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/* Copyright (c) 2003-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "array.h"
#include "dict.h"
#include "index-storage.h"
#include "index-sync-private.h"
#include "index-pop3-uidl.h"
#include "index-mail.h"
static void index_transaction_free(struct mailbox_transaction_context *t)
{
if (t->view_pvt != NULL)
mail_index_view_close(&t->view_pvt);
mail_cache_view_close(&t->cache_view);
mail_index_view_close(&t->view);
if (array_is_created(&t->pvt_saves))
array_free(&t->pvt_saves);
array_free(&t->module_contexts);
i_free(t->reason);
i_free(t);
}
static int
index_transaction_index_commit(struct mail_index_transaction *index_trans,
struct mail_index_transaction_commit_result *result_r)
{
struct mailbox_transaction_context *t =
MAIL_STORAGE_CONTEXT_REQUIRE(index_trans);
struct index_mailbox_sync_pvt_context *pvt_sync_ctx = NULL;
const char *error;
int ret = 0;
index_pop3_uidl_update_exists_finish(t);
if (t->attr_pvt_trans != NULL) {
if (dict_transaction_commit(&t->attr_pvt_trans, &error) < 0) {
mailbox_set_critical(t->box,
"Dict private transaction commit failed: %s", error);
ret = -1;
}
}
if (t->attr_shared_trans != NULL) {
if (dict_transaction_commit(&t->attr_shared_trans, &error) < 0) {
mailbox_set_critical(t->box,
"Dict shared transaction commit failed: %s", error);
ret = -1;
}
}
if (t->save_ctx != NULL) {
mailbox_save_context_deinit(t->save_ctx);
if (ret < 0) {
t->box->v.transaction_save_rollback(t->save_ctx);
t->save_ctx = NULL;
} else if (t->box->v.transaction_save_commit_pre(t->save_ctx) < 0) {
t->save_ctx = NULL;
ret = -1;
}
}
if (array_is_created(&t->pvt_saves)) {
if (index_mailbox_sync_pvt_init(t->box, TRUE, 0, &pvt_sync_ctx) < 0)
ret = -1;
}
i_assert(t->mail_ref_count == 0);
if (ret < 0)
t->super.rollback(index_trans);
else {
if (t->super.commit(index_trans, result_r) < 0) {
mailbox_set_index_error(t->box);
ret = -1;
} else {
t->changes->changes_mask = result_r->changes_mask;
}
}
if (t->save_ctx != NULL) {
i_assert(t->save_ctx->dest_mail == NULL);
t->box->v.transaction_save_commit_post(t->save_ctx, result_r);
}
if (pvt_sync_ctx != NULL) {
if (index_mailbox_sync_pvt_newmails(pvt_sync_ctx, t) < 0) {
/* failed to add private flags. a bit too late to
return failure though, so just ignore silently */
}
index_mailbox_sync_pvt_deinit(&pvt_sync_ctx);
}
if (ret < 0)
mail_index_set_error_nolog(t->box->index, mailbox_get_last_error(t->box, NULL));
index_transaction_free(t);
return ret;
}
static void
index_transaction_index_rollback(struct mail_index_transaction *index_trans)
{
struct mailbox_transaction_context *t =
MAIL_STORAGE_CONTEXT_REQUIRE(index_trans);
dict_transaction_rollback(&t->attr_pvt_trans);
dict_transaction_rollback(&t->attr_shared_trans);
if (t->save_ctx != NULL) {
mailbox_save_context_deinit(t->save_ctx);
t->box->v.transaction_save_rollback(t->save_ctx);
}
i_assert(t->mail_ref_count == 0);
t->super.rollback(index_trans);
index_transaction_free(t);
}
static enum mail_index_transaction_flags
index_transaction_flags_get(enum mailbox_transaction_flags flags)
{
enum mail_index_transaction_flags itrans_flags;
itrans_flags = MAIL_INDEX_TRANSACTION_FLAG_AVOID_FLAG_UPDATES;
if ((flags & MAILBOX_TRANSACTION_FLAG_HIDE) != 0)
itrans_flags |= MAIL_INDEX_TRANSACTION_FLAG_HIDE;
if ((flags & MAILBOX_TRANSACTION_FLAG_EXTERNAL) != 0)
itrans_flags |= MAIL_INDEX_TRANSACTION_FLAG_EXTERNAL;
if ((flags & MAILBOX_TRANSACTION_FLAG_SYNC) != 0)
itrans_flags |= MAIL_INDEX_TRANSACTION_FLAG_SYNC;
return itrans_flags;
}
void index_transaction_init_pvt(struct mailbox_transaction_context *t)
{
enum mail_index_transaction_flags itrans_flags;
if (t->box->view_pvt == NULL || t->itrans_pvt != NULL)
return;
itrans_flags = index_transaction_flags_get(t->flags);
t->itrans_pvt = mail_index_transaction_begin(t->box->view_pvt,
itrans_flags);
t->view_pvt = mail_index_transaction_open_updated_view(t->itrans_pvt);
}
void index_transaction_init(struct mailbox_transaction_context *t,
struct mailbox *box,
enum mailbox_transaction_flags flags,
const char *reason)
{
enum mail_index_transaction_flags itrans_flags;
i_assert(box->opened);
itrans_flags = index_transaction_flags_get(flags);
if ((flags & MAILBOX_TRANSACTION_FLAG_REFRESH) != 0)
mail_index_refresh(box->index);
t->flags = flags;
t->box = box;
t->reason = i_strdup(reason);
t->itrans = mail_index_transaction_begin(box->view, itrans_flags);
t->view = mail_index_transaction_open_updated_view(t->itrans);
array_create(&t->module_contexts, default_pool,
sizeof(void *), 5);
t->cache_view = mail_cache_view_open(box->cache, t->view);
t->cache_trans = mail_cache_get_transaction(t->cache_view, t->itrans);
if ((flags & MAILBOX_TRANSACTION_FLAG_NO_CACHE_DEC) != 0)
mail_cache_view_update_cache_decisions(t->cache_view, FALSE);
/* set up after mail_cache_get_transaction(), so that we'll still
have the cache_trans available in _index_commit() */
t->super = t->itrans->v;
t->itrans->v.commit = index_transaction_index_commit;
t->itrans->v.rollback = index_transaction_index_rollback;
MODULE_CONTEXT_SET(t->itrans, mail_storage_mail_index_module, t);
}
struct mailbox_transaction_context *
index_transaction_begin(struct mailbox *box,
enum mailbox_transaction_flags flags,
const char *reason)
{
struct mailbox_transaction_context *t;
t = i_new(struct mailbox_transaction_context, 1);
index_transaction_init(t, box, flags, reason);
return t;
}
int index_transaction_commit(struct mailbox_transaction_context *t,
struct mail_transaction_commit_changes *changes_r)
{
struct mailbox *box = t->box;
struct mail_index_transaction *itrans = t->itrans;
struct mail_index_transaction_commit_result result;
int ret = 0;
i_zero(changes_r);
changes_r->pool = pool_alloconly_create(MEMPOOL_GROWING
"transaction changes", 512);
p_array_init(&changes_r->saved_uids, changes_r->pool, 32);
t->changes = changes_r;
if (t->itrans_pvt != NULL)
ret = mail_index_transaction_commit(&t->itrans_pvt);
if (mail_index_transaction_commit_full(&itrans, &result) < 0)
ret = -1;
t = NULL;
if (ret < 0 && mail_index_is_deleted(box->index))
mailbox_set_deleted(box);
changes_r->ignored_modseq_changes = result.ignored_modseq_changes;
return ret;
}
void index_transaction_rollback(struct mailbox_transaction_context *t)
{
struct mail_index_transaction *itrans = t->itrans;
if (t->itrans_pvt != NULL)
mail_index_transaction_rollback(&t->itrans_pvt);
mail_index_transaction_rollback(&itrans);
}
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