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/*
* Mail Notification
* Copyright (C) 2003-2008 Jean-Yves Lefort <jylefort@brutele.be>
*
* 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 3 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
%headertop{
#include <libgnomevfs/gnome-vfs.h>
#include "mn-reentrant-mailbox.h"
%}
%h{
#define MN_VFS_MAILBOX_MAX_BACKEND_TYPES 5
extern GType mn_vfs_mailbox_backend_types[MN_VFS_MAILBOX_MAX_BACKEND_TYPES + 1];
%}
%privateheader{
#include "mn-vfs-mailbox-backend.h"
%}
%{
#include <glib/gi18n.h>
#include "mn-mailbox-private.h"
#include "mn-reentrant-mailbox-private.h"
#if WITH_MBOX
#include "mn-mbox-mailbox-backend.h"
#endif
#if WITH_MOZILLA
#include "mn-mozilla-mailbox-backend.h"
#endif
#if WITH_MH
#include "mn-mh-mailbox-backend.h"
#endif
#if WITH_MAILDIR
#include "mn-maildir-mailbox-backend.h"
#endif
#if WITH_SYLPHEED
#include "mn-sylpheed-mailbox-backend.h"
#endif
#include "mn-vfs-mailbox-backend-private.h"
#include "mn-vfs.h"
#include "mn-stock.h"
#include "mn-conf.h"
#include "mn-util.h"
#include "mn-locked-callback.h"
GType mn_vfs_mailbox_backend_types[MN_VFS_MAILBOX_MAX_BACKEND_TYPES + 1];
typedef struct
{
char *uri;
MNVFSMailboxBackend *owner;
GnomeVFSMonitorType type;
GnomeVFSMonitorCallback callback;
gpointer user_data;
GnomeVFSResult result;
GnomeVFSMonitorHandle *handle;
} Monitor;
%}
class MN:VFS:Mailbox from MN:Reentrant:Mailbox (abstract)
{
public char *uri destroywith g_free;
public GnomeVFSURI *vfs_uri unrefwith gnome_vfs_uri_unref;
private GSList *monitors;
private MNVFSMailboxBackend *backend unrefwith g_object_unref;
private unsigned int update_poll_id;
private GMutex *mutex = {g_mutex_new()} destroywith g_mutex_free;
public void
init_types (void)
{
int i = 0;
#if WITH_MBOX
mn_vfs_mailbox_backend_types[i++] = MN_TYPE_MBOX_MAILBOX_BACKEND;
#endif
#if WITH_MOZILLA
mn_vfs_mailbox_backend_types[i++] = MN_TYPE_MOZILLA_MAILBOX_BACKEND;
#endif
/*
* Claws Mail mailboxes contain both a .sylpheed_mark and a
* .mh_sequences file. List the Sylpheed backend first, in order
* to treat them as Sylpheed mailboxes. This way, the need to use
* rcvstore from procmail is removed.
*/
#if WITH_SYLPHEED
mn_vfs_mailbox_backend_types[i++] = MN_TYPE_SYLPHEED_MAILBOX_BACKEND;
#endif
#if WITH_MH
mn_vfs_mailbox_backend_types[i++] = MN_TYPE_MH_MAILBOX_BACKEND;
#endif
#if WITH_MAILDIR
mn_vfs_mailbox_backend_types[i++] = MN_TYPE_MAILDIR_MAILBOX_BACKEND;
#endif
mn_vfs_mailbox_backend_types[i] = 0;
}
class_init (class)
{
/*
* Most VFS mailboxes will probably be local files, or remote
* files located in the same LAN. We therefore choose a small
* default check delay (1 minute).
*/
MN_MAILBOX_CLASS(class)->default_check_delay = 60 * 1;
}
constructor (self)
{
/* set default poll to the most likely value */
mn_mailbox_set_poll(MN_MAILBOX(self), FALSE);
}
dispose (self)
{
/*
* We are no longer operational after dispose (see unrefwith
* above), so we must remove our monitors.
*/
mn_source_clear(&selfp->update_poll_id);
mn_g_slist_clear_deep_custom(&selfp->monitors, (GFunc) self_monitor_free, NULL);
}
override (MN:Mailbox) void
seal (MNMailbox *mailbox)
{
Self *self = SELF(mailbox);
PARENT_HANDLER(mailbox);
if (self->uri)
{
self->vfs_uri = gnome_vfs_uri_new(self->uri);
if (! mailbox->stock_id && self->vfs_uri && ! gnome_vfs_uri_is_local(self->vfs_uri))
mn_mailbox_set_stock_id(mailbox, MN_STOCK_REMOTE);
if (! mailbox->runtime_name)
{
char *path;
path = gnome_vfs_get_local_path_from_uri(self->uri);
if (path)
{
mailbox->runtime_name = g_filename_display_name(path);
g_free(path);
}
else
mailbox->runtime_name = self->vfs_uri
? gnome_vfs_uri_to_string(self->vfs_uri, GNOME_VFS_URI_HIDE_PASSWORD)
: g_strdup(self->uri);
}
}
if (! mailbox->stock_id)
mn_mailbox_set_stock_id(mailbox, MN_STOCK_LOCAL);
}
private Monitor *
find_monitor (self,
const char *uri (check null),
MNVFSMailboxBackend *owner,
GnomeVFSMonitorType type,
GnomeVFSMonitorCallback callback,
gpointer user_data)
{
GSList *l;
MN_LIST_FOREACH(l, selfp->monitors)
{
Monitor *monitor = l->data;
if (monitor->owner == owner
&& monitor->type == type
&& monitor->callback == callback
&& monitor->user_data == user_data
&& ! strcmp(monitor->uri, uri))
return monitor;
}
return NULL;
}
protected void
monitor (self,
const char *uri (check null),
MNVFSMailboxBackend *owner,
GnomeVFSMonitorType type,
GnomeVFSMonitorCallback callback,
gpointer user_data)
{
Monitor *monitor;
g_return_if_fail(owner == NULL || MN_IS_VFS_MAILBOX_BACKEND(owner));
monitor = self_find_monitor(self, uri, owner, type, callback, user_data);
if (! monitor)
{
monitor = g_new0(Monitor, 1);
monitor->uri = g_strdup(uri);
monitor->owner = owner;
monitor->type = type;
monitor->callback = callback;
monitor->user_data = user_data;
monitor->result = -1;
selfp->monitors = g_slist_append(selfp->monitors, monitor);
}
if (monitor->result != GNOME_VFS_OK)
{
GnomeVFSResult result;
result = mn_gnome_vfs_monitor_add_locked(&monitor->handle, uri, type, callback, user_data);
if (result != monitor->result)
{
monitor->result = result;
if (result != GNOME_VFS_OK)
mn_mailbox_warning(MN_MAILBOX(self), _("unable to monitor %s (%s), poll mode activated"), uri, gnome_vfs_result_to_string(result));
self_queue_update_poll(self);
}
}
}
private void
monitor_free (Monitor *monitor (check null))
{
g_free(monitor->uri);
if (monitor->result == GNOME_VFS_OK)
mn_gnome_vfs_monitor_cancel_locked(monitor->handle);
g_free(monitor);
}
private void
monitor_cb (GnomeVFSMonitorHandle *handle,
const char *monitor_uri,
const char *info_uri,
GnomeVFSMonitorEventType event_type,
gpointer user_data)
{
if (event_type == GNOME_VFS_MONITOR_EVENT_CHANGED
|| event_type == GNOME_VFS_MONITOR_EVENT_DELETED
|| event_type == GNOME_VFS_MONITOR_EVENT_CREATED)
{
Self *self = user_data;
MNVFSMailboxBackend *backend;
/*
* Queue a check to detect if the mailbox type has changed. If
* the mailbox has a backend, we must use
* mn_vfs_mailbox_backend_queue_check() (which respects the
* check_latency member of MNVFSMailboxBackend) in order to
* avoid race conditions.
*/
self_lock(self);
backend = selfp->backend;
if (backend)
mn_vfs_mailbox_backend_queue_check(backend);
self_unlock(self);
/*
* Note that at this point, we have released the lock and the
* backend might have been finalized by another thread: we can
* only test the nullity of the pointer.
*/
if (! backend)
mn_reentrant_mailbox_queue_check(MN_REENTRANT_MAILBOX(self));
}
}
protected void
remove_monitors_by_owner (self, MNVFSMailboxBackend *owner)
{
GSList *l;
g_return_if_fail(owner == NULL || MN_IS_VFS_MAILBOX_BACKEND(owner));
start:
MN_LIST_FOREACH(l, selfp->monitors)
{
Monitor *monitor = l->data;
if (monitor->owner == owner)
{
selfp->monitors = mn_g_slist_delete_link_deep_custom(selfp->monitors, l, (GFunc) self_monitor_free, NULL);
self_queue_update_poll(self);
goto start;
}
}
}
private void
queue_update_poll (self)
{
if (! selfp->update_poll_id)
selfp->update_poll_id = gdk_threads_add_idle(self_update_poll_cb, self);
}
private gboolean
update_poll_cb (gpointer data)
{
Self *self = data;
gboolean polled = FALSE;
GSList *l;
self_lock(self);
MN_LIST_FOREACH(l, selfp->monitors)
{
Monitor *monitor = l->data;
if (monitor->result != GNOME_VFS_OK)
{
polled = TRUE;
break;
}
}
selfp->update_poll_id = 0;
self_unlock(self);
if (mn_mailbox_get_poll(MN_MAILBOX(self)) != polled)
mn_mailbox_set_poll(MN_MAILBOX(self), polled);
return FALSE; /* remove source */
}
override (MN:Reentrant:Mailbox) void
reentrant_check (MNReentrantMailbox *mailbox, int check_id)
{
Self *self = SELF(mailbox);
MNVFSMailboxBackend *backend;
MNVFSMailboxBackendClass *class;
GType backend_type = 0;
gboolean exists;
self_lock(self);
/*
* Install the monitors that detect a mailbox type change. These
* monitors are not meant to detect if the mail status of a
* mailbox changes (it is the responsability of the backend),
* although they will do so with some mailbox formats.
*
* For properly detecting the new mailbox type when the file or
* directory changes we need install both a file and a directory
* monitor, since depending on the underlying implementation we
* might not get file events if the URI is a directory, etc.
*/
self_monitor(self, self->uri, NULL, GNOME_VFS_MONITOR_FILE, self_monitor_cb, self);
self_monitor(self, self->uri, NULL, GNOME_VFS_MONITOR_DIRECTORY, self_monitor_cb, self);
backend = selfp->backend;
if (backend)
g_object_ref(backend);
self_unlock(self);
class = backend ? MN_VFS_MAILBOX_BACKEND_GET_CLASS(backend) : NULL;
if (class && class->is(NULL, class, self))
backend_type = G_OBJECT_TYPE(backend);
else
{
exists = mn_vfs_test(self->vfs_uri, G_FILE_TEST_EXISTS);
if (exists)
{
int i;
for (i = 0; mn_vfs_mailbox_backend_types[i]; i++)
{
class = g_type_class_peek(mn_vfs_mailbox_backend_types[i]);
g_assert(class != NULL);
if (class->is(NULL, class, self))
{
backend_type = mn_vfs_mailbox_backend_types[i];
break;
}
if (mn_reentrant_mailbox_check_aborted(mailbox, check_id))
goto end;
}
}
}
if (! backend || backend_type != G_OBJECT_TYPE(backend))
{
MNVFSMailboxBackend *new_backend = NULL;
if (! mn_reentrant_mailbox_check_aborted(mailbox, check_id))
{
GDK_THREADS_ENTER();
if (backend_type)
{
new_backend = g_object_new(backend_type, MN_VFS_MAILBOX_BACKEND_PROP_MAILBOX(self), NULL);
mn_mailbox_set_format(MN_MAILBOX(self), (char *) MN_VFS_MAILBOX_BACKEND_GET_CLASS(new_backend)->format);
}
else
{
mn_mailbox_set_format(MN_MAILBOX(self), NULL);
mn_mailbox_set_error(MN_MAILBOX(self), exists ? _("unknown mailbox format") : _("does not exist"));
}
gdk_flush();
GDK_THREADS_LEAVE();
}
self_lock(self);
if (backend)
{
g_object_unref(backend);
backend = NULL;
}
if (! mn_reentrant_mailbox_check_aborted(mailbox, check_id))
{
if (selfp->backend)
{
g_object_unref(selfp->backend);
selfp->backend = NULL;
}
if (new_backend)
{
selfp->backend = backend = new_backend;
new_backend = NULL;
g_object_ref(backend);
}
}
self_unlock(self);
if (new_backend)
g_object_unref(new_backend);
}
if (backend)
mn_vfs_mailbox_backend_check(backend, check_id);
end:
if (backend)
{
self_lock(self);
g_object_unref(backend);
self_unlock(self);
}
}
public void
lock (self)
{
g_mutex_lock(selfp->mutex);
}
public void
unlock (self)
{
g_mutex_unlock(selfp->mutex);
}
}
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