.fi && fi.fi->folder) {
            *folderp = fi.fi->folder;
            camel_object_ref((CamelObject *)*folderp);
        } else {
            *folderp = NULL;
        }
    }
    UNLOCK(info_lock);

    return fi.fi != NULL;
}