/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 Lesser General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
*
* Authors:
* Michael Zucchi <notzed@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#include "evolution-config.h"
#include "mail-vfolder.h"
#include <string.h>
#include <glib/gi18n.h>
#include "libemail-engine/e-mail-folder-utils.h"
#include "libemail-engine/e-mail-session.h"
#include "libemail-engine/e-mail-utils.h"
#include "libemail-engine/em-vfolder-context.h"
#include "libemail-engine/em-vfolder-rule.h"
#include "libemail-engine/mail-folder-cache.h"
#include "libemail-engine/mail-mt.h"
#include "libemail-engine/mail-ops.h"
#include "libemail-engine/mail-tools.h"
#define d(x) /* (printf("%s:%s: ", G_STRLOC, G_STRFUNC), (x))*/
/* Note: Once we completely move mail to EDS, this context wont be available for UI.
* and vfoldertypes.xml should be moved here really. */
EMVFolderContext *context; /* context remains open all time */
/* lock for accessing shared resources (below) */
G_LOCK_DEFINE_STATIC (vfolder);
static GHashTable *vfolder_hash;
/* This is a slightly hacky solution to shutting down, we poll this variable in various
* loops, and just quit processing if it is set. */
static volatile gint vfolder_shutdown; /* are we shutting down? */
static void rule_changed (EFilterRule *rule, CamelFolder *folder);
/* ********************************************************************** */
static gboolean
vfolder_cache_has_folder_info (EMailSession *session,
const gchar *folder_uri)
{
MailFolderCache *folder_cache;
CamelStore *store = NULL;
gchar *folder_name = NULL;
gboolean cache_has_info = FALSE;
folder_cache = e_mail_session_get_folder_cache (session);
e_mail_folder_uri_parse (
CAMEL_SESSION (session), folder_uri,
&store, &folder_name, NULL);
if (store != NULL && folder_name != NULL) {
cache_has_info = mail_folder_cache_has_folder_info (
folder_cache, store, folder_name);
}
g_clear_object (&store);
g_free (folder_name);
return cache_has_info;
}
static GList *
vfolder_get_include_subfolders_uris (EMailSession *session,
const gchar *base_uri,
GCancellable *cancellable)
{
GList *uris = NULL;
CamelStore *store = NULL;
gchar *folder_name = NULL;
CamelFolderInfo *fi;
const CamelFolderInfo *cur;
g_return_val_if_fail (session != NULL, NULL);
g_return_val_if_fail (base_uri != NULL, NULL);
g_return_val_if_fail (*base_uri == '*', NULL);
if (!e_mail_folder_uri_parse (CAMEL_SESSION (session), base_uri + 1, &store, &folder_name, NULL))
return NULL;
fi = camel_store_get_folder_info_sync (
store, folder_name,
CAMEL_STORE_FOLDER_INFO_RECURSIVE, cancellable, NULL);
cur = fi;
while (cur) {
if ((cur->flags & CAMEL_FOLDER_NOSELECT) == 0) {
gchar *fi_uri = e_mail_folder_uri_build (store, cur->full_name);
if (fi_uri)
uris = g_list_prepend (uris, fi_uri);
}
/* move to the next fi */
if (cur->child) {
cur = cur->child;
} else if (cur->next) {
cur = cur->next;
} else {
while (cur && !cur->next) {
cur = cur->parent;
}
if (cur)
cur = cur->next;
}
}
camel_folder_info_free (fi);
g_object_unref (store);
g_free (folder_name);
return g_list_reverse (uris);
}
struct _setup_msg {
MailMsg base;
EMailSession *session;
CamelFolder *folder;
gchar *query;
GList *sources_uri;
};
static gchar *
vfolder_setup_desc (struct _setup_msg *m)
{
return g_strdup_printf (
_("Setting up Search Folder: %s"),
camel_folder_get_full_name (m->folder));
}
static void
vfolder_setup_exec (struct _setup_msg *m,
GCancellable *cancellable,
GError **error)
{
GList *l, *list = NULL;
CamelFolder *folder;
camel_vee_folder_set_expression ((CamelVeeFolder *) m->folder, m->query);
for (l = m->sources_uri;
l && !vfolder_shutdown && !g_cancellable_is_cancelled (cancellable);
l = l->next) {
const gchar *uri = l->data;
d (printf (" Adding uri: %s\n", uri));
if (!uri || !*uri || !uri[1])
continue;
if (*uri == '*') {
/* include folder and its subfolders */
GList *uris, *iter;
uris = vfolder_get_include_subfolders_uris (m->session, uri, cancellable);
for (iter = uris; iter; iter = iter->next) {
const gchar *fi_uri = iter->data;
folder = e_mail_session_uri_to_folder_sync (
m->session, fi_uri, 0, cancellable, NULL);
if (folder != NULL)
list = g_list_append (list, folder);
}
g_list_free_full (uris, g_free);
} else {
folder = e_mail_session_uri_to_folder_sync (m->session, l->data, 0, cancellable, NULL);
if (folder != NULL)
list = g_list_append (list, folder);
}
}
if (!vfolder_shutdown && !g_cancellable_is_cancelled (cancellable))
camel_vee_folder_set_folders ((CamelVeeFolder *) m->folder, list, cancellable);
g_list_free_full (list, g_object_unref);
}
static void
vfolder_setup_done (struct _setup_msg *m)
{
}
static void
vfolder_setup_free (struct _setup_msg *m)
{
camel_folder_thaw (m->folder);
g_object_unref (m->session);
g_object_unref (m->folder);
g_free (m->query);
g_list_free_full (m->sources_uri, g_free);
}
static MailMsgInfo vfolder_setup_info = {
sizeof (struct _setup_msg),
(MailMsgDescFunc) vfolder_setup_desc,
(MailMsgExecFunc) vfolder_setup_exec,
(MailMsgDoneFunc) vfolder_setup_done,
(MailMsgFreeFunc) vfolder_setup_free
};
/* sources_uri should be camel uri's */
static gint
vfolder_setup (CamelSession *session,
CamelFolder *folder,
const gchar *query,
GList *sources_uri)
{
struct _setup_msg *m;
gint id;
m = mail_msg_new (&vfolder_setup_info);
m->session = g_object_ref (session);
m->folder = g_object_ref (folder);
m->query = g_strdup (query);
m->sources_uri = sources_uri;
camel_folder_freeze (m->folder);
id = m->base.seq;
mail_msg_slow_ordered_push (m);
return id;
}
/* ********************************************************************** */
static void
vfolder_add_remove_one (GList *vfolders,
gboolean remove,
CamelFolder *folder,
GCancellable *cancellable)
{
GList *iter;
for (iter = vfolders; iter && !vfolder_shutdown; iter = iter->next) {
CamelVeeFolder *vfolder = CAMEL_VEE_FOLDER (iter->data);
if (!vfolder)
continue;
if (remove)
camel_vee_folder_remove_folder (vfolder, folder, cancellable);
else
camel_vee_folder_add_folder (vfolder, folder, cancellable);
}
}
struct _adduri_msg {
MailMsg base;
EMailSession *session;
gchar *uri;
GList *folders;
gint remove;
};
static gchar *
vfolder_adduri_desc (struct _adduri_msg *m)
{
CamelStore *store;
CamelService *service;
const gchar *display_name;
gchar *folder_name;
gchar *description;
gboolean success;
success = e_mail_folder_uri_parse (
CAMEL_SESSION (m->session), m->uri,
&store, &folder_name, NULL);
if (!success)
return NULL;
service = CAMEL_SERVICE (store);
display_name = camel_service_get_display_name (service);
description = g_strdup_printf (
_("Updating Search Folders for “%s : %s”"),
display_name, folder_name);
g_object_unref (store);
g_free (folder_name);
return description;
}
static void
vfolder_adduri_exec (struct _adduri_msg *m,
GCancellable *cancellable,
GError **error)
{
CamelFolder *folder = NULL;
gboolean cache_has_info;
if (vfolder_shutdown)
return;
cache_has_info = vfolder_cache_has_folder_info (
m->session, m->uri[0] == '*' ? m->uri + 1 : m->uri);
if (!m->remove && !cache_has_info) {
g_warning (
"Folder '%s' disappeared while I was "
"adding/removing it to/from my vfolder", m->uri);
return;
}
if (m->uri[0] == '*') {
GList *uris, *iter;
uris = vfolder_get_include_subfolders_uris (m->session, m->uri, cancellable);
for (iter = uris; iter; iter = iter->next) {
const gchar *fi_uri = iter->data;
folder = e_mail_session_uri_to_folder_sync (
m->session, fi_uri, 0, cancellable, NULL);
if (folder != NULL) {
vfolder_add_remove_one (m->folders, m->remove, folder, cancellable);
g_object_unref (folder);
}
}
g_list_free_full (uris, g_free);
} else {
/* always pick fresh folders - they are
* from CamelStore's folders bag anyway */
folder = e_mail_session_uri_to_folder_sync (
m->session, m->uri, 0, cancellable, error);
if (folder != NULL) {
vfolder_add_remove_one (m->folders, m->remove, folder, cancellable);
g_object_unref (folder);
}
}
}
static void
vfolder_adduri_done (struct _adduri_msg *m)
{
}
static void
vfolder_adduri_free (struct _adduri_msg *m)
{
g_object_unref (m->session);
g_list_foreach (m->folders, (GFunc) camel_folder_thaw, NULL);
g_list_free_full (m->folders, g_object_unref);
g_free (m->uri);
}
static MailMsgInfo vfolder_adduri_info = {
sizeof (struct _adduri_msg),
(MailMsgDescFunc) vfolder_adduri_desc,
(MailMsgExecFunc) vfolder_adduri_exec,
(MailMsgDoneFunc) vfolder_adduri_done,
(MailMsgFreeFunc) vfolder_adduri_free
};
/* uri should be a camel uri */
static gint
vfolder_adduri (EMailSession *session,
const gchar *uri,
GList *folders,
gint remove)
{
struct _adduri_msg *m;
gint id;
m = mail_msg_new (&vfolder_adduri_info);
m->session = g_object_ref (session);
m->folders = folders;
m->uri = g_strdup (uri);
m->remove = remove;
g_list_foreach (m->folders, (GFunc) camel_folder_freeze, NULL);
id = m->base.seq;
mail_msg_slow_ordered_push (m);
return id;
}
/* ********************************************************************** */
/* so special we never use it */
static gint
folder_is_spethal (CamelStore *store,
const gchar *folder_name)
{
/* This is a bit of a hack, but really the only way it can be done
* at the moment. */
if (camel_store_get_flags (store) & CAMEL_STORE_VTRASH)
if (g_strcmp0 (folder_name, CAMEL_VTRASH_NAME) == 0)
return TRUE;
if (camel_store_get_flags (store) & CAMEL_STORE_VJUNK)
if (g_strcmp0 (folder_name, CAMEL_VJUNK_NAME) == 0)
return TRUE;
return FALSE;
}
/**
* mail_vfolder_add_folder:
* @store: a #CamelStore
* @folder: a folder name
* @remove: whether the folder should be removed or added
*
* Called when a new folder becomes (un)available. If @store is not a
* CamelVeeStore, the folder is added/removed from the list of cached source
* folders. Then each vfolder rule is checked to see if the specified folder
* matches a source of the rule. It builds a list of vfolders that use (or
* would use) the specified folder as a source. It then adds (or removes)
* this folder to (from) those vfolders via camel_vee_folder_add/
* remove_folder() but does not modify the actual filters or write changes
* to disk.
*
* NOTE: This function must be called from the main thread.
*/
static void
mail_vfolder_add_folder (CamelStore *store,
const gchar *folder_name,
gint remove)
{
CamelService *service;
CamelSession *session;
EFilterRule *rule;
EMVFolderRule *vrule;
const gchar *source;
CamelVeeFolder *vf;
CamelProvider *provider;
GList *folders = NULL, *folders_include_subfolders = NULL;
gint remote;
gchar *uri;
g_return_if_fail (CAMEL_IS_STORE (store));
g_return_if_fail (folder_name != NULL);
service = CAMEL_SERVICE (store);
provider = camel_service_get_provider (service);
remote = (provider->flags & CAMEL_PROVIDER_IS_REMOTE) != 0;
if (folder_is_spethal (store, folder_name))
return;
g_return_if_fail (mail_in_main_thread ());
session = camel_service_ref_session (service);
uri = e_mail_folder_uri_build (store, folder_name);
G_LOCK (vfolder);
if (context == NULL)
goto done;
rule = NULL;
while ((rule = e_rule_context_next_rule ((ERuleContext *) context, rule, NULL))) {
gint found = FALSE;
if (!rule->name) {
d (printf ("invalid rule (%p): rule->name is set to NULL\n", rule));
continue;
}
vrule = (EMVFolderRule *) rule;
/* Don't auto-add any sent/drafts folders etc,
* they must be explictly listed as a source. */
if (rule->source
&& !CAMEL_IS_VEE_STORE (store)
&& ((em_vfolder_rule_get_with (vrule) == EM_VFOLDER_RULE_WITH_LOCAL && !remote)
|| (em_vfolder_rule_get_with (vrule) == EM_VFOLDER_RULE_WITH_REMOTE_ACTIVE && remote)
|| (em_vfolder_rule_get_with (vrule) == EM_VFOLDER_RULE_WITH_LOCAL_REMOTE_ACTIVE)))
found = TRUE;
source = NULL;
while (!found && (source = em_vfolder_rule_next_source (vrule, source))) {
found = e_mail_folder_uri_equal (session, uri, source);
}
if (found) {
vf = g_hash_table_lookup (vfolder_hash, rule->name);
if (!vf) {
g_warning ("vf is NULL for %s\n", rule->name);
continue;
}
g_object_ref (vf);
if (em_vfolder_rule_source_get_include_subfolders (vrule, uri))
folders_include_subfolders = g_list_prepend (folders_include_subfolders, vf);
else
folders = g_list_prepend (folders, vf);
}
}
done:
G_UNLOCK (vfolder);
if (folders != NULL)
vfolder_adduri (
E_MAIL_SESSION (session),
uri, folders, remove);
if (folders_include_subfolders) {
gchar *exuri = g_strconcat ("*", uri, NULL);
vfolder_adduri (
E_MAIL_SESSION (session),
exuri, folders_include_subfolders, remove);
g_free (exuri);
}
g_object_unref (session);
g_free (uri);
}
/**
* mail_vfolder_delete_folder:
* @store: a #CamelStore
* @folder_name: a folder name
*
* Looks through all vfolder rules to see if @folder_name is listed as a
* source for any vfolder rules. If the folder is found in the source for
* any rule, it is removed and the user is alerted to the fact that the
* vfolder rules have been updated. The new vfolder rules are written
* to disk.
*
* XXX: It doesn't appear that the changes to the vfolder rules are sent
* down to the camel level, however. So the actual vfolders will not change
* behavior until evolution is restarted (?)
*
* NOTE: This function must be called from the main thread.
*/
static void
mail_vfolder_delete_folder (CamelStore *store,
const gchar *folder_name)
{
ERuleContext *rule_context;
EFilterRule *rule;
CamelService *service;
CamelSession *session;
const gchar *source;
CamelVeeFolder *vf;
GString *changed;
guint changed_count;
gchar *uri;
g_return_if_fail (CAMEL_IS_STORE (store));
g_return_if_fail (folder_name != NULL);
if (folder_is_spethal (store, folder_name))
return;
d (printf ("Deleting uri to check: %s\n", uri));
g_return_if_fail (mail_in_main_thread ());
service = CAMEL_SERVICE (store);
session = camel_service_ref_session (service);
uri = e_mail_folder_uri_build (store, folder_name);
changed_count = 0;
changed = g_string_new ("");
G_LOCK (vfolder);
if (context == NULL)
goto done;
rule_context = E_RULE_CONTEXT (context);
/* see if any rules directly reference this removed uri */
rule = NULL;
while ((rule = e_rule_context_next_rule (rule_context, rule, NULL))) {
EMVFolderRule *vf_rule = EM_VFOLDER_RULE (rule);
if (!rule->name)
continue;
source = NULL;
while ((source = em_vfolder_rule_next_source (vf_rule, source))) {
/* Remove all sources that match, ignore changed events though
* because the adduri call above does the work async */
if (e_mail_folder_uri_equal (session, uri, source)) {
vf = g_hash_table_lookup (
vfolder_hash, rule->name);
if (!vf) {
g_warning ("vf is NULL for %s\n", rule->name);
continue;
}
g_signal_handlers_disconnect_matched (
rule, G_SIGNAL_MATCH_FUNC |
G_SIGNAL_MATCH_DATA, 0, 0, NULL,
rule_changed, vf);
em_vfolder_rule_remove_source (vf_rule, source);
g_signal_connect (
rule, "changed",
G_CALLBACK (rule_changed), vf);
if (changed_count == 0) {
g_string_append (changed, rule->name);
} else {
if (changed_count == 1) {
g_string_prepend (changed, " ");
g_string_append (changed, "\n");
}
g_string_append_printf (
changed, " %s\n",
rule->name);
}
changed_count++;
source = NULL;
}
}
}
done:
G_UNLOCK (vfolder);
if (changed_count > 0) {
EAlertSink *alert_sink;
const gchar *config_dir;
gchar *user, *info;
alert_sink = mail_msg_get_alert_sink ();
info = g_strdup_printf (ngettext (
/* Translators: The first %s is name of the affected
* search folder(s), the second %s is the URI of the
* removed folder. For more than one search folder is
* each of them on a separate line, with four spaces
* in front of its name, without quotes. */
"The Search Folder “%s” has been modified to "
"account for the deleted folder\n“%s”.",
"The following Search Folders\n%s have been modified "
"to account for the deleted folder\n“%s”.",
changed_count), changed->str, uri);
e_alert_submit (
alert_sink, "mail:vfolder-updated", info, NULL);
g_free (info);
config_dir = mail_session_get_config_dir ();
user = g_build_filename (config_dir, "vfolders.xml", NULL);
e_rule_context_save ((ERuleContext *) context, user);
g_free (user);
}
g_string_free (changed, TRUE);
g_object_unref (session);
g_free (uri);
}
/* called when a uri is renamed in a store */
static void
mail_vfolder_rename_folder (CamelStore *store,
const gchar *old_folder_name,
const gchar *new_folder_name)
{
ERuleContext *rule_context;
EFilterRule *rule;
const gchar *source;
CamelVeeFolder *vf;
CamelService *service;
CamelSession *session;
gint changed = 0;
gchar *old_uri;
gchar *new_uri;
d (printf ("vfolder rename uri: %s to %s\n", cfrom, cto));
if (context == NULL)
return;
if (folder_is_spethal (store, old_folder_name))
return;
if (folder_is_spethal (store, new_folder_name))
return;
g_return_if_fail (mail_in_main_thread ());
service = CAMEL_SERVICE (store);
session = camel_service_ref_session (service);
old_uri = e_mail_folder_uri_build (store, old_folder_name);
new_uri = e_mail_folder_uri_build (store, new_folder_name);
G_LOCK (vfolder);
rule_context = E_RULE_CONTEXT (context);
/* see if any rules directly reference this removed uri */
rule = NULL;
while ((rule = e_rule_context_next_rule (rule_context, rule, NULL))) {
EMVFolderRule *vf_rule = EM_VFOLDER_RULE (rule);
source = NULL;
while ((source = em_vfolder_rule_next_source (vf_rule, source))) {
/* Remove all sources that match, ignore changed events though
* because the adduri call above does the work async */
if (e_mail_folder_uri_equal (session, old_uri, source)) {
vf = g_hash_table_lookup (vfolder_hash, rule->name);
if (!vf) {
g_warning ("vf is NULL for %s\n", rule->name);
continue;
}
g_signal_handlers_disconnect_matched (
rule, G_SIGNAL_MATCH_FUNC |
G_SIGNAL_MATCH_DATA, 0, 0, NULL,
rule_changed, vf);
em_vfolder_rule_remove_source (vf_rule, source);
em_vfolder_rule_add_source (vf_rule, new_uri);
g_signal_connect (
vf_rule, "changed",
G_CALLBACK (rule_changed), vf);
changed++;
source = NULL;
}
}
}
G_UNLOCK (vfolder);
if (changed) {
const gchar *config_dir;
gchar *user;
d (printf ("Vfolders updated from renamed folder\n"));
config_dir = mail_session_get_config_dir ();
user = g_build_filename (config_dir, "vfolders.xml", NULL);
e_rule_context_save ((ERuleContext *) context, user);
g_free (user);
}
g_free (old_uri);
g_free (new_uri);
g_object_unref (session);
}
/* ********************************************************************** */
static void context_rule_added (ERuleContext *ctx, EFilterRule *rule, EMailSession *session);
static void
rule_add_sources (EMailSession *session,
GQueue *queue,
GList **sources_urip,
EMVFolderRule *rule)
{
GList *sources_uri = *sources_urip;
GList *head, *link;
head = g_queue_peek_head_link (queue);
for (link = head; link != NULL; link = g_list_next (link)) {
const gchar *uri = link->data;
/* always pick fresh folders - they are
* from CamelStore's folders bag anyway */
if (vfolder_cache_has_folder_info (session, uri)) {
/* "tag" uris with subfolders with a star prefix */
if (!rule || !em_vfolder_rule_source_get_include_subfolders (rule, uri))
sources_uri = g_list_prepend (sources_uri, g_strdup (uri));
else
sources_uri = g_list_prepend (sources_uri, g_strconcat ("*", uri, NULL));
}
}
*sources_urip = sources_uri;
}
static void
rule_changed (EFilterRule *rule,
CamelFolder *folder)
{
CamelStore *store;
CamelService *service;
CamelSession *session;
MailFolderCache *cache;
GList *sources_uri = NULL;
GString *query;
const gchar *full_name;
full_name = camel_folder_get_full_name (folder);
store = camel_folder_get_parent_store (folder);
session = camel_service_ref_session (CAMEL_SERVICE (store));
cache = e_mail_session_get_folder_cache (E_MAIL_SESSION (session));
service = camel_session_ref_service (
session, E_MAIL_SESSION_VFOLDER_UID);
g_return_if_fail (service != NULL);
/* If the folder has changed name, then
* add it, then remove the old manually. */
if (strcmp (full_name, rule->name) != 0) {
gchar *oldname;
gpointer key;
gpointer oldfolder;
G_LOCK (vfolder);
if (g_hash_table_lookup_extended (
vfolder_hash, full_name, &key, &oldfolder)) {
g_hash_table_remove (vfolder_hash, key);
g_free (key);
g_hash_table_insert (
vfolder_hash, g_strdup (rule->name), folder);
G_UNLOCK (vfolder);
} else {
G_UNLOCK (vfolder);
g_warning (
"couldn't find a vfolder rule "
"in our table? %s", full_name);
}
oldname = g_strdup (full_name);
/* FIXME Not passing a GCancellable or GError. */
camel_store_rename_folder_sync (
CAMEL_STORE (service),
oldname, rule->name, NULL, NULL);
g_free (oldname);
}
g_object_unref (service);
service = NULL;
d (printf ("Filter rule changed? for folder '%s'!!\n", folder->name));
camel_vee_folder_set_auto_update (
CAMEL_VEE_FOLDER (folder),
em_vfolder_rule_get_autoupdate ((EMVFolderRule *) rule));
if (em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_SPECIFIC) {
/* find any (currently available) folders, and add them to the ones to open */
rule_add_sources (
E_MAIL_SESSION (session),
em_vfolder_rule_get_sources ((EMVFolderRule *) rule),
&sources_uri, (EMVFolderRule *) rule);
}
G_LOCK (vfolder);
if (em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_LOCAL ||
em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_LOCAL_REMOTE_ACTIVE) {
GQueue queue = G_QUEUE_INIT;
mail_folder_cache_get_local_folder_uris (cache, &queue);
rule_add_sources (
E_MAIL_SESSION (session),
&queue, &sources_uri, NULL);
while (!g_queue_is_empty (&queue))
g_free (g_queue_pop_head (&queue));
}
if (em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_REMOTE_ACTIVE ||
em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_LOCAL_REMOTE_ACTIVE) {
GQueue queue = G_QUEUE_INIT;
mail_folder_cache_get_remote_folder_uris (cache, &queue);
rule_add_sources (
E_MAIL_SESSION (session),
&queue, &sources_uri, NULL);
while (!g_queue_is_empty (&queue))
g_free (g_queue_pop_head (&queue));
}
G_UNLOCK (vfolder);
query = g_string_new ("");
e_filter_rule_build_code (rule, query);
vfolder_setup (session, folder, query->str, sources_uri);
g_string_free (query, TRUE);
g_object_unref (session);
}
static void
context_rule_added (ERuleContext *ctx,
EFilterRule *rule,
EMailSession *session)
{
CamelFolder *folder;
CamelService *service;
d (printf ("rule added: %s\n", rule->name));
service = camel_session_ref_service (
CAMEL_SESSION (session), E_MAIL_SESSION_VFOLDER_UID);
g_return_if_fail (service != NULL);
/* this always runs quickly */
/* FIXME Not passing a GCancellable or GError. */
folder = camel_store_get_folder_sync (
CAMEL_STORE (service), rule->name, 0, NULL, NULL);
if (folder) {
g_signal_connect (
rule, "changed",
G_CALLBACK (rule_changed), folder);
G_LOCK (vfolder);
g_hash_table_insert (vfolder_hash, g_strdup (rule->name), folder);
G_UNLOCK (vfolder);
rule_changed (rule, folder);
}
g_object_unref (service);
}
static void
context_rule_removed (ERuleContext *ctx,
EFilterRule *rule,
EMailSession *session)
{
CamelService *service;
gpointer key, folder = NULL;
d (printf ("rule removed; %s\n", rule->name));
service = camel_session_ref_service (
CAMEL_SESSION (session), E_MAIL_SESSION_VFOLDER_UID);
g_return_if_fail (service != NULL);
/* TODO: remove from folder info cache? */
G_LOCK (vfolder);
if (g_hash_table_lookup_extended (vfolder_hash, rule->name, &key, &folder)) {
g_hash_table_remove (vfolder_hash, key);
g_free (key);
}
G_UNLOCK (vfolder);
/* FIXME Not passing a GCancellable or GError. */
camel_store_delete_folder_sync (
CAMEL_STORE (service), rule->name, NULL, NULL);
/* this must be unref'd after its deleted */
if (folder)
g_object_unref ((CamelFolder *) folder);
g_object_unref (service);
}
static void
store_folder_deleted_cb (CamelStore *store,
CamelFolderInfo *info)
{
EFilterRule *rule;
gchar *user;
d (printf ("Folder deleted: %s\n", info->name));
/* Unmatched folder doesn't have any rule */
if (g_strcmp0 (CAMEL_UNMATCHED_NAME, info->full_name) == 0)
return;
/* Warning not thread safe, but might be enough */
G_LOCK (vfolder);
/* delete it from our list */
rule = e_rule_context_find_rule ((ERuleContext *) context, info->full_name, NULL);
if (rule) {
CamelSession *session;
const gchar *config_dir;
session = camel_service_ref_session (CAMEL_SERVICE (store));
/* We need to stop listening to removed events,
* otherwise we'll try and remove it again. */
g_signal_handlers_disconnect_matched (
context, G_SIGNAL_MATCH_FUNC,
0, 0, NULL, context_rule_removed, NULL);
e_rule_context_remove_rule ((ERuleContext *) context, rule);
g_object_unref (rule);
/* FIXME This is dangerous. Either the signal closure
* needs to be referenced somehow, or ERuleContext
* needs to keep its own CamelSession reference. */
g_signal_connect (
context, "rule_removed",
G_CALLBACK (context_rule_removed), session);
config_dir = mail_session_get_config_dir ();
user = g_build_filename (config_dir, "vfolders.xml", NULL);
e_rule_context_save ((ERuleContext *) context, user);
g_free (user);
g_object_unref (session);
} else {
g_warning (
"Cannot find rule for deleted vfolder '%s'",
info->display_name);
}
G_UNLOCK (vfolder);
}
static void
store_folder_renamed_cb (CamelStore *store,
const gchar *old_name,
CamelFolderInfo *info)
{
EFilterRule *rule;
gchar *user;
gpointer key, folder;
/* This should be more-or-less thread-safe */
d (printf ("Folder renamed to '%s' from '%s'\n", info->full_name, old_name));
/* Folder is already renamed? */
G_LOCK (vfolder);
d (printf ("Changing folder name in hash table to '%s'\n", info->full_name));
if (g_hash_table_lookup_extended (vfolder_hash, old_name, &key, &folder)) {
const gchar *config_dir;
g_hash_table_remove (vfolder_hash, key);
g_free (key);
g_hash_table_insert (vfolder_hash, g_strdup (info->full_name), folder);
rule = e_rule_context_find_rule ((ERuleContext *) context, old_name, NULL);
if (!rule) {
G_UNLOCK (vfolder);
g_warning ("Rule shouldn't be NULL\n");
return;
}
g_signal_handlers_disconnect_matched (
rule, G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
0, 0, NULL, rule_changed, folder);
e_filter_rule_set_name (rule, info->full_name);
g_signal_connect (
rule, "changed",
G_CALLBACK (rule_changed), folder);
config_dir = mail_session_get_config_dir ();
user = g_build_filename (config_dir, "vfolders.xml", NULL);
e_rule_context_save ((ERuleContext *) context, user);
g_free (user);
G_UNLOCK (vfolder);
} else {
G_UNLOCK (vfolder);
g_warning ("couldn't find a vfolder rule in our table? %s", info->full_name);
}
}
static void
folder_available_cb (MailFolderCache *cache,
CamelStore *store,
const gchar *folder_name)
{
mail_vfolder_add_folder (store, folder_name, FALSE);
}
static void
folder_unavailable_cb (MailFolderCache *cache,
CamelStore *store,
const gchar *folder_name)
{
mail_vfolder_add_folder (store, folder_name, TRUE);
}
static void
folder_deleted_cb (MailFolderCache *cache,
CamelStore *store,
const gchar *folder_name)
{
mail_vfolder_delete_folder (store, folder_name);
}
static void
folder_renamed_cb (MailFolderCache *cache,
CamelStore *store,
const gchar *old_folder_name,
const gchar *new_folder_name,
gpointer user_data)
{
mail_vfolder_rename_folder (store, old_folder_name, new_folder_name);
}
void
vfolder_load_storage (EMailSession *session)
{
/* lock for loading storage, it is safe to call it more than once */
G_LOCK_DEFINE_STATIC (vfolder_hash);
CamelStore *vfolder_store;
const gchar *config_dir;
gchar *user;
EFilterRule *rule;
MailFolderCache *folder_cache;
gchar *xmlfile;
G_LOCK (vfolder_hash);
if (vfolder_hash) {
/* we have already initialized */
G_UNLOCK (vfolder_hash);
return;
}
vfolder_hash = g_hash_table_new (g_str_hash, g_str_equal);
G_UNLOCK (vfolder_hash);
config_dir = mail_session_get_config_dir ();
vfolder_store = e_mail_session_get_vfolder_store (session);
g_signal_connect (
vfolder_store, "folder-deleted",
G_CALLBACK (store_folder_deleted_cb), NULL);
g_signal_connect (
vfolder_store, "folder-renamed",
G_CALLBACK (store_folder_renamed_cb), NULL);
/* load our rules */
user = g_build_filename (config_dir, "vfolders.xml", NULL);
/* This needs editor context which is only in the mail/. But really to run here we dont need editor context.
* So till we split this to EDS, we would let mail/ create this and later one it is any ways two separate
* contexts. */
context = e_mail_session_create_vfolder_context (session);
xmlfile = g_build_filename (EVOLUTION_PRIVDATADIR, "vfoldertypes.xml", NULL);
if (e_rule_context_load ((ERuleContext *) context,
xmlfile, user) != 0) {
g_warning ("cannot load vfolders: %s\n", ((ERuleContext *) context)->error);
}
g_free (xmlfile);
g_free (user);
g_signal_connect (
context, "rule_added",
G_CALLBACK (context_rule_added), session);
g_signal_connect (
context, "rule_removed",
G_CALLBACK (context_rule_removed), session);
/* and setup the rules we have */
rule = NULL;
while ((rule = e_rule_context_next_rule ((ERuleContext *) context, rule, NULL))) {
if (rule->name) {
d (printf ("rule added: %s\n", rule->name));
context_rule_added ((ERuleContext *) context, rule, session);
} else {
d (printf ("invalid rule (%p) encountered: rule->name is NULL\n", rule));
}
}
folder_cache = e_mail_session_get_folder_cache (session);
g_signal_connect (
folder_cache, "folder-available",
G_CALLBACK (folder_available_cb), NULL);
g_signal_connect (
folder_cache, "folder-unavailable",
G_CALLBACK (folder_unavailable_cb), NULL);
g_signal_connect (
folder_cache, "folder-deleted",
G_CALLBACK (folder_deleted_cb), NULL);
g_signal_connect (
folder_cache, "folder-renamed",
G_CALLBACK (folder_renamed_cb), NULL);
}
static void
vfolder_foreach_cb (gpointer key,
gpointer data,
gpointer user_data)
{
CamelFolder *folder = CAMEL_FOLDER (data);
if (folder)
g_object_unref (folder);
g_free (key);
}
void
mail_vfolder_shutdown (void)
{
vfolder_shutdown = 1;
if (vfolder_hash) {
g_hash_table_foreach (vfolder_hash, vfolder_foreach_cb, NULL);
g_hash_table_destroy (vfolder_hash);
vfolder_hash = NULL;
}
if (context) {
g_object_unref (context);
context = NULL;
}
}