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/* Copyright (c) 2010-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "array.h"
#include "llist.h"
#include "ioloop.h"
#include "istream.h"
#include "master-service.h"
#include "director.h"
#include "mail-host.h"
#include "notify-connection.h"
#include <unistd.h>
struct notify_connection {
struct notify_connection *prev, *next;
int fd;
struct io *io;
struct istream *input;
struct director *dir;
bool fifo:1;
};
static struct notify_connection *notify_connections = NULL;
static void notify_connection_deinit(struct notify_connection **_conn);
static void notify_update_user(struct director *dir, struct mail_tag *tag,
const char *username, unsigned int username_hash)
{
struct user *user;
int diff;
user = user_directory_lookup(tag->users, username_hash);
if (user == NULL)
return;
diff = ioloop_time - user->timestamp;
if (diff >= (int)dir->set->director_user_expire) {
e_warning(dir->event,
"notify: User %s refreshed too late (%d secs)",
username, diff);
}
user_directory_refresh(tag->users, user);
director_update_user(dir, dir->self_host, user);
}
static void notify_connection_input(struct notify_connection *conn)
{
struct mail_tag *tag;
const char *line;
unsigned int hash;
while ((line = i_stream_read_next_line(conn->input)) != NULL) {
if (!director_get_username_hash(conn->dir, line, &hash))
continue;
array_foreach_elem(mail_hosts_get_tags(conn->dir->mail_hosts), tag)
notify_update_user(conn->dir, tag, line, hash);
}
if (conn->input->eof) {
if (conn->fifo)
e_error(conn->dir->event,
"notify: read() unexpectedly returned EOF");
notify_connection_deinit(&conn);
} else if (conn->input->stream_errno != 0) {
e_error(conn->dir->event, "notify: read() failed: %s",
i_stream_get_error(conn->input));
notify_connection_deinit(&conn);
}
}
void notify_connection_init(struct director *dir, int fd, bool fifo)
{
struct notify_connection *conn;
conn = i_new(struct notify_connection, 1);
conn->fd = fd;
conn->fifo = fifo;
conn->dir = dir;
conn->input = i_stream_create_fd(conn->fd, 1024);
conn->io = io_add(conn->fd, IO_READ, notify_connection_input, conn);
DLLIST_PREPEND(¬ify_connections, conn);
}
static void notify_connection_deinit(struct notify_connection **_conn)
{
struct notify_connection *conn = *_conn;
*_conn = NULL;
DLLIST_REMOVE(¬ify_connections, conn);
io_remove(&conn->io);
i_stream_unref(&conn->input);
if (close(conn->fd) < 0)
e_error(conn->dir->event, "close(notify connection) failed: %m");
if (!conn->fifo)
master_service_client_connection_destroyed(master_service);
i_free(conn);
}
void notify_connections_deinit(void)
{
while (notify_connections != NULL) {
struct notify_connection *conn = notify_connections;
notify_connection_deinit(&conn);
}
}
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