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imapc-storage.c
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imapc-storage.c
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/* Copyright (c) 2011-2017 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "ioloop.h"
#include "str.h"
#include "imap-arg.h"
#include "imap-resp-code.h"
#include "mailbox-tree.h"
#include "imapc-connection.h"
#include "imapc-msgmap.h"
#include "imapc-mail.h"
#include "imapc-list.h"
#include "imapc-search.h"
#include "imapc-sync.h"
#include "imapc-settings.h"
#include "imapc-storage.h"
#define DNS_CLIENT_SOCKET_NAME "dns-client"
struct imapc_open_context {
struct imapc_mailbox *mbox;
int ret;
};
struct imapc_resp_code_map {
const char *code;
enum mail_error error;
};
extern struct mail_storage imapc_storage;
extern struct mailbox imapc_mailbox;
static struct imapc_resp_code_map imapc_resp_code_map[] = {
{ IMAP_RESP_CODE_UNAVAILABLE, MAIL_ERROR_TEMP },
{ IMAP_RESP_CODE_AUTHFAILED, MAIL_ERROR_PERM },
{ IMAP_RESP_CODE_AUTHZFAILED, MAIL_ERROR_PERM },
{ IMAP_RESP_CODE_EXPIRED, MAIL_ERROR_PERM },
{ IMAP_RESP_CODE_PRIVACYREQUIRED, MAIL_ERROR_PERM },
{ IMAP_RESP_CODE_CONTACTADMIN, MAIL_ERROR_PERM },
{ IMAP_RESP_CODE_NOPERM, MAIL_ERROR_PERM },
{ IMAP_RESP_CODE_INUSE, MAIL_ERROR_INUSE },
{ IMAP_RESP_CODE_EXPUNGEISSUED, MAIL_ERROR_EXPUNGED },
{ IMAP_RESP_CODE_CORRUPTION, MAIL_ERROR_TEMP },
{ IMAP_RESP_CODE_SERVERBUG, MAIL_ERROR_TEMP },
/* { IMAP_RESP_CODE_CLIENTBUG, 0 }, */
{ IMAP_RESP_CODE_CANNOT, MAIL_ERROR_NOTPOSSIBLE },
{ IMAP_RESP_CODE_LIMIT, MAIL_ERROR_LIMIT },
{ IMAP_RESP_CODE_OVERQUOTA, MAIL_ERROR_NOQUOTA },
{ IMAP_RESP_CODE_ALREADYEXISTS, MAIL_ERROR_EXISTS },
{ IMAP_RESP_CODE_NONEXISTENT, MAIL_ERROR_NOTFOUND }
};
static void imapc_untagged_status(const struct imapc_untagged_reply *reply,
struct imapc_storage_client *client);
static void imapc_untagged_namespace(const struct imapc_untagged_reply *reply,
struct imapc_storage_client *client);
static int imapc_mailbox_run_status(struct mailbox *box,
enum mailbox_status_items items,
struct mailbox_status *status_r);
bool imap_resp_text_code_parse(const char *str, enum mail_error *error_r)
{
unsigned int i;
if (str == NULL)
return FALSE;
for (i = 0; i < N_ELEMENTS(imapc_resp_code_map); i++) {
if (strcmp(imapc_resp_code_map[i].code, str) == 0) {
*error_r = imapc_resp_code_map[i].error;
return TRUE;
}
}
return FALSE;
}
bool imapc_mailbox_has_modseqs(struct imapc_mailbox *mbox)
{
return (mbox->capabilities & (IMAPC_CAPABILITY_CONDSTORE |
IMAPC_CAPABILITY_QRESYNC)) != 0 &&
IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_MODSEQ);
}
static struct mail_storage *imapc_storage_alloc(void)
{
struct imapc_storage *storage;
pool_t pool;
pool = pool_alloconly_create("imapc storage", 2048);
storage = p_new(pool, struct imapc_storage, 1);
storage->storage = imapc_storage;
storage->storage.pool = pool;
storage->root_ioloop = current_ioloop;
return &storage->storage;
}
void imapc_copy_error_from_reply(struct imapc_storage *storage,
enum mail_error default_error,
const struct imapc_command_reply *reply)
{
enum mail_error error;
if (imap_resp_text_code_parse(reply->resp_text_key, &error)) {
mail_storage_set_error(&storage->storage, error,
reply->text_without_resp);
} else {
mail_storage_set_error(&storage->storage, default_error,
reply->text_without_resp);
}
}
void imapc_simple_context_init(struct imapc_simple_context *sctx,
struct imapc_storage_client *client)
{
i_zero(sctx);
sctx->client = client;
sctx->ret = -2;
}
void imapc_simple_run(struct imapc_simple_context *sctx)
{
if (sctx->client->auth_failed) {
imapc_client_logout(sctx->client->client);
sctx->ret = -1;
}
while (sctx->ret == -2)
imapc_client_run(sctx->client->client);
}
void imapc_mailbox_run(struct imapc_mailbox *mbox)
{
imapc_mail_fetch_flush(mbox);
imapc_mailbox_run_nofetch(mbox);
}
void imapc_mailbox_run_nofetch(struct imapc_mailbox *mbox)
{
do {
imapc_client_run(mbox->storage->client->client);
} while (mbox->storage->reopen_count > 0);
}
void imapc_simple_callback(const struct imapc_command_reply *reply,
void *context)
{
struct imapc_simple_context *ctx = context;
if (reply->state == IMAPC_COMMAND_STATE_OK)
ctx->ret = 0;
else if (reply->state == IMAPC_COMMAND_STATE_NO) {
imapc_copy_error_from_reply(ctx->client->_storage,
MAIL_ERROR_PARAMS, reply);
ctx->ret = -1;
} else if (ctx->client->auth_failed) {
ctx->ret = -1;
} else if (reply->state == IMAPC_COMMAND_STATE_DISCONNECTED) {
mail_storage_set_internal_error(&ctx->client->_storage->storage);
ctx->ret = -1;
} else {
mail_storage_set_critical(&ctx->client->_storage->storage,
"imapc: Command failed: %s", reply->text_full);
ctx->ret = -1;
}
imapc_client_stop(ctx->client->client);
}
void imapc_mailbox_noop(struct imapc_mailbox *mbox)
{
struct imapc_command *cmd;
struct imapc_simple_context sctx;
if (mbox->client_box == NULL) {
/* mailbox opening hasn't finished yet */
return;
}
imapc_simple_context_init(&sctx, mbox->storage->client);
cmd = imapc_client_mailbox_cmd(mbox->client_box,
imapc_simple_callback, &sctx);
imapc_command_send(cmd, "NOOP");
imapc_simple_run(&sctx);
}
static void
imapc_storage_client_untagged_cb(const struct imapc_untagged_reply *reply,
void *context)
{
struct imapc_storage_client *client = context;
struct imapc_mailbox *mbox = reply->untagged_box_context;
const struct imapc_storage_event_callback *cb;
const struct imapc_mailbox_event_callback *mcb;
array_foreach(&client->untagged_callbacks, cb) {
if (strcasecmp(reply->name, cb->name) == 0)
cb->callback(reply, client);
}
if (mbox == NULL)
return;
array_foreach(&mbox->untagged_callbacks, mcb) {
if (strcasecmp(reply->name, mcb->name) == 0)
mcb->callback(reply, mbox);
}
if (reply->resp_text_key != NULL) {
array_foreach(&mbox->resp_text_callbacks, mcb) {
if (strcasecmp(reply->resp_text_key, mcb->name) == 0)
mcb->callback(reply, mbox);
}
}
}
static void
imapc_storage_client_login_callback(const struct imapc_command_reply *reply,
void *context)
{
struct imapc_storage_client *client = context;
client->auth_returned = TRUE;
imapc_client_stop(client->client);
if (reply->state == IMAPC_COMMAND_STATE_OK)
return;
if (client->destroying &&
reply->state == IMAPC_COMMAND_STATE_DISCONNECTED) {
/* user's work was finished before imapc login finished -
it's not an error */
return;
}
client->auth_failed = TRUE;
client->auth_error = i_strdup(reply->text_full);
if (client->_storage != NULL) {
if (reply->state == IMAPC_COMMAND_STATE_DISCONNECTED)
mail_storage_set_internal_error(&client->_storage->storage);
else {
mail_storage_set_error(&client->_storage->storage,
MAIL_ERROR_PERM, reply->text_full);
}
}
if (client->_list != NULL) {
if (reply->state == IMAPC_COMMAND_STATE_DISCONNECTED)
mailbox_list_set_internal_error(&client->_list->list);
else {
mailbox_list_set_error(&client->_list->list,
MAIL_ERROR_PERM, reply->text_full);
}
}
}
static void imapc_storage_client_login(struct imapc_storage_client *client,
struct mail_user *user, const char *host)
{
imapc_client_login(client->client);
if (!user->namespaces_created) {
/* we're still initializing the user. wait for the
login to finish, so we can fail the user creation
if it fails. */
while (!client->auth_returned)
imapc_client_run(client->client);
if (client->auth_failed) {
user->error = p_strdup_printf(user->pool,
"imapc: Login to %s failed: %s",
host, client->auth_error);
}
}
}
int imapc_storage_client_create(struct mail_namespace *ns,
const struct imapc_settings *imapc_set,
const struct mail_storage_settings *mail_set,
struct imapc_storage_client **client_r,
const char **error_r)
{
struct imapc_storage_client *client;
struct imapc_client_settings set;
string_t *str;
i_zero(&set);
set.host = imapc_set->imapc_host;
if (*set.host == '\0') {
*error_r = "missing imapc_host";
return -1;
}
set.port = imapc_set->imapc_port;
if (imapc_set->imapc_user[0] != '\0')
set.username = imapc_set->imapc_user;
else if (ns->owner != NULL)
set.username = ns->owner->username;
else
set.username = ns->user->username;
set.master_user = imapc_set->imapc_master_user;
set.password = imapc_set->imapc_password;
if (*set.password == '\0') {
*error_r = "missing imapc_password";
return -1;
}
set.sasl_mechanisms = imapc_set->imapc_sasl_mechanisms;
set.use_proxyauth = (imapc_set->parsed_features & IMAPC_FEATURE_PROXYAUTH) != 0;
set.cmd_timeout_msecs = imapc_set->imapc_cmd_timeout * 1000;
set.connect_retry_count = imapc_set->imapc_connection_retry_count;
set.connect_retry_interval_msecs = imapc_set->imapc_connection_retry_interval*1000;
set.max_idle_time = imapc_set->imapc_max_idle_time;
set.max_line_length = imapc_set->imapc_max_line_length;
set.dns_client_socket_path = *ns->user->set->base_dir == '\0' ? "" :
t_strconcat(ns->user->set->base_dir, "/",
DNS_CLIENT_SOCKET_NAME, NULL);
set.debug = mail_set->mail_debug;
set.rawlog_dir = mail_user_home_expand(ns->user,
imapc_set->imapc_rawlog_dir);
str = t_str_new(128);
mail_user_set_get_temp_prefix(str, ns->user->set);
set.temp_path_prefix = str_c(str);
set.ssl_ca_dir = mail_set->ssl_client_ca_dir;
set.ssl_ca_file = mail_set->ssl_client_ca_file;
set.ssl_verify = imapc_set->imapc_ssl_verify;
if (strcmp(imapc_set->imapc_ssl, "imaps") == 0)
set.ssl_mode = IMAPC_CLIENT_SSL_MODE_IMMEDIATE;
else if (strcmp(imapc_set->imapc_ssl, "starttls") == 0)
set.ssl_mode = IMAPC_CLIENT_SSL_MODE_STARTTLS;
else
set.ssl_mode = IMAPC_CLIENT_SSL_MODE_NONE;
set.ssl_crypto_device = mail_set->ssl_crypto_device;
set.throttle_set.init_msecs = imapc_set->throttle_init_msecs;
set.throttle_set.max_msecs = imapc_set->throttle_max_msecs;
set.throttle_set.shrink_min_msecs = imapc_set->throttle_shrink_min_msecs;
client = i_new(struct imapc_storage_client, 1);
client->refcount = 1;
i_array_init(&client->untagged_callbacks, 16);
client->client = imapc_client_init(&set);
imapc_client_register_untagged(client->client,
imapc_storage_client_untagged_cb, client);
imapc_client_set_login_callback(client->client, imapc_storage_client_login_callback, client);
if ((ns->flags & NAMESPACE_FLAG_LIST_PREFIX) != 0 &&
(imapc_set->parsed_features & IMAPC_FEATURE_DELAY_LOGIN) == 0) {
/* start logging in immediately */
imapc_storage_client_login(client, ns->user, set.host);
}
*client_r = client;
return 0;
}
void imapc_storage_client_unref(struct imapc_storage_client **_client)
{
struct imapc_storage_client *client = *_client;
struct imapc_storage_event_callback *cb;
*_client = NULL;
i_assert(client->refcount > 0);
if (--client->refcount > 0)
return;
imapc_client_deinit(&client->client);
array_foreach_modifiable(&client->untagged_callbacks, cb)
i_free(cb->name);
array_free(&client->untagged_callbacks);
i_free(client->auth_error);
i_free(client);
}
static int
imapc_storage_create(struct mail_storage *_storage,
struct mail_namespace *ns,
const char **error_r)
{
struct imapc_storage *storage = (struct imapc_storage *)_storage;
struct imapc_mailbox_list *imapc_list = NULL;
storage->set = mail_namespace_get_driver_settings(ns, _storage);
/* serialize all the settings */
_storage->unique_root_dir = p_strdup_printf(_storage->pool,
"%s%s://(%s|%s):%s@%s:%u/%s mechs:%s features:%s "
"rawlog:%s cmd_timeout:%u maxidle:%u maxline:%"PRIuSIZE_T"u "
"pop3delflg:%s root_dir:%s",
storage->set->imapc_ssl,
storage->set->imapc_ssl_verify ? "(verify)" : "",
storage->set->imapc_user,
storage->set->imapc_master_user,
storage->set->imapc_password,
storage->set->imapc_host,
storage->set->imapc_port,
storage->set->imapc_list_prefix,
storage->set->imapc_sasl_mechanisms,
storage->set->imapc_features,
storage->set->imapc_rawlog_dir,
storage->set->imapc_cmd_timeout,
storage->set->imapc_max_idle_time,
(size_t) storage->set->imapc_max_line_length,
storage->set->pop3_deleted_flag,
ns->list->set.root_dir);
if (strcmp(ns->list->name, MAILBOX_LIST_NAME_IMAPC) == 0) {
imapc_list = (struct imapc_mailbox_list *)ns->list;
storage->client = imapc_list->client;
storage->client->refcount++;
} else {
if (imapc_storage_client_create(ns, storage->set, _storage->set,
&storage->client, error_r) < 0)
return -1;
}
storage->client->_storage = storage;
p_array_init(&storage->remote_namespaces, _storage->pool, 4);
if (IMAPC_HAS_FEATURE(storage, IMAPC_FEATURE_FETCH_BODYSTRUCTURE)) {
_storage->nonbody_access_fields |=
MAIL_FETCH_IMAP_BODY | MAIL_FETCH_IMAP_BODYSTRUCTURE;
}
imapc_storage_client_register_untagged(storage->client, "STATUS",
imapc_untagged_status);
imapc_storage_client_register_untagged(storage->client, "NAMESPACE",
imapc_untagged_namespace);
return 0;
}
static void imapc_storage_destroy(struct mail_storage *_storage)
{
struct imapc_storage *storage = (struct imapc_storage *)_storage;
storage->client->destroying = TRUE;
/* make sure all pending commands are aborted before anything is
deinitialized */
imapc_client_logout(storage->client->client);
imapc_storage_client_unref(&storage->client);
index_storage_destroy(_storage);
}
void imapc_storage_client_register_untagged(struct imapc_storage_client *client,
const char *name,
imapc_storage_callback_t *callback)
{
struct imapc_storage_event_callback *cb;
cb = array_append_space(&client->untagged_callbacks);
cb->name = i_strdup(name);
cb->callback = callback;
}
static void
imapc_storage_get_list_settings(const struct mail_namespace *ns ATTR_UNUSED,
struct mailbox_list_settings *set)
{
if (set->layout == NULL)
set->layout = MAILBOX_LIST_NAME_IMAPC;
set->escape_char = IMAPC_LIST_ESCAPE_CHAR;
}
static struct mailbox *
imapc_mailbox_alloc(struct mail_storage *storage, struct mailbox_list *list,
const char *vname, enum mailbox_flags flags)
{
struct imapc_mailbox *mbox;
pool_t pool;
pool = pool_alloconly_create("imapc mailbox", 1024*4);
mbox = p_new(pool, struct imapc_mailbox, 1);
mbox->box = imapc_mailbox;
mbox->box.pool = pool;
mbox->box.storage = storage;
mbox->box.list = list;
mbox->box.mail_vfuncs = &imapc_mail_vfuncs;
index_storage_mailbox_alloc(&mbox->box, vname, flags, MAIL_INDEX_PREFIX);
mbox->storage = (struct imapc_storage *)storage;
p_array_init(&mbox->untagged_callbacks, pool, 16);
p_array_init(&mbox->resp_text_callbacks, pool, 16);
p_array_init(&mbox->fetch_requests, pool, 16);
p_array_init(&mbox->delayed_expunged_uids, pool, 16);
mbox->pending_fetch_cmd = str_new(pool, 128);
mbox->prev_mail_cache.fd = -1;
imapc_mailbox_register_callbacks(mbox);
return &mbox->box;
}
const char *imapc_mailbox_get_remote_name(struct imapc_mailbox *mbox)
{
if (strcmp(mbox->box.list->name, MAILBOX_LIST_NAME_IMAPC) != 0)
return mbox->box.name;
return imapc_list_to_remote((struct imapc_mailbox_list *)mbox->box.list,
mbox->box.name);
}
static int
imapc_mailbox_exists(struct mailbox *box, bool auto_boxes ATTR_UNUSED,
enum mailbox_existence *existence_r)
{
if (strcmp(box->list->name, MAILBOX_LIST_NAME_IMAPC) != 0) {
if (box->inbox_any)
*existence_r = MAILBOX_EXISTENCE_SELECT;
else
*existence_r = MAILBOX_EXISTENCE_NONE;
return 0;
}
enum mailbox_info_flags flags;
struct imapc_mailbox_list *list = (struct imapc_mailbox_list *)box->list;
if (list->client->auth_failed) {
mail_storage_copy_list_error(box->storage, box->list);
return -1;
}
if (imapc_list_get_mailbox_flags(box->list, box->name, &flags) < 0) {
mail_storage_copy_list_error(box->storage, box->list);
return -1;
}
if ((flags & MAILBOX_NONEXISTENT) != 0)
*existence_r = MAILBOX_EXISTENCE_NONE;
else if ((flags & MAILBOX_NOSELECT) != 0)
*existence_r = MAILBOX_EXISTENCE_NOSELECT;
else
*existence_r = MAILBOX_EXISTENCE_SELECT;
return 0;
}
static bool imapc_mailbox_want_examine(struct imapc_mailbox *mbox)
{
if (IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_NO_EXAMINE)) {
/* mainly a Courier-workaround: With POP3-only Maildir that
doesn't have UIDVALIDITY set, EXAMINE won't generate a
permanent UIDVALIDITY while SELECT will. */
return FALSE;
}
return (mbox->box.flags & MAILBOX_FLAG_DROP_RECENT) == 0 &&
((mbox->box.flags & MAILBOX_FLAG_READONLY) != 0 ||
(mbox->box.flags & MAILBOX_FLAG_SAVEONLY) != 0);
}
static void
imapc_mailbox_reopen_callback(const struct imapc_command_reply *reply,
void *context)
{
struct imapc_mailbox *mbox = context;
i_assert(mbox->storage->reopen_count > 0);
mbox->storage->reopen_count--;
mbox->selecting = FALSE;
if (reply->state != IMAPC_COMMAND_STATE_OK) {
const char *errmsg = t_strdup_printf(
"Reopening mailbox '%s' failed: %s",
mbox->box.name, reply->text_full);
imapc_client_mailbox_reconnect(mbox->client_box, errmsg);
}
imapc_client_stop(mbox->storage->client->client);
}
static void imapc_mailbox_reopen(void *context)
{
struct imapc_mailbox *mbox = context;
struct imapc_command *cmd;
/* we're reconnecting and need to reopen the mailbox */
mbox->prev_skipped_rseq = 0;
mbox->prev_skipped_uid = 0;
imapc_msgmap_reset(imapc_client_mailbox_get_msgmap(mbox->client_box));
if (mbox->selecting) {
/* We reconnected during the initial SELECT/EXAMINE. It'll be
automatically resent by lib-imap-client, so we don't need to
send it again here. */
i_assert(!mbox->initial_sync_done);
return;
}
mbox->initial_sync_done = FALSE;
mbox->selecting = TRUE;
cmd = imapc_client_mailbox_cmd(mbox->client_box,
imapc_mailbox_reopen_callback, mbox);
imapc_command_set_flags(cmd, IMAPC_COMMAND_FLAG_SELECT);
if (imapc_mailbox_want_examine(mbox)) {
imapc_command_sendf(cmd, "EXAMINE %s",
imapc_mailbox_get_remote_name(mbox));
} else {
imapc_command_sendf(cmd, "SELECT %s",
imapc_mailbox_get_remote_name(mbox));
}
mbox->storage->reopen_count++;
if (mbox->syncing)
imapc_sync_mailbox_reopened(mbox);
}
static void
imapc_mailbox_open_callback(const struct imapc_command_reply *reply,
void *context)
{
struct imapc_open_context *ctx = context;
ctx->mbox->selecting = FALSE;
ctx->mbox->selected = TRUE;
if (reply->state == IMAPC_COMMAND_STATE_OK)
ctx->ret = 0;
else if (reply->state == IMAPC_COMMAND_STATE_NO) {
imapc_copy_error_from_reply(ctx->mbox->storage,
MAIL_ERROR_NOTFOUND, reply);
ctx->ret = -1;
} else if (ctx->mbox->storage->client->auth_failed) {
ctx->ret = -1;
} else if (reply->state == IMAPC_COMMAND_STATE_DISCONNECTED) {
ctx->ret = -1;
mail_storage_set_internal_error(ctx->mbox->box.storage);
} else {
mail_storage_set_critical(ctx->mbox->box.storage,
"imapc: Opening mailbox '%s' failed: %s",
ctx->mbox->box.name, reply->text_full);
ctx->ret = -1;
}
imapc_client_stop(ctx->mbox->storage->client->client);
}
static int imapc_mailbox_get_capabilities(struct imapc_mailbox *mbox)
{
return imapc_client_get_capabilities(mbox->storage->client->client,
&mbox->capabilities);
}
static void imapc_mailbox_get_extensions(struct imapc_mailbox *mbox)
{
if (mbox->guid_fetch_field_name == NULL) {
/* see if we can get message GUIDs somehow */
if ((mbox->capabilities & IMAPC_CAPABILITY_X_GM_EXT_1) != 0) {
/* GMail */
mbox->guid_fetch_field_name = "X-GM-MSGID";
}
}
}
int imapc_mailbox_select(struct imapc_mailbox *mbox)
{
struct imapc_command *cmd;
struct imapc_open_context ctx;
i_assert(mbox->client_box == NULL);
/* If authentication failed, don't check again. */
if (mbox->storage->client->auth_failed) {
return -1;
}
if (imapc_mailbox_get_capabilities(mbox) < 0)
return -1;
if (imapc_mailbox_has_modseqs(mbox)) {
if (!array_is_created(&mbox->rseq_modseqs))
i_array_init(&mbox->rseq_modseqs, 32);
else
array_clear(&mbox->rseq_modseqs);
}
mbox->client_box =
imapc_client_mailbox_open(mbox->storage->client->client, mbox);
imapc_client_mailbox_set_reopen_cb(mbox->client_box,
imapc_mailbox_reopen, mbox);
imapc_mailbox_get_extensions(mbox);
mbox->selecting = TRUE;
ctx.mbox = mbox;
ctx.ret = -2;
cmd = imapc_client_mailbox_cmd(mbox->client_box,
imapc_mailbox_open_callback, &ctx);
imapc_command_set_flags(cmd, IMAPC_COMMAND_FLAG_SELECT |
IMAPC_COMMAND_FLAG_RETRIABLE);
if (imapc_mailbox_want_examine(mbox)) {
imapc_command_sendf(cmd, "EXAMINE %s",
imapc_mailbox_get_remote_name(mbox));
} else {
imapc_command_sendf(cmd, "SELECT %s",
imapc_mailbox_get_remote_name(mbox));
}
while (ctx.ret == -2)
imapc_mailbox_run(mbox);
return ctx.ret;
}
static int imapc_mailbox_open(struct mailbox *box)
{
struct imapc_mailbox *mbox = (struct imapc_mailbox *)box;
if (index_storage_mailbox_open(box, FALSE) < 0)
return -1;
if (box->deleting || (box->flags & MAILBOX_FLAG_SAVEONLY) != 0) {
/* We don't actually want to SELECT the mailbox. */
return 0;
}
if (*box->name == '\0' &&
(box->list->ns->flags & NAMESPACE_FLAG_INBOX_ANY) != 0) {
/* trying to open INBOX as the namespace prefix.
Don't allow this. */
mail_storage_set_error(box->storage, MAIL_ERROR_NOTFOUND,
"Mailbox isn't selectable");
mailbox_close(box);
return -1;
}
if (imapc_mailbox_select(mbox) < 0) {
mailbox_close(box);
return -1;
}
return 0;
}
void imapc_mail_cache_free(struct imapc_mail_cache *cache)
{
if (cache->fd != -1) {
if (close(cache->fd) < 0)
i_error("close(imapc cached mail) failed: %m");
cache->fd = -1;
}
if (cache->buf != NULL)
buffer_free(&cache->buf);
cache->uid = 0;
}
static void imapc_mailbox_close(struct mailbox *box)
{
struct imapc_mailbox *mbox = (struct imapc_mailbox *)box;
bool changes;
(void)imapc_mailbox_commit_delayed_trans(mbox, &changes);
imapc_mail_fetch_flush(mbox);
if (mbox->client_box != NULL)
imapc_client_mailbox_close(&mbox->client_box);
if (array_is_created(&mbox->rseq_modseqs))
array_free(&mbox->rseq_modseqs);
if (mbox->sync_view != NULL)
mail_index_view_close(&mbox->sync_view);
if (mbox->to_idle_delay != NULL)
timeout_remove(&mbox->to_idle_delay);
if (mbox->to_idle_check != NULL)
timeout_remove(&mbox->to_idle_check);
imapc_mail_cache_free(&mbox->prev_mail_cache);
index_storage_mailbox_close(box);
}
static int
imapc_mailbox_create(struct mailbox *box,
const struct mailbox_update *update ATTR_UNUSED,
bool directory)
{
struct imapc_mailbox *mbox = (struct imapc_mailbox *)box;
struct imapc_command *cmd;
struct imapc_simple_context sctx;
const char *name = imapc_mailbox_get_remote_name(mbox);
if (!directory)
;
else if (strcmp(box->list->name, MAILBOX_LIST_NAME_IMAPC) == 0) {
struct imapc_mailbox_list *imapc_list =
(struct imapc_mailbox_list *)box->list;
name = t_strdup_printf("%s%c", name, imapc_list->root_sep);
} else {
name = t_strdup_printf("%s%c", name,
mailbox_list_get_hierarchy_sep(box->list));
}
imapc_simple_context_init(&sctx, mbox->storage->client);
cmd = imapc_client_cmd(mbox->storage->client->client,
imapc_simple_callback, &sctx);
imapc_command_sendf(cmd, "CREATE %s", name);
imapc_simple_run(&sctx);
return sctx.ret;
}
static int imapc_mailbox_update(struct mailbox *box,
const struct mailbox_update *update)
{
if (!guid_128_is_empty(update->mailbox_guid) ||
update->uid_validity != 0 || update->min_next_uid != 0 ||
update->min_first_recent_uid != 0) {
mail_storage_set_error(box->storage, MAIL_ERROR_NOTPOSSIBLE,
"Not supported");
}
return index_storage_mailbox_update(box, update);
}
static void imapc_untagged_status(const struct imapc_untagged_reply *reply,
struct imapc_storage_client *client)
{
struct imapc_storage *storage = client->_storage;
struct mailbox_status *status;
const struct imap_arg *list;
const char *name, *key, *value;
uint32_t num;
unsigned int i;
if (!imap_arg_get_astring(&reply->args[0], &name) ||
!imap_arg_get_list(&reply->args[1], &list))
return;
if (storage->cur_status_box == NULL)
return;
if (strcmp(storage->cur_status_box->box.name, name) == 0) {
/* match */
} else if (strcasecmp(storage->cur_status_box->box.name, "INBOX") == 0 &&
strcasecmp(name, "INBOX") == 0) {
/* case-insensitive INBOX */
} else {
return;
}
status = storage->cur_status;
for (i = 0; list[i].type != IMAP_ARG_EOL; i += 2) {
if (!imap_arg_get_atom(&list[i], &key) ||
!imap_arg_get_atom(&list[i+1], &value) ||
str_to_uint32(value, &num) < 0)
return;
if (strcasecmp(key, "MESSAGES") == 0)
status->messages = num;
else if (strcasecmp(key, "RECENT") == 0)
status->recent = num;
else if (strcasecmp(key, "UIDNEXT") == 0)
status->uidnext = num;
else if (strcasecmp(key, "UIDVALIDITY") == 0)
status->uidvalidity = num;
else if (strcasecmp(key, "UNSEEN") == 0)
status->unseen = num;
else if (strcasecmp(key, "HIGHESTMODSEQ") == 0 &&
imapc_mailbox_has_modseqs(storage->cur_status_box))
status->highest_modseq = num;
}
}
static void imapc_untagged_namespace(const struct imapc_untagged_reply *reply,
struct imapc_storage_client *client)
{
struct imapc_storage *storage = client->_storage;
static enum mail_namespace_type ns_types[] = {
MAIL_NAMESPACE_TYPE_PRIVATE,
MAIL_NAMESPACE_TYPE_SHARED,
MAIL_NAMESPACE_TYPE_PUBLIC
};
struct imapc_namespace *ns;
const struct imap_arg *list, *list2;
const char *prefix, *sep;
unsigned int i;
array_clear(&storage->remote_namespaces);
for (i = 0; i < N_ELEMENTS(ns_types); i++) {
if (reply->args[i].type == IMAP_ARG_NIL)
continue;
if (!imap_arg_get_list(&reply->args[i], &list))
break;
for (; list->type != IMAP_ARG_EOL; list++) {
if (!imap_arg_get_list(list, &list2) ||
!imap_arg_get_astring(&list2[0], &prefix) ||
!imap_arg_get_nstring(&list2[1], &sep))
break;
ns = array_append_space(&storage->remote_namespaces);
ns->prefix = p_strdup(storage->storage.pool, prefix);
ns->separator = sep == NULL ? '\0' : sep[0];
ns->type = ns_types[i];
}
}
}
static int imapc_mailbox_get_selected_status(struct imapc_mailbox *mbox,
enum mailbox_status_items items,
struct mailbox_status *status_r)
{
int ret = 0;
index_storage_get_open_status(&mbox->box, items, status_r);
if ((items & STATUS_PERMANENT_FLAGS) != 0)
status_r->permanent_flags = mbox->permanent_flags;
if ((items & STATUS_FIRST_RECENT_UID) != 0)
status_r->first_recent_uid = mbox->highest_nonrecent_uid + 1;
if ((items & STATUS_HIGHESTMODSEQ) != 0) {
/* FIXME: this doesn't work perfectly. we're now just returning
the HIGHESTMODSEQ from the current index, which may or may
not be correct. with QRESYNC enabled we could be returning
sync_highestmodseq, but that would require implementing
VANISHED replies. and without QRESYNC we'd have to issue
STATUS (HIGHESTMODSEQ), which isn't efficient since we get
here constantly (after every IMAP command). */
}
if (imapc_mailbox_has_modseqs(mbox)) {
/* even if local indexes are only in memory, we still
have modseqs on the IMAP server itself. */
status_r->nonpermanent_modseqs = FALSE;
}
return ret;
}
static int imapc_mailbox_delete(struct mailbox *box)
{
box->delete_skip_empty_check = TRUE;
return index_storage_mailbox_delete(box);
}
static int imapc_mailbox_run_status(struct mailbox *box,
enum mailbox_status_items items,
struct mailbox_status *status_r)
{
struct imapc_mailbox *mbox = (struct imapc_mailbox *)box;
struct imapc_command *cmd;
struct imapc_simple_context sctx;
string_t *str;
if (imapc_mailbox_get_capabilities(mbox) < 0)
return -1;
str = t_str_new(256);
if ((items & STATUS_MESSAGES) != 0)
str_append(str, " MESSAGES");
if ((items & STATUS_RECENT) != 0)
str_append(str, " RECENT");
if ((items & STATUS_UIDNEXT) != 0)
str_append(str, " UIDNEXT");
if ((items & STATUS_UIDVALIDITY) != 0)
str_append(str, " UIDVALIDITY");
if ((items & STATUS_UNSEEN) != 0)
str_append(str, " UNSEEN");
if ((items & STATUS_HIGHESTMODSEQ) != 0 &&
imapc_mailbox_has_modseqs(mbox))
str_append(str, " HIGHESTMODSEQ");
if (str_len(str) == 0) {
/* nothing requested */
return 0;
}
imapc_simple_context_init(&sctx, mbox->storage->client);
mbox->storage->cur_status_box = mbox;
mbox->storage->cur_status = status_r;
cmd = imapc_client_cmd(mbox->storage->client->client,
imapc_simple_callback, &sctx);
imapc_command_set_flags(cmd, IMAPC_COMMAND_FLAG_RETRIABLE);
imapc_command_sendf(cmd, "STATUS %s (%1s)",
imapc_mailbox_get_remote_name(mbox), str_c(str)+1);
imapc_simple_run(&sctx);
mbox->storage->cur_status_box = NULL;
mbox->storage->cur_status = NULL;
return sctx.ret;
}
static int imapc_mailbox_get_status(struct mailbox *box,
enum mailbox_status_items items,
struct mailbox_status *status_r)
{
struct imapc_mailbox *mbox = (struct imapc_mailbox *)box;
if (mbox->guid_fetch_field_name != NULL ||
IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_GUID_FORCED))
status_r->have_guids = TRUE;
if (box->opened) {
if (imapc_mailbox_get_selected_status(mbox, items, status_r) < 0) {
/* can't do anything about this */
}
} else if ((items & (STATUS_FIRST_UNSEEN_SEQ | STATUS_KEYWORDS |
STATUS_PERMANENT_FLAGS |
STATUS_FIRST_RECENT_UID)) != 0) {
/* getting these requires opening the mailbox */
if (mailbox_open(box) < 0)
return -1;
if (imapc_mailbox_get_selected_status(mbox, items, status_r) < 0)
return -1;
} else {
if (imapc_mailbox_run_status(box, items, status_r) < 0)
return -1;
}
if (box->opened && !box->deleting && (items & STATUS_UIDNEXT) != 0 &&
mbox->sync_uid_next == 0) {
/* Courier-workaround, it doesn't send UIDNEXT on SELECT */
if (imapc_mailbox_run_status(box, STATUS_UIDNEXT, status_r) < 0)
return -1;
}
return 0;
}
static int imapc_mailbox_get_namespaces(struct imapc_mailbox *mbox)
{
struct imapc_storage *storage = mbox->storage;
struct imapc_command *cmd;
struct imapc_simple_context sctx;
if (storage->namespaces_requested)
return 0;