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imapc-mailbox.c
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imapc-mailbox.c
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/* Copyright (c) 2011-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "ioloop.h"
#include "str.h"
#include "mail-index-modseq.h"
#include "imap-arg.h"
#include "imap-seqset.h"
#include "imap-util.h"
#include "imapc-mail.h"
#include "imapc-msgmap.h"
#include "imapc-list.h"
#include "imapc-search.h"
#include "imapc-sync.h"
#include "imapc-storage.h"
#define NOTIFY_DELAY_MSECS 500
void imapc_mailbox_set_corrupted(struct imapc_mailbox *mbox,
const char *reason, ...)
{
const char *errmsg;
va_list va;
va_start(va, reason);
errmsg = t_strdup_printf("Mailbox '%s' state corrupted: %s",
mbox->box.name, t_strdup_vprintf(reason, va));
va_end(va);
mail_storage_set_internal_error(&mbox->storage->storage);
if (!mbox->initial_sync_done) {
/* we failed during initial sync. need to rebuild indexes if
we want to get this fixed */
mail_index_mark_corrupted(mbox->box.index);
} else {
/* maybe the remote server is buggy and has become confused.
try reconnecting. */
}
imapc_client_mailbox_reconnect(mbox->client_box, errmsg);
}
static struct mail_index_view *
imapc_mailbox_get_sync_view(struct imapc_mailbox *mbox)
{
if (mbox->sync_view == NULL)
mbox->sync_view = mail_index_view_open(mbox->box.index);
return mbox->sync_view;
}
static void imapc_mailbox_init_delayed_trans(struct imapc_mailbox *mbox)
{
if (mbox->delayed_sync_trans != NULL)
return;
i_assert(mbox->delayed_sync_cache_view == NULL);
i_assert(mbox->delayed_sync_cache_trans == NULL);
mbox->delayed_sync_trans =
mail_index_transaction_begin(imapc_mailbox_get_sync_view(mbox),
MAIL_INDEX_TRANSACTION_FLAG_EXTERNAL);
mbox->delayed_sync_view =
mail_index_transaction_open_updated_view(mbox->delayed_sync_trans);
mbox->delayed_sync_cache_view =
mail_cache_view_open(mbox->box.cache, mbox->delayed_sync_view);
mbox->delayed_sync_cache_trans =
mail_cache_get_transaction(mbox->delayed_sync_cache_view,
mbox->delayed_sync_trans);
}
static int imapc_mailbox_commit_delayed_expunges(struct imapc_mailbox *mbox)
{
struct mail_index_view *view = imapc_mailbox_get_sync_view(mbox);
struct mail_index_transaction *trans;
struct seq_range_iter iter;
unsigned int n;
uint32_t lseq, uid;
int ret;
trans = mail_index_transaction_begin(view,
MAIL_INDEX_TRANSACTION_FLAG_EXTERNAL);
seq_range_array_iter_init(&iter, &mbox->delayed_expunged_uids); n = 0;
while (seq_range_array_iter_nth(&iter, n++, &uid)) {
if (mail_index_lookup_seq(view, uid, &lseq))
mail_index_expunge(trans, lseq);
}
array_clear(&mbox->delayed_expunged_uids);
ret = mail_index_transaction_commit(&trans);
if (ret < 0)
mailbox_set_index_error(&mbox->box);
return ret;
}
int imapc_mailbox_commit_delayed_trans(struct imapc_mailbox *mbox,
bool *changes_r)
{
int ret = 0;
*changes_r = FALSE;
if (mbox->delayed_sync_view != NULL)
mail_index_view_close(&mbox->delayed_sync_view);
if (mbox->delayed_sync_trans == NULL)
;
else if (!mbox->selected) {
/* ignore any changes done during SELECT */
mail_index_transaction_rollback(&mbox->delayed_sync_trans);
} else {
if (mail_index_transaction_commit(&mbox->delayed_sync_trans) < 0) {
mailbox_set_index_error(&mbox->box);
ret = -1;
}
*changes_r = TRUE;
}
mbox->delayed_sync_cache_trans = NULL;
if (mbox->delayed_sync_cache_view != NULL)
mail_cache_view_close(&mbox->delayed_sync_cache_view);
if (array_count(&mbox->delayed_expunged_uids) > 0) {
/* delayed expunges - commit them now in a separate
transaction. Reopen mbox->sync_view to see changes
committed in delayed_sync_trans. */
if (mbox->sync_view != NULL)
mail_index_view_close(&mbox->sync_view);
if (imapc_mailbox_commit_delayed_expunges(mbox) < 0)
ret = -1;
}
if (mbox->sync_view != NULL)
mail_index_view_close(&mbox->sync_view);
i_assert(mbox->delayed_sync_trans == NULL);
i_assert(mbox->delayed_sync_view == NULL);
i_assert(mbox->delayed_sync_cache_trans == NULL);
return ret;
}
static void imapc_mailbox_idle_timeout(struct imapc_mailbox *mbox)
{
timeout_remove(&mbox->to_idle_delay);
if (mbox->box.notify_callback != NULL)
mbox->box.notify_callback(&mbox->box, mbox->box.notify_context);
}
static void imapc_mailbox_idle_notify(struct imapc_mailbox *mbox)
{
struct ioloop *old_ioloop = current_ioloop;
if (mbox->box.notify_callback != NULL &&
mbox->to_idle_delay == NULL) {
io_loop_set_current(mbox->storage->root_ioloop);
mbox->to_idle_delay =
timeout_add_short(NOTIFY_DELAY_MSECS,
imapc_mailbox_idle_timeout, mbox);
io_loop_set_current(old_ioloop);
}
}
static void
imapc_mailbox_fetch_state_finish(struct imapc_mailbox *mbox)
{
uint32_t lseq, uid, msg_count;
if (mbox->sync_next_lseq == 0) {
/* FETCH n:*, not 1:* */
i_assert(mbox->state_fetched_success ||
(mbox->box.flags & MAILBOX_FLAG_SAVEONLY) != 0);
return;
}
/* if we haven't seen FETCH reply for some messages at the end of
mailbox they've been externally expunged. */
msg_count = mail_index_view_get_messages_count(mbox->delayed_sync_view);
for (lseq = mbox->sync_next_lseq; lseq <= msg_count; lseq++) {
mail_index_lookup_uid(mbox->delayed_sync_view, lseq, &uid);
if (uid >= mbox->sync_uid_next) {
/* another process already added new messages to index
that our IMAP connection hasn't seen yet */
break;
}
mail_index_expunge(mbox->delayed_sync_trans, lseq);
}
mbox->sync_next_lseq = 0;
mbox->sync_next_rseq = 0;
mbox->state_fetched_success = TRUE;
}
static void
imapc_mailbox_fetch_state_callback(const struct imapc_command_reply *reply,
void *context)
{
struct imapc_mailbox *mbox = context;
mbox->state_fetching_uid1 = FALSE;
imapc_client_stop(mbox->storage->client->client);
switch (reply->state) {
case IMAPC_COMMAND_STATE_OK:
imapc_mailbox_fetch_state_finish(mbox);
break;
case IMAPC_COMMAND_STATE_NO:
imapc_copy_error_from_reply(mbox->storage, MAIL_ERROR_PARAMS, reply);
break;
case IMAPC_COMMAND_STATE_DISCONNECTED:
mail_storage_set_internal_error(mbox->box.storage);
break;
default:
mail_storage_set_critical(mbox->box.storage,
"imapc: state FETCH failed: %s", reply->text_full);
break;
}
}
static void
imapc_mailbox_fetch_state(struct imapc_mailbox *mbox, uint32_t first_uid)
{
struct imapc_command *cmd;
if (mbox->exists_count == 0) {
/* empty mailbox - no point in fetching anything */
mbox->state_fetched_success = TRUE;
return;
}
if (mbox->state_fetching_uid1) {
/* retrying after reconnection - don't send duplicate */
return;
}
string_t *str = t_str_new(64);
str_printfa(str, "UID FETCH %u:* (FLAGS", first_uid);
if (imapc_mailbox_has_modseqs(mbox)) {
str_append(str, " MODSEQ");
mail_index_modseq_enable(mbox->box.index);
}
if (IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_GMAIL_MIGRATION)) {
enum mailbox_info_flags flags;
if (!mail_index_is_in_memory(mbox->box.index)) {
/* these can be efficiently fetched among flags and
stored into cache */
str_append(str, " X-GM-MSGID");
}
/* do this only for the \All mailbox */
if (imapc_list_get_mailbox_flags(mbox->box.list,
mbox->box.name, &flags) == 0 &&
(flags & MAILBOX_SPECIALUSE_ALL) != 0)
str_append(str, " X-GM-LABELS");
}
str_append_c(str, ')');
cmd = imapc_client_mailbox_cmd(mbox->client_box,
imapc_mailbox_fetch_state_callback, mbox);
if (first_uid == 1) {
mbox->sync_next_lseq = 1;
mbox->sync_next_rseq = 1;
mbox->state_fetched_success = FALSE;
/* only the FETCH 1:* is retriable - others will be retried
by the 1:* after the reconnection */
imapc_command_set_flags(cmd, IMAPC_COMMAND_FLAG_RETRIABLE);
}
mbox->state_fetching_uid1 = first_uid == 1;
imapc_command_send(cmd, str_c(str));
}
static void
imapc_untagged_exists(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
struct mail_index_view *view;
uint32_t exists_count = reply->num;
const struct mail_index_header *hdr;
if (mbox == NULL)
return;
if (mbox->exists_received &&
IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_NO_MSN_UPDATES)) {
/* ignore all except the first EXISTS reply (returned by
SELECT) */
return;
}
mbox->exists_count = exists_count;
mbox->exists_received = TRUE;
view = mbox->delayed_sync_view;
if (view == NULL)
view = imapc_mailbox_get_sync_view(mbox);
if (mbox->selecting) {
/* We don't know the latest flags, refresh them. */
imapc_mailbox_fetch_state(mbox, 1);
} else if (mbox->sync_fetch_first_uid != 1) {
hdr = mail_index_get_header(view);
mbox->sync_fetch_first_uid = hdr->next_uid;
imapc_mailbox_fetch_state(mbox, hdr->next_uid);
}
imapc_mailbox_idle_notify(mbox);
}
static bool keywords_are_equal(struct mail_keywords *kw,
const ARRAY_TYPE(keyword_indexes) *kw_arr)
{
const unsigned int *kw_idx;
unsigned int i, j, count;
kw_idx = array_get(kw_arr, &count);
if (count != kw->count)
return FALSE;
/* there are normally only a few keywords, so O(n^2) is fine */
for (i = 0; i < count; i++) {
for (j = 0; j < count; j++) {
if (kw->idx[i] == kw_idx[j])
break;
}
if (j == count)
return FALSE;
}
return TRUE;
}
static int
imapc_mailbox_msgmap_update(struct imapc_mailbox *mbox,
uint32_t rseq, uint32_t fetch_uid,
uint32_t *lseq_r, uint32_t *uid_r)
{
struct imapc_msgmap *msgmap;
uint32_t uid, msg_count, rseq2;
*lseq_r = 0;
*uid_r = uid = fetch_uid;
if (rseq > mbox->exists_count) {
/* Receiving a FETCH for a message that EXISTS hasn't
announced yet. MS Exchange has a bug where our UID FETCH
request sometimes sends replies where sequences are above
EXISTS value, but their UIDs are for existing messages.
We'll just ignore these replies. */
return 0;
}
if (rseq < mbox->prev_skipped_rseq &&
fetch_uid > mbox->prev_skipped_uid) {
/* This was the initial attempt at catching the above
MS Exchange bug, but the above one appears to catch all
these cases. But keep it here just in case. */
imapc_mailbox_set_corrupted(mbox,
"FETCH sequence/UID order is mixed "
"(seq=%u,%u vs uid=%u,%u)",
mbox->prev_skipped_rseq, rseq,
mbox->prev_skipped_uid, fetch_uid);
return -1;
}
msgmap = imapc_client_mailbox_get_msgmap(mbox->client_box);
msg_count = imapc_msgmap_count(msgmap);
if (fetch_uid != 0 && mbox->state_fetched_success &&
(IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_FETCH_MSN_WORKAROUNDS) ||
IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_NO_MSN_UPDATES))) {
/* if we know the UID, use own own generated rseq instead of
the potentially broken rseq that the server sent.
Skip this during the initial FETCH 1:* (UID ..) handling,
or we can't detect duplicate UIDs and will instead
assert-crash later on. */
uint32_t fixed_rseq;
if (imapc_msgmap_uid_to_rseq(msgmap, fetch_uid, &fixed_rseq))
rseq = fixed_rseq;
}
if (rseq <= msg_count) {
uid = imapc_msgmap_rseq_to_uid(msgmap, rseq);
if (uid != fetch_uid && fetch_uid != 0) {
imapc_mailbox_set_corrupted(mbox,
"FETCH UID mismatch (%u != %u)",
fetch_uid, uid);
return -1;
}
*uid_r = uid;
} else if (fetch_uid == 0 || rseq != msg_count+1) {
/* probably a flag update for a message we haven't yet
received our initial UID FETCH for. we should get
another one. */
if (fetch_uid == 0)
return 0;
if (imapc_msgmap_uid_to_rseq(msgmap, fetch_uid, &rseq2)) {
imapc_mailbox_set_corrupted(mbox,
"FETCH returned wrong sequence for UID %u "
"(%u != %u)", fetch_uid, rseq, rseq2);
return -1;
}
mbox->prev_skipped_rseq = rseq;
mbox->prev_skipped_uid = fetch_uid;
} else if (fetch_uid < imapc_msgmap_uidnext(msgmap)) {
imapc_mailbox_set_corrupted(mbox,
"Expunged message reappeared in session "
"(uid=%u < next_uid=%u)",
fetch_uid, imapc_msgmap_uidnext(msgmap));
return -1;
} else {
/* newly seen message */
imapc_msgmap_append(msgmap, rseq, uid);
if (uid < mbox->min_append_uid ||
uid < mail_index_get_header(mbox->delayed_sync_view)->next_uid) {
/* message is already added to index */
} else {
mail_index_append(mbox->delayed_sync_trans,
uid, lseq_r);
mbox->min_append_uid = uid + 1;
}
}
return 0;
}
static void imapc_untagged_fetch(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
uint32_t lseq, rseq = reply->num;
struct imapc_fetch_request *const *fetch_requestp;
struct imapc_mail *const *mailp;
const struct imap_arg *list, *flags_list, *modseq_list;
const char *atom, *guid = NULL;
const struct mail_index_record *rec = NULL;
enum mail_flags flags;
uint32_t fetch_uid, uid;
uint64_t modseq = 0;
unsigned int i, j;
ARRAY_TYPE(const_string) keywords = ARRAY_INIT;
bool seen_flags = FALSE, have_labels = FALSE;
if (mbox == NULL || rseq == 0 || !imap_arg_get_list(reply->args, &list))
return;
fetch_uid = 0; flags = 0;
for (i = 0; list[i].type != IMAP_ARG_EOL; i += 2) {
if (!imap_arg_get_atom(&list[i], &atom))
return;
if (strcasecmp(atom, "UID") == 0) {
if (!imap_arg_get_atom(&list[i+1], &atom) ||
str_to_uint32(atom, &fetch_uid) < 0)
return;
} else if (strcasecmp(atom, "FLAGS") == 0) {
if (!imap_arg_get_list(&list[i+1], &flags_list))
return;
t_array_init(&keywords, 8);
seen_flags = TRUE;
for (j = 0; flags_list[j].type != IMAP_ARG_EOL; j++) {
if (!imap_arg_get_atom(&flags_list[j], &atom))
return;
if (atom[0] == '\\')
flags |= imap_parse_system_flag(atom);
else {
/* keyword */
array_append(&keywords, &atom, 1);
}
}
} else if (strcasecmp(atom, "MODSEQ") == 0 &&
imapc_mailbox_has_modseqs(mbox)) {
/* (modseq-number) */
if (!imap_arg_get_list(&list[i+1], &modseq_list))
return;
if (!imap_arg_get_atom(&modseq_list[0], &atom) ||
str_to_uint64(atom, &modseq) < 0 ||
modseq_list[1].type != IMAP_ARG_EOL)
return;
} else if (strcasecmp(atom, "X-GM-MSGID") == 0 &&
!mbox->initial_sync_done) {
if (imap_arg_get_atom(&list[i+1], &atom))
guid = atom;
} else if (strcasecmp(atom, "X-GM-LABELS") == 0 &&
IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_GMAIL_MIGRATION)) {
if (!imap_arg_get_list(&list[i+1], &flags_list))
return;
for (j = 0; flags_list[j].type != IMAP_ARG_EOL; j++) {
if (!imap_arg_get_astring(&flags_list[j], &atom))
return;
if (strcasecmp(atom, "\\Muted") != 0)
have_labels = TRUE;
}
}
}
if (fetch_uid == 0 &&
IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_NO_MSN_UPDATES)) {
/* UID missing and we're not tracking MSNs */
return;
}
imapc_mailbox_init_delayed_trans(mbox);
if (imapc_mailbox_msgmap_update(mbox, rseq, fetch_uid,
&lseq, &uid) < 0 || uid == 0)
return;
if ((flags & MAIL_RECENT) == 0 && mbox->highest_nonrecent_uid < uid) {
/* remember for STATUS_FIRST_RECENT_UID */
mbox->highest_nonrecent_uid = uid;
}
/* FIXME: we should ideally also pass these through so they show up
to clients. */
flags &= ~MAIL_RECENT;
/* if this is a reply to some FETCH request, update the mail's fields */
array_foreach(&mbox->fetch_requests, fetch_requestp) {
array_foreach(&(*fetch_requestp)->mails, mailp) {
struct imapc_mail *mail = *mailp;
if (mail->imail.mail.mail.uid == uid)
imapc_mail_fetch_update(mail, reply, list);
}
}
if (lseq == 0) {
if (!mail_index_lookup_seq(mbox->delayed_sync_view,
uid, &lseq)) {
/* already expunged by another session */
if (rseq == mbox->sync_next_rseq)
mbox->sync_next_rseq++;
return;
}
}
if (rseq == mbox->sync_next_rseq) {
/* we're doing the initial full sync of mails. expunge any
mails that no longer exist. */
while (mbox->sync_next_lseq < lseq) {
mail_index_expunge(mbox->delayed_sync_trans,
mbox->sync_next_lseq);
mbox->sync_next_lseq++;
}
i_assert(lseq == mbox->sync_next_lseq);
mbox->sync_next_rseq++;
mbox->sync_next_lseq++;
}
rec = mail_index_lookup(mbox->delayed_sync_view, lseq);
if (seen_flags && rec->flags != flags) {
mail_index_update_flags(mbox->delayed_sync_trans, lseq,
MODIFY_REPLACE, flags);
}
if (seen_flags) {
ARRAY_TYPE(keyword_indexes) old_kws;
struct mail_keywords *kw;
t_array_init(&old_kws, 8);
mail_index_lookup_keywords(mbox->delayed_sync_view, lseq,
&old_kws);
if (have_labels) {
/* add keyword for mails that have GMail labels.
this can be used for "All Mail" mailbox migrations
with dsync */
atom = "$GMailHaveLabels";
array_append(&keywords, &atom, 1);
}
array_append_zero(&keywords);
kw = mail_index_keywords_create(mbox->box.index,
array_idx(&keywords, 0));
if (!keywords_are_equal(kw, &old_kws)) {
mail_index_update_keywords(mbox->delayed_sync_trans,
lseq, MODIFY_REPLACE, kw);
}
mail_index_keywords_unref(&kw);
}
if (modseq != 0) {
if (mail_index_modseq_lookup(mbox->delayed_sync_view, lseq) < modseq)
mail_index_update_modseq(mbox->delayed_sync_trans, lseq, modseq);
array_idx_set(&mbox->rseq_modseqs, rseq-1, &modseq);
}
if (guid != NULL) {
struct index_mailbox_context *ibox = INDEX_STORAGE_CONTEXT(&mbox->box);
const enum index_cache_field guid_cache_idx =
ibox->cache_fields[MAIL_CACHE_GUID].idx;
if (mail_cache_field_can_add(mbox->delayed_sync_cache_trans,
lseq, guid_cache_idx)) {
mail_cache_add(mbox->delayed_sync_cache_trans, lseq,
guid_cache_idx, guid, strlen(guid)+1);
}
}
imapc_mailbox_idle_notify(mbox);
}
static void imapc_untagged_expunge(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
struct imapc_msgmap *msgmap;
uint32_t lseq, uid, rseq = reply->num;
if (mbox == NULL || rseq == 0 ||
IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_NO_MSN_UPDATES))
return;
mbox->prev_skipped_rseq = 0;
mbox->prev_skipped_uid = 0;
if (mbox->exists_count == 0) {
imapc_mailbox_set_corrupted(mbox,
"EXPUNGE received for empty mailbox");
return;
}
mbox->exists_count--;
msgmap = imapc_client_mailbox_get_msgmap(mbox->client_box);
if (rseq > imapc_msgmap_count(msgmap)) {
/* we haven't even seen this message yet */
return;
}
uid = imapc_msgmap_rseq_to_uid(msgmap, rseq);
imapc_msgmap_expunge(msgmap, rseq);
if (array_is_created(&mbox->rseq_modseqs))
array_delete(&mbox->rseq_modseqs, rseq-1, 1);
imapc_mailbox_init_delayed_trans(mbox);
if (mail_index_lookup_seq(mbox->sync_view, uid, &lseq))
mail_index_expunge(mbox->delayed_sync_trans, lseq);
else if (mail_index_lookup_seq(mbox->delayed_sync_view, uid, &lseq)) {
/* this message exists only in this transaction. lib-index
can't currently handle expunging anything except the last
appended message in a transaction, and fixing it would be
quite a lot of trouble. so instead we'll just delay doing
this expunge until after the current transaction has been
committed. */
seq_range_array_add(&mbox->delayed_expunged_uids, uid);
} else {
/* already expunged by another session */
}
imapc_mailbox_idle_notify(mbox);
}
static void
imapc_untagged_esearch_gmail_pop3(const struct imap_arg *args,
struct imapc_mailbox *mbox)
{
struct imapc_msgmap *msgmap;
const char *atom;
struct seq_range_iter iter;
ARRAY_TYPE(seq_range) rseqs;
unsigned int n;
uint32_t rseq, lseq, uid;
ARRAY_TYPE(keyword_indexes) keywords;
struct mail_keywords *kw;
unsigned int pop3_deleted_kw_idx;
i_free_and_null(mbox->sync_gmail_pop3_search_tag);
/* It should contain ALL <seqset> or nonexistent if nothing matched */
if (args[0].type == IMAP_ARG_EOL)
return;
t_array_init(&rseqs, 64);
if (!imap_arg_atom_equals(&args[0], "ALL") ||
!imap_arg_get_atom(&args[1], &atom) ||
imap_seq_set_nostar_parse(atom, &rseqs) < 0) {
i_error("Invalid gmail-pop3 ESEARCH reply");
return;
}
mail_index_keyword_lookup_or_create(mbox->box.index,
mbox->storage->set->pop3_deleted_flag, &pop3_deleted_kw_idx);
t_array_init(&keywords, 1);
array_append(&keywords, &pop3_deleted_kw_idx, 1);
kw = mail_index_keywords_create_from_indexes(mbox->box.index, &keywords);
msgmap = imapc_client_mailbox_get_msgmap(mbox->client_box);
seq_range_array_iter_init(&iter, &rseqs); n = 0;
while (seq_range_array_iter_nth(&iter, n++, &rseq)) {
if (rseq > imapc_msgmap_count(msgmap)) {
/* we haven't even seen this message yet */
break;
}
uid = imapc_msgmap_rseq_to_uid(msgmap, rseq);
if (!mail_index_lookup_seq(mbox->delayed_sync_view,
uid, &lseq))
continue;
/* add the pop3_deleted_flag */
mail_index_update_keywords(mbox->delayed_sync_trans,
lseq, MODIFY_ADD, kw);
}
mail_index_keywords_unref(&kw);
}
static void imapc_untagged_search(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
if (mbox != NULL)
imapc_search_reply_search(reply->args, mbox);
}
static void imapc_untagged_esearch(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
const struct imap_arg *tag_list;
const char *str;
if (mbox == NULL || !imap_arg_get_list(reply->args, &tag_list))
return;
/* ESEARCH begins with (TAG <tag>) */
if (!imap_arg_atom_equals(&tag_list[0], "TAG") ||
!imap_arg_get_string(&tag_list[1], &str) ||
tag_list[2].type != IMAP_ARG_EOL)
return;
/* for now the only ESEARCH reply that we have is for getting GMail's
list of hidden POP3 messages. */
if (mbox->sync_gmail_pop3_search_tag != NULL &&
strcmp(mbox->sync_gmail_pop3_search_tag, str) == 0)
imapc_untagged_esearch_gmail_pop3(reply->args+1, mbox);
else
imapc_search_reply_esearch(reply->args+1, mbox);
}
static void imapc_sync_uid_validity(struct imapc_mailbox *mbox)
{
const struct mail_index_header *hdr;
imapc_mailbox_init_delayed_trans(mbox);
hdr = mail_index_get_header(mbox->delayed_sync_view);
if (hdr->uid_validity != mbox->sync_uid_validity &&
mbox->sync_uid_validity != 0) {
if (hdr->uid_validity != 0) {
/* uidvalidity changed, reset the entire mailbox */
mail_index_reset(mbox->delayed_sync_trans);
mbox->sync_fetch_first_uid = 1;
}
mail_index_update_header(mbox->delayed_sync_trans,
offsetof(struct mail_index_header, uid_validity),
&mbox->sync_uid_validity,
sizeof(mbox->sync_uid_validity), TRUE);
}
}
static void
imapc_resp_text_uidvalidity(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
uint32_t uid_validity;
if (mbox == NULL ||
str_to_uint32(reply->resp_text_value, &uid_validity) < 0 ||
uid_validity == 0)
return;
if (mbox->sync_uid_validity != uid_validity) {
mbox->sync_uid_validity = uid_validity;
imapc_mail_cache_free(&mbox->prev_mail_cache);
imapc_sync_uid_validity(mbox);
}
}
static void
imapc_resp_text_uidnext(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
uint32_t uid_next;
if (mbox == NULL ||
str_to_uint32(reply->resp_text_value, &uid_next) < 0)
return;
mbox->sync_uid_next = uid_next;
}
static void
imapc_resp_text_highestmodseq(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
uint64_t highestmodseq;
if (mbox == NULL ||
str_to_uint64(reply->resp_text_value, &highestmodseq) < 0)
return;
mbox->sync_highestmodseq = highestmodseq;
}
static void
imapc_resp_text_permanentflags(const struct imapc_untagged_reply *reply,
struct imapc_mailbox *mbox)
{
const struct imap_arg *flags_args, *arg;
const char *flag;
unsigned int idx;
i_assert(reply->args[0].type == IMAP_ARG_ATOM);
if (mbox == NULL || !imap_arg_get_list(&reply->args[1], &flags_args))
return;
mbox->permanent_flags = 0;
mbox->box.disallow_new_keywords = TRUE;
for (arg = flags_args; arg->type != IMAP_ARG_EOL; arg++) {
if (!imap_arg_get_atom(arg, &flag))
continue;
if (strcmp(flag, "\\*") == 0)
mbox->box.disallow_new_keywords = FALSE;
else if (*flag == '\\')
mbox->permanent_flags |= imap_parse_system_flag(flag);
else {
/* we'll simply make sure that it exists in the index */
mail_index_keyword_lookup_or_create(mbox->box.index,
flag, &idx);
}
}
}
void imapc_mailbox_register_untagged(struct imapc_mailbox *mbox,
const char *key,
imapc_mailbox_callback_t *callback)
{
struct imapc_mailbox_event_callback *cb;
cb = array_append_space(&mbox->untagged_callbacks);
cb->name = p_strdup(mbox->box.pool, key);
cb->callback = callback;
}
void imapc_mailbox_register_resp_text(struct imapc_mailbox *mbox,
const char *key,
imapc_mailbox_callback_t *callback)
{
struct imapc_mailbox_event_callback *cb;
cb = array_append_space(&mbox->resp_text_callbacks);
cb->name = p_strdup(mbox->box.pool, key);
cb->callback = callback;
}
void imapc_mailbox_register_callbacks(struct imapc_mailbox *mbox)
{
imapc_mailbox_register_untagged(mbox, "EXISTS",
imapc_untagged_exists);
imapc_mailbox_register_untagged(mbox, "FETCH",
imapc_untagged_fetch);
imapc_mailbox_register_untagged(mbox, "EXPUNGE",
imapc_untagged_expunge);
imapc_mailbox_register_untagged(mbox, "SEARCH",
imapc_untagged_search);
imapc_mailbox_register_untagged(mbox, "ESEARCH",
imapc_untagged_esearch);
imapc_mailbox_register_resp_text(mbox, "UIDVALIDITY",
imapc_resp_text_uidvalidity);
imapc_mailbox_register_resp_text(mbox, "UIDNEXT",
imapc_resp_text_uidnext);
imapc_mailbox_register_resp_text(mbox, "HIGHESTMODSEQ",
imapc_resp_text_highestmodseq);
imapc_mailbox_register_resp_text(mbox, "PERMANENTFLAGS",
imapc_resp_text_permanentflags);
}