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/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "array.h"
#include "mail-storage-private.h"
#include "mailbox-list-private.h"
#include "notify-plugin-private.h"
#define NOTIFY_CONTEXT(obj) \
MODULE_CONTEXT_REQUIRE(obj, notify_storage_module)
#define NOTIFY_MAIL_CONTEXT(obj) \
MODULE_CONTEXT_REQUIRE(obj, notify_mail_module)
static MODULE_CONTEXT_DEFINE_INIT(notify_storage_module,
&mail_storage_module_register);
static MODULE_CONTEXT_DEFINE_INIT(notify_mail_module,
&mail_module_register);
static void
notify_mail_expunge(struct mail *_mail)
{
struct mail_private *mail = (struct mail_private *)_mail;
union mail_module_context *lmail = NOTIFY_MAIL_CONTEXT(mail);
notify_contexts_mail_expunge(_mail);
lmail->super.expunge(_mail);
}
static void
notify_mail_update_flags(struct mail *_mail, enum modify_type modify_type,
enum mail_flags flags)
{
struct mail_private *mail = (struct mail_private *)_mail;
union mail_module_context *lmail = NOTIFY_MAIL_CONTEXT(mail);
enum mail_flags old_flags, new_flags;
old_flags = mail_get_flags(_mail);
lmail->super.update_flags(_mail, modify_type, flags);
new_flags = mail_get_flags(_mail);
if ((old_flags ^ new_flags) == 0)
return;
notify_contexts_mail_update_flags(_mail, old_flags);
}
static void
notify_mail_update_keywords(struct mail *_mail, enum modify_type modify_type,
struct mail_keywords *keywords)
{
struct mail_private *mail = (struct mail_private *)_mail;
union mail_module_context *lmail = NOTIFY_MAIL_CONTEXT(mail);
const char *const *old_keywords, *const *new_keywords;
unsigned int i;
old_keywords = mail_get_keywords(_mail);
lmail->super.update_keywords(_mail, modify_type, keywords);
new_keywords = mail_get_keywords(_mail);
for (i = 0; old_keywords[i] != NULL && new_keywords[i] != NULL; i++) {
if (strcmp(old_keywords[i], new_keywords[i]) != 0)
break;
}
if (old_keywords[i] == NULL && new_keywords[i] == NULL)
return;
notify_contexts_mail_update_keywords(_mail, old_keywords);
}
static void notify_mail_allocated(struct mail *_mail)
{
struct mail_private *mail = (struct mail_private *)_mail;
struct mail_vfuncs *v = mail->vlast;
union mail_module_context *lmail;
if ((_mail->transaction->flags & MAILBOX_TRANSACTION_FLAG_NO_NOTIFY) != 0)
return;
lmail = p_new(mail->pool, union mail_module_context, 1);
lmail->super = *v;
mail->vlast = &lmail->super;
v->expunge = notify_mail_expunge;
v->update_flags = notify_mail_update_flags;
v->update_keywords = notify_mail_update_keywords;
MODULE_CONTEXT_SET_SELF(mail, notify_mail_module, lmail);
}
static int
notify_copy(struct mail_save_context *ctx, struct mail *mail)
{
union mailbox_module_context *lbox =
NOTIFY_CONTEXT(ctx->transaction->box);
int ret;
if ((ret = lbox->super.copy(ctx, mail)) < 0)
return -1;
if ((ctx->transaction->flags & MAILBOX_TRANSACTION_FLAG_NO_NOTIFY) != 0) {
/* no notifications */
} else if (ctx->saving) {
/* we came from mailbox_save_using_mail() */
notify_contexts_mail_save(ctx->dest_mail);
} else {
notify_contexts_mail_copy(mail, ctx->dest_mail);
}
return ret;
}
static int
notify_save_finish(struct mail_save_context *ctx)
{
union mailbox_module_context *lbox =
NOTIFY_CONTEXT(ctx->transaction->box);
struct mail *dest_mail = ctx->copying_via_save ? NULL : ctx->dest_mail;
if (lbox->super.save_finish(ctx) < 0)
return -1;
if (dest_mail != NULL &&
(ctx->transaction->flags & MAILBOX_TRANSACTION_FLAG_NO_NOTIFY) == 0)
notify_contexts_mail_save(dest_mail);
return 0;
}
static struct mailbox_transaction_context *
notify_transaction_begin(struct mailbox *box,
enum mailbox_transaction_flags flags,
const char *reason)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(box);
struct mailbox_transaction_context *t;
t = lbox->super.transaction_begin(box, flags, reason);
if ((t->flags & MAILBOX_TRANSACTION_FLAG_NO_NOTIFY) == 0)
notify_contexts_mail_transaction_begin(t);
return t;
}
static int
notify_transaction_commit(struct mailbox_transaction_context *t,
struct mail_transaction_commit_changes *changes_r)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(t->box);
bool no_notify = (t->flags & MAILBOX_TRANSACTION_FLAG_NO_NOTIFY) != 0;
if ((lbox->super.transaction_commit(t, changes_r)) < 0) {
if (!no_notify)
notify_contexts_mail_transaction_rollback(t);
return -1;
}
/* FIXME: note that t is already freed at this stage. it's not actually
being dereferenced anymore though. still, a bit unsafe.. */
if (!no_notify)
notify_contexts_mail_transaction_commit(t, changes_r);
return 0;
}
static void
notify_transaction_rollback(struct mailbox_transaction_context *t)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(t->box);
if ((t->flags & MAILBOX_TRANSACTION_FLAG_NO_NOTIFY) == 0)
notify_contexts_mail_transaction_rollback(t);
lbox->super.transaction_rollback(t);
}
static int
notify_mailbox_create(struct mailbox *box, const struct mailbox_update *update,
bool directory)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(box);
if (lbox->super.create_box(box, update, directory) < 0)
return -1;
notify_contexts_mailbox_create(box);
return 0;
}
static int
notify_mailbox_update(struct mailbox *box, const struct mailbox_update *update)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(box);
if (lbox->super.update_box(box, update) < 0)
return -1;
notify_contexts_mailbox_update(box);
return 0;
}
static int
notify_mailbox_delete(struct mailbox *box)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(box);
notify_contexts_mailbox_delete_begin(box);
if (lbox->super.delete_box(box) < 0) {
notify_contexts_mailbox_delete_rollback();
return -1;
}
notify_contexts_mailbox_delete_commit(box);
return 0;
}
static int
notify_mailbox_rename(struct mailbox *src, struct mailbox *dest)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(src);
if (lbox->super.rename_box(src, dest) < 0)
return -1;
notify_contexts_mailbox_rename(src, dest);
return 0;
}
static int
notify_mailbox_set_subscribed(struct mailbox *box, bool set)
{
union mailbox_module_context *lbox = NOTIFY_CONTEXT(box);
if (lbox->super.set_subscribed(box, set) < 0)
return -1;
notify_contexts_mailbox_set_subscribed(box, set);
return 0;
}
static void notify_mailbox_allocated(struct mailbox *box)
{
struct mailbox_vfuncs *v = box->vlast;
union mailbox_module_context *lbox;
lbox = p_new(box->pool, union mailbox_module_context, 1);
lbox->super = *v;
box->vlast = &lbox->super;
v->copy = notify_copy;
v->save_finish = notify_save_finish;
v->transaction_begin = notify_transaction_begin;
v->transaction_commit = notify_transaction_commit;
v->transaction_rollback = notify_transaction_rollback;
v->create_box = notify_mailbox_create;
v->update_box = notify_mailbox_update;
v->delete_box = notify_mailbox_delete;
v->rename_box = notify_mailbox_rename;
v->set_subscribed = notify_mailbox_set_subscribed;
MODULE_CONTEXT_SET_SELF(box, notify_storage_module, lbox);
}
static struct mail_storage_hooks notify_mail_storage_hooks = {
.mailbox_allocated = notify_mailbox_allocated,
.mail_allocated = notify_mail_allocated
};
void notify_plugin_init_storage(struct module *module)
{
mail_storage_hooks_add(module, ¬ify_mail_storage_hooks);
}
void notify_plugin_deinit_storage(void)
{
mail_storage_hooks_remove(¬ify_mail_storage_hooks);
}
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