Files
chatmail-core/src/dc_sqlite3.rs
dignifiedquire 8790a2dc52 add sql.query_map
2019-07-10 16:45:05 +02:00

1339 lines
46 KiB
Rust

use std::collections::HashSet;
use rusqlite::{Connection, OpenFlags, Statement, NO_PARAMS};
use crate::constants::*;
use crate::context::Context;
use crate::dc_param::*;
use crate::dc_tools::*;
use crate::peerstate::*;
use crate::x::*;
const DC_OPEN_READONLY: usize = 0x01;
/// A wrapper around the underlying Sqlite3 object.
pub struct SQLite {
connection: std::sync::RwLock<Option<Connection>>,
}
impl SQLite {
pub fn new() -> SQLite {
SQLite {
connection: std::sync::RwLock::new(None),
}
}
pub fn is_open(&self) -> bool {
self.connection.read().unwrap().is_some()
}
pub fn close(&self, context: &Context) {
let mut conn = self.connection.write().unwrap();
if conn.is_some() {
conn.take();
// drop closes the connection
}
info!(context, 0, "Database closed.");
}
// return true on success, false on failure
pub fn open(&self, context: &Context, dbfile: &std::path::Path, flags: libc::c_int) -> bool {
match dc_sqlite3_open(context, self, dbfile, flags) {
1 => true,
_ => false,
}
}
pub fn execute<P>(&self, sql: &str, params: P) -> rusqlite::Result<usize>
where
P: IntoIterator,
P::Item: rusqlite::ToSql,
{
match &*self.connection.read().unwrap() {
Some(conn) => conn.execute(sql, params),
None => panic!("Querying closed SQLite database"),
}
}
pub fn get_conn(&self) -> std::sync::RwLockReadGuard<Option<Connection>> {
self.connection.read().unwrap()
}
pub fn query_map<T, P, F, G, H>(
&self,
sql: &str,
params: P,
f: F,
mut g: G,
) -> rusqlite::Result<H>
where
P: IntoIterator,
P::Item: rusqlite::ToSql,
F: FnMut(&rusqlite::Row) -> rusqlite::Result<T>,
G: FnMut(rusqlite::MappedRows<F>) -> rusqlite::Result<H>,
{
let conn_lock = self.connection.read().unwrap();
let conn = conn_lock.as_ref().expect("database closed");
let mut stmt = conn.prepare(sql)?;
let res = stmt.query_map(params, f)?;
g(res)
}
pub fn query_row<T, P, F>(&self, sql: &str, params: P, f: F) -> rusqlite::Result<T>
where
P: IntoIterator,
P::Item: rusqlite::ToSql,
F: FnOnce(&rusqlite::Row) -> rusqlite::Result<T>,
{
match &*self.connection.read().unwrap() {
Some(conn) => conn.query_row(sql, params, f),
None => panic!("Querying closed SQLite database"),
}
}
pub fn table_exists(&self, name: impl AsRef<str>) -> bool {
match &*self.connection.read().unwrap() {
Some(conn) => {
conn.pragma(None, "table_info", &format!("{}", name.as_ref()), |row| {
// will only be executed if the info was found
println!("row: {:?}", row.get::<_, String>(0)?);
Ok(())
})
.is_ok()
}
None => panic!("Querying closed SQLite database"),
}
}
}
// Return 1 -> success
// Return 0 -> failure
pub fn dc_sqlite3_open(
context: &Context,
sql: &SQLite,
dbfile: impl AsRef<std::path::Path>,
flags: libc::c_int,
) -> libc::c_int {
let mut current_block: u64;
if sql.is_open() {
return 0;
}
if sql.is_open() {
error!(
context,
0,
"Cannot open, database \"{:?}\" already opened.",
dbfile.as_ref(),
);
return 0;
}
let mut open_flags = OpenFlags::SQLITE_OPEN_FULL_MUTEX;
if 0 != (flags & DC_OPEN_READONLY as i32) {
open_flags.insert(OpenFlags::SQLITE_OPEN_READ_ONLY);
} else {
open_flags.insert(OpenFlags::SQLITE_OPEN_READ_WRITE);
open_flags.insert(OpenFlags::SQLITE_OPEN_CREATE);
}
match Connection::open_with_flags(dbfile.as_ref(), open_flags) {
Ok(conn) => {
let mut sql_conn = sql.connection.write().unwrap();
*sql_conn = Some(conn);
}
Err(err) => {
error!(context, 0, "Cannot open database: \"{}\".", err);
return 0;
}
}
let conn_lock = sql.connection.write().unwrap();
let conn = conn_lock.as_ref().expect("just opened");
conn.pragma_update(None, "secure_delete", &"on".to_string())
.expect("failed to enable pragma");
conn.busy_timeout(std::time::Duration::new(10, 0))
.expect("failed to set busy timeout");
if 0 == flags & DC_OPEN_READONLY as i32 {
let mut exists_before_update = 0;
let mut dbversion_before_update = 0;
/* Init tables to dbversion=0 */
if 0 == dc_sqlite3_table_exists(context, sql, "config") {
info!(
context,
0,
"First time init: creating tables in \"{:?}\".",
dbfile.as_ref(),
);
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE config (id INTEGER PRIMARY KEY, keyname TEXT, value TEXT);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX config_index1 ON config (keyname);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE contacts (\
id INTEGER PRIMARY KEY AUTOINCREMENT, \
name TEXT DEFAULT \'\', \
addr TEXT DEFAULT \'\' COLLATE NOCASE, \
origin INTEGER DEFAULT 0, \
blocked INTEGER DEFAULT 0, \
last_seen INTEGER DEFAULT 0, \
param TEXT DEFAULT \'\');",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX contacts_index1 ON contacts (name COLLATE NOCASE);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX contacts_index2 ON contacts (addr COLLATE NOCASE);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"INSERT INTO contacts (id,name,origin) VALUES \
(1,\'self\',262144), (2,\'device\',262144), (3,\'rsvd\',262144), \
(4,\'rsvd\',262144), (5,\'rsvd\',262144), (6,\'rsvd\',262144), \
(7,\'rsvd\',262144), (8,\'rsvd\',262144), (9,\'rsvd\',262144);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE chats (\
id INTEGER PRIMARY KEY AUTOINCREMENT, \
type INTEGER DEFAULT 0, \
name TEXT DEFAULT \'\', \
draft_timestamp INTEGER DEFAULT 0, \
draft_txt TEXT DEFAULT \'\', \
blocked INTEGER DEFAULT 0, \
grpid TEXT DEFAULT \'\', \
param TEXT DEFAULT \'\');",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX chats_index1 ON chats (grpid);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE chats_contacts (chat_id INTEGER, contact_id INTEGER);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX chats_contacts_index1 ON chats_contacts (chat_id);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"INSERT INTO chats (id,type,name) VALUES \
(1,120,\'deaddrop\'), (2,120,\'rsvd\'), (3,120,\'trash\'), \
(4,120,\'msgs_in_creation\'), (5,120,\'starred\'), (6,120,\'archivedlink\'), \
(7,100,\'rsvd\'), (8,100,\'rsvd\'), (9,100,\'rsvd\');",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE msgs (\
id INTEGER PRIMARY KEY AUTOINCREMENT, \
rfc724_mid TEXT DEFAULT \'\', \
server_folder TEXT DEFAULT \'\', \
server_uid INTEGER DEFAULT 0, \
chat_id INTEGER DEFAULT 0, \
from_id INTEGER DEFAULT 0, \
to_id INTEGER DEFAULT 0, \
timestamp INTEGER DEFAULT 0, \
type INTEGER DEFAULT 0, \
state INTEGER DEFAULT 0, \
msgrmsg INTEGER DEFAULT 1, \
bytes INTEGER DEFAULT 0, \
txt TEXT DEFAULT \'\', \
txt_raw TEXT DEFAULT \'\', \
param TEXT DEFAULT \'\');",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX msgs_index1 ON msgs (rfc724_mid);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX msgs_index2 ON msgs (chat_id);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX msgs_index3 ON msgs (timestamp);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX msgs_index4 ON msgs (state);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"INSERT INTO msgs (id,msgrmsg,txt) VALUES \
(1,0,\'marker1\'), (2,0,\'rsvd\'), (3,0,\'rsvd\'), \
(4,0,\'rsvd\'), (5,0,\'rsvd\'), (6,0,\'rsvd\'), (7,0,\'rsvd\'), \
(8,0,\'rsvd\'), (9,0,\'daymarker\');",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE jobs (\
id INTEGER PRIMARY KEY AUTOINCREMENT, \
added_timestamp INTEGER, \
desired_timestamp INTEGER DEFAULT 0, \
action INTEGER, \
foreign_id INTEGER, \
param TEXT DEFAULT \'\');",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX jobs_index1 ON jobs (desired_timestamp);",
params![],
);
if 0 == dc_sqlite3_table_exists(context, sql, "config")
|| 0 == dc_sqlite3_table_exists(context, sql, "contacts")
|| 0 == dc_sqlite3_table_exists(context, sql, "chats")
|| 0 == dc_sqlite3_table_exists(context, sql, "chats_contacts")
|| 0 == dc_sqlite3_table_exists(context, sql, "msgs")
|| 0 == dc_sqlite3_table_exists(context, sql, "jobs")
{
error!(
context,
0,
"Cannot create tables in new database \"{:?}\".",
dbfile.as_ref(),
);
// cannot create the tables - maybe we cannot write?
current_block = 13628706266672894061;
} else {
dc_sqlite3_set_config_int(context, sql, "dbversion", 0);
current_block = 14072441030219150333;
}
} else {
exists_before_update = 1;
dbversion_before_update = dc_sqlite3_get_config_int(context, sql, "dbversion", 0);
current_block = 14072441030219150333;
}
match current_block {
13628706266672894061 => {}
_ => {
// (1) update low-level database structure.
// this should be done before updates that use high-level objects that
// rely themselves on the low-level structure.
// --------------------------------------------------------------------
let mut dbversion: libc::c_int = dbversion_before_update;
let mut recalc_fingerprints: libc::c_int = 0;
let mut update_file_paths: libc::c_int = 0;
if dbversion < 1 {
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE leftgrps ( id INTEGER PRIMARY KEY, grpid TEXT DEFAULT \'\');",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX leftgrps_index1 ON leftgrps (grpid);",
params![],
);
dbversion = 1;
dc_sqlite3_set_config_int(context, sql, "dbversion", 1);
}
if dbversion < 2 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE contacts ADD COLUMN authname TEXT DEFAULT \'\';",
params![],
);
dbversion = 2;
dc_sqlite3_set_config_int(context, sql, "dbversion", 2);
}
if dbversion < 7 {
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE keypairs (\
id INTEGER PRIMARY KEY, \
addr TEXT DEFAULT \'\' COLLATE NOCASE, \
is_default INTEGER DEFAULT 0, \
private_key, \
public_key, \
created INTEGER DEFAULT 0);",
params![],
);
dbversion = 7;
dc_sqlite3_set_config_int(context, sql, "dbversion", 7);
}
if dbversion < 10 {
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE acpeerstates (\
id INTEGER PRIMARY KEY, \
addr TEXT DEFAULT \'\' COLLATE NOCASE, \
last_seen INTEGER DEFAULT 0, \
last_seen_autocrypt INTEGER DEFAULT 0, \
public_key, \
prefer_encrypted INTEGER DEFAULT 0);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX acpeerstates_index1 ON acpeerstates (addr);",
params![],
);
dbversion = 10;
dc_sqlite3_set_config_int(context, sql, "dbversion", 10);
}
if dbversion < 12 {
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE msgs_mdns ( msg_id INTEGER, contact_id INTEGER);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX msgs_mdns_index1 ON msgs_mdns (msg_id);",
params![],
);
dbversion = 12;
dc_sqlite3_set_config_int(context, sql, "dbversion", 12);
}
if dbversion < 17 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE chats ADD COLUMN archived INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX chats_index2 ON chats (archived);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN starred INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX msgs_index5 ON msgs (starred);",
params![],
);
dbversion = 17;
dc_sqlite3_set_config_int(context, sql, "dbversion", 17);
}
if dbversion < 18 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE acpeerstates ADD COLUMN gossip_timestamp INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE acpeerstates ADD COLUMN gossip_key;",
params![],
);
dbversion = 18;
dc_sqlite3_set_config_int(context, sql, "dbversion", 18);
}
if dbversion < 27 {
dc_sqlite3_execute(
context,
sql,
"DELETE FROM msgs WHERE chat_id=1 OR chat_id=2;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX chats_contacts_index2 ON chats_contacts (contact_id);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN timestamp_sent INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN timestamp_rcvd INTEGER DEFAULT 0;",
params![],
);
dbversion = 27;
dc_sqlite3_set_config_int(context, sql, "dbversion", 27);
}
if dbversion < 34 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN hidden INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs_mdns ADD COLUMN timestamp_sent INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context, sql,
"ALTER TABLE acpeerstates ADD COLUMN public_key_fingerprint TEXT DEFAULT \'\';",
params![]
);
dc_sqlite3_execute(
context, sql,
"ALTER TABLE acpeerstates ADD COLUMN gossip_key_fingerprint TEXT DEFAULT \'\';",
params![]
);
dc_sqlite3_execute(
context, sql,
"CREATE INDEX acpeerstates_index3 ON acpeerstates (public_key_fingerprint);",
params![]
);
dc_sqlite3_execute(
context, sql,
"CREATE INDEX acpeerstates_index4 ON acpeerstates (gossip_key_fingerprint);",
params![]
);
recalc_fingerprints = 1;
dbversion = 34;
dc_sqlite3_set_config_int(context, sql, "dbversion", 34);
}
if dbversion < 39 {
dc_sqlite3_execute(
context, sql,
"CREATE TABLE tokens ( id INTEGER PRIMARY KEY, namespc INTEGER DEFAULT 0, foreign_id INTEGER DEFAULT 0, token TEXT DEFAULT \'\', timestamp INTEGER DEFAULT 0);",
params![]
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE acpeerstates ADD COLUMN verified_key;",
params![],
);
dc_sqlite3_execute(
context, sql,
"ALTER TABLE acpeerstates ADD COLUMN verified_key_fingerprint TEXT DEFAULT \'\';",
params![]
);
dc_sqlite3_execute(
context, sql,
"CREATE INDEX acpeerstates_index5 ON acpeerstates (verified_key_fingerprint);",
params![]
);
if dbversion_before_update == 34 {
dc_sqlite3_execute(
context,
sql,
"UPDATE acpeerstates SET verified_key=gossip_key, verified_key_fingerprint=gossip_key_fingerprint WHERE gossip_key_verified=2;",
params![]
);
dc_sqlite3_execute(
context, sql,
"UPDATE acpeerstates SET verified_key=public_key, verified_key_fingerprint=public_key_fingerprint WHERE public_key_verified=2;",
params![]
);
}
dbversion = 39;
dc_sqlite3_set_config_int(context, sql, "dbversion", 39);
}
if dbversion < 40 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE jobs ADD COLUMN thread INTEGER DEFAULT 0;",
params![],
);
dbversion = 40;
dc_sqlite3_set_config_int(context, sql, "dbversion", 40);
}
if dbversion < 41 {
update_file_paths = 1;
dbversion = 41;
dc_sqlite3_set_config_int(context, sql, "dbversion", 41);
}
if dbversion < 42 {
dc_sqlite3_execute(
context,
sql,
"UPDATE msgs SET txt=\'\' WHERE type!=10",
params![],
);
dbversion = 42;
dc_sqlite3_set_config_int(context, sql, "dbversion", 42);
}
if dbversion < 44 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN mime_headers TEXT;",
params![],
);
dbversion = 44;
dc_sqlite3_set_config_int(context, sql, "dbversion", 44);
}
if dbversion < 46 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN mime_in_reply_to TEXT;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN mime_references TEXT;",
params![],
);
dbversion = 46;
dc_sqlite3_set_config_int(context, sql, "dbversion", 46);
}
if dbversion < 47 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE jobs ADD COLUMN tries INTEGER DEFAULT 0;",
params![],
);
dbversion = 47;
dc_sqlite3_set_config_int(context, sql, "dbversion", 47);
}
if dbversion < 48 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN move_state INTEGER DEFAULT 1;",
params![],
);
assert_eq!(DC_MOVE_STATE_UNDEFINED as libc::c_int, 0);
assert_eq!(DC_MOVE_STATE_PENDING as libc::c_int, 1);
assert_eq!(DC_MOVE_STATE_STAY as libc::c_int, 2);
assert_eq!(DC_MOVE_STATE_MOVING as libc::c_int, 3);
dbversion = 48;
dc_sqlite3_set_config_int(context, sql, "dbversion", 48);
}
if dbversion < 49 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE chats ADD COLUMN gossiped_timestamp INTEGER DEFAULT 0;",
params![],
);
dbversion = 49;
dc_sqlite3_set_config_int(context, sql, "dbversion", 49);
}
if dbversion < 50 {
if 0 != exists_before_update {
dc_sqlite3_set_config_int(context, sql, "show_emails", 2);
}
dbversion = 50;
dc_sqlite3_set_config_int(context, sql, "dbversion", 50);
}
if dbversion < 53 {
dc_sqlite3_execute(
context,
sql,
"CREATE TABLE locations ( id INTEGER PRIMARY KEY AUTOINCREMENT, latitude REAL DEFAULT 0.0, longitude REAL DEFAULT 0.0, accuracy REAL DEFAULT 0.0, timestamp INTEGER DEFAULT 0, chat_id INTEGER DEFAULT 0, from_id INTEGER DEFAULT 0);",
params![]
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX locations_index1 ON locations (from_id);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX locations_index2 ON locations (timestamp);",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE chats ADD COLUMN locations_send_begin INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE chats ADD COLUMN locations_send_until INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE chats ADD COLUMN locations_last_sent INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX chats_index3 ON chats (locations_send_until);",
params![],
);
dbversion = 53;
dc_sqlite3_set_config_int(context, sql, "dbversion", 53);
}
if dbversion < 54 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE msgs ADD COLUMN location_id INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_execute(
context,
sql,
"CREATE INDEX msgs_index6 ON msgs (location_id);",
params![],
);
dbversion = 54;
dc_sqlite3_set_config_int(context, sql, "dbversion", 54);
}
if dbversion < 55 {
dc_sqlite3_execute(
context,
sql,
"ALTER TABLE locations ADD COLUMN independent INTEGER DEFAULT 0;",
params![],
);
dc_sqlite3_set_config_int(context, sql, "dbversion", 55);
}
if 0 != recalc_fingerprints {
let rows = if let Some(mut stmt) =
dc_sqlite3_prepare(context, sql, "SELECT addr FROM acpeerstates;")
{
stmt.query_map(params![], |row| row.get::<_, String>(0))
.and_then(|res| res.collect::<rusqlite::Result<Vec<_>>>())
.ok()
} else {
None
};
if let Some(addrs) = rows {
for addr in addrs {
if let Some(ref mut peerstate) =
Peerstate::from_addr(context, sql, &addr)
{
peerstate.recalc_fingerprint();
peerstate.save_to_db(sql, false);
}
}
}
}
if 0 != update_file_paths {
let repl_from = dc_sqlite3_get_config(
context,
sql,
"backup_for",
Some(as_str(context.get_blobdir())),
)
.unwrap();
let repl_from = dc_ensure_no_slash_safe(&repl_from);
dc_sqlite3_execute(
context,
sql,
"UPDATE msgs SET param=replace(param, \'f=?/\', \'f=$BLOBDIR/\')",
params![repl_from],
);
dc_sqlite3_execute(
context,
sql,
"UPDATE chats SET param=replace(param, \'i=?/\', \'i=$BLOBDIR/\');",
params![repl_from],
);
dc_sqlite3_set_config(context, sql, "backup_for", None);
}
current_block = 12024807525273687499;
}
}
} else {
current_block = 12024807525273687499;
}
match current_block {
13628706266672894061 => {}
_ => {
info!(context, 0, "Opened \"{:?}\".", dbfile.as_ref(),);
return 1;
}
}
sql.close(context);
0
}
// handle configurations, private
pub fn dc_sqlite3_set_config(
context: &Context,
sql: &SQLite,
key: impl AsRef<str>,
value: Option<&str>,
) -> libc::c_int {
let key = key.as_ref();
if !sql.is_open() {
error!(context, 0, "dc_sqlite3_set_config(): Database not ready.");
return 0;
}
let good;
if let Some(ref value) = value {
if let Some(exists) =
dc_sqlite3_prepare(context, sql, "SELECT value FROM config WHERE keyname=?;")
.and_then(|mut stmt| stmt.exists(params![]).ok())
{
if exists {
good = dc_sqlite3_execute(
context,
sql,
"UPDATE config SET value=? WHERE keyname=?;",
params![value, key],
);
} else {
good = dc_sqlite3_execute(
context,
sql,
"INSERT INTO config (keyname, value) VALUES (?, ?);",
params![key, value],
);
}
} else {
error!(context, 0, "dc_sqlite3_set_config(): Cannot read value.",);
return 0;
}
} else {
good = dc_sqlite3_execute(
context,
sql,
"DELETE FROM config WHERE keyname=?;",
params![key],
);
}
if !good {
error!(context, 0, "dc_sqlite3_set_config(): Cannot change value.",);
return 0;
}
1
}
// TODO: Remove the option from the return type
pub fn dc_sqlite3_prepare<'a>(
context: &Context,
sql: &'a SQLite,
querystr: &'a str,
) -> Option<Statement<'a>> {
// TODO: remove once it is not used anymore
unimplemented!()
}
pub fn dc_sqlite3_is_open(sql: &SQLite) -> libc::c_int {
sql.is_open() as libc::c_int
}
/* the returned string must be free()'d, returns NULL on errors */
pub fn dc_sqlite3_get_config(
context: &Context,
sql: &SQLite,
key: impl AsRef<str>,
def: Option<&str>,
) -> Option<String> {
if !sql.is_open() || key.as_ref().is_empty() {
return None;
}
dc_sqlite3_query_row(
context,
sql,
"SELECT value FROM config WHERE keyname=?;",
params![key.as_ref()],
0,
)
.or_else(|| def.map(|s| s.to_string()))
}
pub fn dc_sqlite3_execute<P>(
context: &Context,
sql: &SQLite,
querystr: impl AsRef<str>,
params: P,
) -> bool
where
P: IntoIterator,
P::Item: rusqlite::ToSql,
{
if let Some(mut stmt) = dc_sqlite3_prepare(context, sql, querystr.as_ref()) {
match stmt.execute(params) {
Ok(_) => true,
Err(err) => {
error!(
context,
0,
"Cannot execute \"{}\". ({})",
querystr.as_ref(),
err
);
false
}
}
} else {
false
}
}
// TODO Remove the Option<> from the return type.
pub fn dc_sqlite3_query_row<P, T>(
context: &Context,
sql: &SQLite,
query: &str,
params: P,
column: usize,
) -> Option<T>
where
P: IntoIterator,
P::Item: rusqlite::ToSql,
T: rusqlite::types::FromSql,
{
match sql.query_row(query, params, |row| row.get::<_, T>(column)) {
Ok(res) => Some(res),
Err(err) => {
error!(context, 0, "sql: Failed query_row: {}", err);
None
}
}
}
pub fn dc_sqlite3_set_config_int(
context: &Context,
sql: &SQLite,
key: impl AsRef<str>,
value: i32,
) -> libc::c_int {
dc_sqlite3_set_config(context, sql, key, Some(&format!("{}", value)))
}
pub fn dc_sqlite3_get_config_int(
context: &Context,
sql: &SQLite,
key: impl AsRef<str>,
def: i32,
) -> i32 {
dc_sqlite3_get_config(context, sql, key, None)
.and_then(|s| s.parse().ok())
.unwrap_or_else(|| def)
}
pub fn dc_sqlite3_table_exists(
_context: &Context,
sql: &SQLite,
name: impl AsRef<str>,
) -> libc::c_int {
match sql.table_exists(name) {
true => 1,
false => 0,
}
}
pub fn dc_sqlite3_set_config_int64(
context: &Context,
sql: &SQLite,
key: impl AsRef<str>,
value: i64,
) -> libc::c_int {
dc_sqlite3_set_config(context, sql, key, Some(&format!("{}", value)))
}
pub fn dc_sqlite3_get_config_int64(
context: &Context,
sql: &SQLite,
key: impl AsRef<str>,
def: Option<i64>,
) -> i64 {
let ret = dc_sqlite3_get_config(context, sql, key, None);
ret.map(|r| r.parse().unwrap_or_default())
.unwrap_or_else(|| def.unwrap_or_default())
}
pub fn dc_sqlite3_try_execute(
context: &Context,
sql: &SQLite,
querystr: impl AsRef<str>,
) -> libc::c_int {
// same as dc_sqlite3_execute() but does not pass error to ui
if let Some(mut stmt) = dc_sqlite3_prepare(context, sql, querystr.as_ref()) {
match stmt.execute(params![]) {
Ok(_) => 1,
Err(err) => {
warn!(
context,
0,
"Try-execute for \"{}\" failed: {}",
querystr.as_ref(),
err,
);
0
}
}
} else {
0
}
}
pub fn dc_sqlite3_get_rowid(
context: &Context,
sql: &SQLite,
table: impl AsRef<str>,
field: impl AsRef<str>,
value: impl AsRef<str>,
) -> u32 {
// alternative to sqlite3_last_insert_rowid() which MUST NOT be used due to race conditions, see comment above.
// the ORDER BY ensures, this function always returns the most recent id,
// eg. if a Message-ID is splitted into different messages.
if let Some(conn) = &*sql.connection.read().unwrap() {
match conn.query_row(
&format!(
"SELECT id FROM ? WHERE {}=? ORDER BY id DESC",
field.as_ref()
),
&[table.as_ref(), value.as_ref()],
|row| row.get::<_, u32>(0),
) {
Ok(id) => id,
Err(err) => {
error!(context, 0, "sql: Failed to retrieve rowid: {}", err);
0
}
}
} else {
0
}
}
pub fn dc_sqlite3_get_rowid2(
context: &Context,
sql: &SQLite,
table: impl AsRef<str>,
field: impl AsRef<str>,
value: i64,
field2: impl AsRef<str>,
value2: i32,
) -> u32 {
// same as dc_sqlite3_get_rowid() with a key over two columns
if let Some(conn) = &*sql.connection.read().unwrap() {
match conn.query_row(
&format!(
"SELECT id FROM ? WHERE {}=? AND {}=? ORDER BY id DESC",
field.as_ref(),
field2.as_ref(),
),
params![table.as_ref(), value, value2],
|row| row.get::<_, u32>(0),
) {
Ok(id) => id,
Err(err) => {
error!(context, 0, "sql: Failed to retrieve rowid2: {}", err);
0
}
}
} else {
0
}
}
pub fn dc_housekeeping(context: &Context) {
let mut files_in_use = HashSet::new();
let mut unreferenced_count = 0;
info!(context, 0, "Start housekeeping...");
maybe_add_from_param(
context,
&mut files_in_use,
"SELECT param FROM msgs WHERE chat_id!=3 AND type!=10;",
'f' as i32,
);
maybe_add_from_param(
context,
&mut files_in_use,
"SELECT param FROM jobs;",
'f' as i32,
);
maybe_add_from_param(
context,
&mut files_in_use,
"SELECT param FROM chats;",
'i' as i32,
);
maybe_add_from_param(
context,
&mut files_in_use,
"SELECT param FROM contacts;",
'i' as i32,
);
if let Some(mut stmt) = dc_sqlite3_prepare(context, &context.sql, "SELECT value FROM config;") {
match stmt.query_map(params![], |row| row.get::<_, String>(0)) {
Ok(rows) => {
for row in rows {
maybe_add_file(&mut files_in_use, row.expect("invalid sql"));
}
}
Err(err) => {
warn!(context, 0, "sql: failed query: {}", err);
}
}
}
info!(context, 0, "{} files in use.", files_in_use.len(),);
/* go through directory and delete unused files */
let p = std::path::Path::new(as_str(context.get_blobdir()));
match std::fs::read_dir(p) {
Ok(dir_handle) => {
/* avoid deletion of files that are just created to build a message object */
let diff = std::time::Duration::from_secs(60 * 60);
let keep_files_newer_than = std::time::SystemTime::now().checked_sub(diff).unwrap();
for entry in dir_handle {
if entry.is_err() {
break;
}
let entry = entry.unwrap();
let name_f = entry.file_name();
let name_c = to_cstring(name_f.to_string_lossy());
if unsafe {
is_file_in_use(&mut files_in_use, 0 as *const libc::c_char, name_c.as_ptr())
} || unsafe {
is_file_in_use(
&mut files_in_use,
b".increation\x00" as *const u8 as *const libc::c_char,
name_c.as_ptr(),
)
} || unsafe {
is_file_in_use(
&mut files_in_use,
b".waveform\x00" as *const u8 as *const libc::c_char,
name_c.as_ptr(),
)
} || unsafe {
is_file_in_use(
&mut files_in_use,
b"-preview.jpg\x00" as *const u8 as *const libc::c_char,
name_c.as_ptr(),
)
} {
continue;
}
unreferenced_count += 1;
match std::fs::metadata(entry.path()) {
Ok(stats) => {
let created = stats.created().is_ok()
&& stats.created().unwrap() > keep_files_newer_than;
let modified = stats.modified().is_ok()
&& stats.modified().unwrap() > keep_files_newer_than;
let accessed = stats.accessed().is_ok()
&& stats.accessed().unwrap() > keep_files_newer_than;
if created || modified || accessed {
info!(
context,
0,
"Housekeeping: Keeping new unreferenced file #{}: {:?}",
unreferenced_count,
entry.file_name(),
);
continue;
}
}
Err(_) => {}
}
info!(
context,
0,
"Housekeeping: Deleting unreferenced file #{}: {:?}",
unreferenced_count,
entry.file_name()
);
let path = to_cstring(entry.path().to_str().unwrap());
unsafe { dc_delete_file(context, path.as_ptr()) };
}
}
Err(err) => {
warn!(
context,
0,
"Housekeeping: Cannot open {}. ({})",
as_str(context.get_blobdir()),
err
);
}
}
info!(context, 0, "Housekeeping done.",);
}
unsafe fn is_file_in_use(
files_in_use: &HashSet<String>,
namespc: *const libc::c_char,
name: *const libc::c_char,
) -> bool {
let name_to_check = dc_strdup(name);
if !namespc.is_null() {
let name_len: libc::c_int = strlen(name) as libc::c_int;
let namespc_len: libc::c_int = strlen(namespc) as libc::c_int;
if name_len <= namespc_len
|| strcmp(&*name.offset((name_len - namespc_len) as isize), namespc) != 0
{
return false;
}
*name_to_check.offset((name_len - namespc_len) as isize) = 0 as libc::c_char
}
let contains = files_in_use.contains(as_str(name_to_check));
free(name_to_check as *mut libc::c_void);
contains
}
fn maybe_add_file(files_in_use: &mut HashSet<String>, file: impl AsRef<str>) {
if !file.as_ref().starts_with("$BLOBDIR") {
return;
}
files_in_use.insert(file.as_ref()[9..].into());
}
fn maybe_add_from_param(
context: &Context,
files_in_use: &mut HashSet<String>,
query: &str,
param_id: libc::c_int,
) {
let param = unsafe { dc_param_new() };
if let Some(ref mut stmt) = dc_sqlite3_prepare(context, &context.sql, query) {
match stmt.query_row(NO_PARAMS, |row| {
let v = to_cstring(row.get::<_, String>(0)?);
unsafe {
dc_param_set_packed(param, v.as_ptr() as *const libc::c_char);
let file = dc_param_get(param, param_id, 0 as *const libc::c_char);
if !file.is_null() {
maybe_add_file(files_in_use, as_str(file));
free(file as *mut libc::c_void);
}
}
Ok(())
}) {
Ok(_) => {}
Err(err) => {
warn!(context, 0, "sql: failed to add_from_param: {}", err);
}
}
}
unsafe { dc_param_unref(param) };
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_maybe_add_file() {
let mut files = Default::default();
maybe_add_file(&mut files, "$BLOBDIR/hello");
maybe_add_file(&mut files, "$BLOBDIR/world.txt");
maybe_add_file(&mut files, "world2.txt");
assert!(files.contains("hello"));
assert!(files.contains("world.txt"));
assert!(!files.contains("world2.txt"));
}
#[test]
fn test_is_file_in_use() {
let mut files = Default::default();
maybe_add_file(&mut files, "$BLOBDIR/hello");
maybe_add_file(&mut files, "$BLOBDIR/world.txt");
maybe_add_file(&mut files, "world2.txt");
println!("{:?}", files);
assert!(unsafe {
is_file_in_use(
&mut files,
std::ptr::null(),
b"hello\x00" as *const u8 as *const _,
)
});
assert!(!unsafe {
is_file_in_use(
&mut files,
b".txt\x00" as *const u8 as *const _,
b"hello\x00" as *const u8 as *const _,
)
});
assert!(unsafe {
is_file_in_use(
&mut files,
b"-suffix\x00" as *const u8 as *const _,
b"world.txt-suffix\x00" as *const u8 as *const _,
)
});
}
}