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more work on singleton-based DB

This commit is contained in:
Andrew Dolgov 2013-04-17 15:36:34 +04:00
parent ba68b6815a
commit 404e2e3603
18 changed files with 143 additions and 188 deletions
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1
api/index.php
View File

@ -13,6 +13,7 @@
define('TTRSS_SESSION_NAME', 'ttrss_api_sid');
define('NO_SESSION_AUTOSTART', true);
require_once "autoload.php";
require_once "db.php";
require_once "db-prefs.php";
require_once "functions.php";

1
backend.php
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@ -37,6 +37,7 @@
@$csrf_token = $_REQUEST['csrf_token'];
require_once "autoload.php";
require_once "sessions.php";
require_once "functions.php";
require_once "config.php";

8
classes/db.php
View File

@ -2,6 +2,7 @@
class Db implements IDb {
private static $instance;
private $adapter;
private $link;
private function __construct() {
switch (DB_TYPE) {
@ -12,11 +13,11 @@ class Db implements IDb {
$this->adapter = new Db_Pgsql();
break;
default:
die("Unknown DB_TYPE: " . DB_TYPE);
user_error("Unknown DB_TYPE: " . DB_TYPE);
}
$this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT);
$this->adapter->init();
$this->link = $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT);
}
private function __clone() {
@ -40,6 +41,7 @@ class Db implements IDb {
function connect($host, $user, $pass, $db, $port) {
//return $this->adapter->connect($host, $user, $pass, $db, $port);
return $this->link;
}
function escape_string($s, $strip_tags = true) {

3
classes/db/mysql.php
View File

@ -9,6 +9,9 @@ class Db_Mysql implements IDb {
if (!$result) {
die("Can't select DB: " . mysql_error($this->link));
}
$this->init();
return $this->link;
} else {
die("Unable to connect to database (as $user to $host, database $db): " . mysql_error());

2
classes/db/pgsql.php
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@ -23,6 +23,8 @@ class Db_Pgsql implements IDb {
die("Unable to connect to database (as $user to $host, database $db):" . pg_last_error());
}
$this->init();
return $this->link;
}

73
classes/sessionhandler.php Normal file
View File

@ -0,0 +1,73 @@
<?php
class SessionHandler implements SessionHandlerInterface {
private static $instance;
private $db;
public static function get() {
if (self::$instance == null)
self::$instance = new self();
return self::$instance;
}
private function __construct() {
$this->db = Db::get();
session_set_save_handler("SessionHandler::open", "SessionHandler::close",
"SessionHandler::read", "SessionHandler::write", "SessionHandler::destroy",
"SessionHandler::gc");
}
public static function open($save_path, $name) { }
public static function read ($id){
$query = "SELECT data FROM ttrss_sessions WHERE id='$id'";
$res = $this->db->query("SELECT data FROM ttrss_sessions WHERE id='$id'");
if ($this->db->num_rows($res) != 1) {
"INSERT INTO ttrss_sessions (id, data, expire)
VALUES ('$id', '$data', '$expire')";
} else {
$data = $this->db->fetch_result($res, 0, "data");
return base64_decode($data);
}
}
public static function write($id, $data) {
if (! $data) {
return false;
}
$data = $this->db->escape_string( base64_encode($data), false);
$expire = time() + max(SESSION_COOKIE_LIFETIME, 86400);
$query = "UPDATE ttrss_sessions SET data='$data',
expire = '$expire' WHERE id='$id'";
$this->db->query( $query);
return true;
}
public static function close () { }
public static function destroy($session_id) {
$this->db->query("DELETE FROM ttrss_sessions WHERE id = '$session_id'");
return true;
}
public static function gc($maxLifeTime) {
$this->db->query("DELETE FROM ttrss_sessions WHERE expire < " time() - $maxLifeTime);
return true;
}
}
?>

12
include/autoload.php Normal file
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@ -0,0 +1,12 @@
<?php
function __autoload($class) {
$class_file = str_replace("_", "/", strtolower(basename($class)));
$file = dirname(__FILE__)."/../classes/$class_file.php";
if (file_exists($file)) {
require $file;
}
}
?>

114
include/db.php
View File

@ -1,138 +1,44 @@
<?php
require_once "config.php";
function db_connect($host, $user, $pass, $db) {
if (DB_TYPE == "pgsql") {
$string = "dbname=$db user=$user";
if ($pass) {
$string .= " password=$pass";
}
if ($host) {
$string .= " host=$host";
}
if (defined('DB_PORT') && DB_PORT) {
$string = "$string port=" . DB_PORT;
}
$link = pg_connect($string);
if (!$link) {
die("Unable to connect to database (as $user to $host, database $db):" . pg_last_error());
}
return $link;
} else if (DB_TYPE == "mysql") {
$link = mysql_connect($host, $user, $pass);
if ($link) {
$result = mysql_select_db($db, $link);
if (!$result) {
die("Can't select DB: " . mysql_error($link));
}
return $link;
} else {
die("Unable to connect to database (as $user to $host, database $db): " . mysql_error());
}
}
return Db::get()->connect($host, $user, $pass, $db, 0);
}
function db_escape_string($link, $s, $strip_tags = true) {
if ($strip_tags) $s = strip_tags($s);
if (DB_TYPE == "pgsql") {
return pg_escape_string($link, $s);
} else {
return mysql_real_escape_string($s, $link);
}
return Db::get()->escape_string($s, $strip_tags);
}
function db_query($link, $query, $die_on_error = true) {
if (DB_TYPE == "pgsql") {
$result = pg_query($link, $query);
if (!$result) {
$query = htmlspecialchars($query); // just in case
if ($die_on_error) {
die("Query <i>$query</i> failed [$result]: " . ($link ? pg_last_error($link) : "No connection"));
}
}
return $result;
} else if (DB_TYPE == "mysql") {
$result = mysql_query($query, $link);
if (!$result) {
$query = htmlspecialchars($query);
if ($die_on_error) {
die("Query <i>$query</i> failed: " . ($link ? mysql_error($link) : "No connection"));
}
}
return $result;
}
return Db::get()->query($query, $die_on_error);
}
function db_fetch_assoc($result) {
if (DB_TYPE == "pgsql") {
return pg_fetch_assoc($result);
} else if (DB_TYPE == "mysql") {
return mysql_fetch_assoc($result);
}
return Db::get()->fetch_assoc($result);
}
function db_num_rows($result) {
if (DB_TYPE == "pgsql") {
return pg_num_rows($result);
} else if (DB_TYPE == "mysql") {
return mysql_num_rows($result);
}
return Db::get()->num_rows($result);
}
function db_fetch_result($result, $row, $param) {
if (DB_TYPE == "pgsql") {
return pg_fetch_result($result, $row, $param);
} else if (DB_TYPE == "mysql") {
// I hate incoherent naming of PHP functions
return mysql_result($result, $row, $param);
}
}
function db_unescape_string($str) {
$tmp = str_replace("\\\"", "\"", $str);
$tmp = str_replace("\\'", "'", $tmp);
return $tmp;
return Db::get()->fetch_result($result, $row, $param);
}
function db_close($link) {
if (DB_TYPE == "pgsql") {
return pg_close($link);
} else if (DB_TYPE == "mysql") {
return mysql_close($link);
}
return Db::get()->close();
}
function db_affected_rows($link, $result) {
if (DB_TYPE == "pgsql") {
return pg_affected_rows($result);
} else if (DB_TYPE == "mysql") {
return mysql_affected_rows($link);
}
return Db::get()->affected_rows($result);
}
function db_last_error($link) {
if (DB_TYPE == "pgsql") {
return pg_last_error($link);
} else if (DB_TYPE == "mysql") {
return mysql_error($link);
}
return Db::get()->last_error();
}
function db_quote($str){
return("'$str'");
return Db::get()->quote($str);
}
?>

8
include/errorhandler.php
View File

@ -1,7 +1,7 @@
<?php
// TODO: make configurable
require_once "classes/logger.php";
require_once "classes/logger/sql.php";
//require_once "classes/logger.php";
//require_once "classes/logger/sql.php";
function ttrss_error_handler($errno, $errstr, $file, $line, $context) {
global $logger;
@ -42,6 +42,6 @@ function ttrss_fatal_handler() {
}
}
register_shutdown_function('ttrss_fatal_handler');
set_error_handler('ttrss_error_handler');
//register_shutdown_function('ttrss_fatal_handler');
//set_error_handler('ttrss_error_handler');
?>

11
include/functions.php
View File

@ -10,17 +10,6 @@
$fetch_last_content_type = false;
$pluginhost = false;
function __autoload($class) {
$class_file = str_replace("_", "/", strtolower(basename($class)));
$file = dirname(__FILE__)."/../classes/$class_file.php";
if (file_exists($file)) {
require $file;
}
}
mb_internal_encoding("UTF-8");
date_default_timezone_set('UTC');
if (defined('E_DEPRECATED')) {

90
include/sessions.php
View File

@ -2,7 +2,8 @@
// Original from http://www.daniweb.com/code/snippet43.html
require_once "config.php";
require_once "db.php";
require_once "classes/db.php";
require_once "autoload.php";
require_once "errorhandler.php";
require_once "lib/accept-to-gettext.php";
require_once "lib/gettext/gettext.inc";
@ -22,14 +23,12 @@
ini_set("session.gc_maxlifetime", $session_expire);
ini_set("session.cookie_lifetime", min(0, SESSION_COOKIE_LIFETIME));
global $session_connection;
function session_get_schema_version($link, $nocache = false) {
function session_get_schema_version($nocache = false) {
global $schema_version;
if (!$schema_version) {
$result = db_query($link, "SELECT schema_version FROM ttrss_version");
$version = db_fetch_result($result, 0, "schema_version");
$result = Db::get()->query("SELECT schema_version FROM ttrss_version");
$version = Db::get()->fetch_result($result, 0, "schema_version");
$schema_version = $version;
return $version;
} else {
@ -39,7 +38,6 @@
function validate_session($link) {
if (SINGLE_USER_MODE) return true;
if (!$link) return false;
if (VERSION != $_SESSION["version"]) return false;
@ -64,21 +62,21 @@
return false;
}
if ($_SESSION["ref_schema_version"] != session_get_schema_version($link, true))
if ($_SESSION["ref_schema_version"] != session_get_schema_version(true))
return false;
if (sha1($_SERVER['HTTP_USER_AGENT']) != $_SESSION["user_agent"])
return false;
if ($_SESSION["uid"]) {
$result = db_query($link,
$result = Db::get()->query(
"SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
// user not found
if (db_num_rows($result) == 0) {
if (Db::get()->num_rows($result) == 0) {
return false;
} else {
$pwd_hash = db_fetch_result($result, 0, "pwd_hash");
$pwd_hash = Db::get()->fetch_result($result, 0, "pwd_hash");
if ($pwd_hash != $_SESSION["pwd_hash"]) {
return false;
@ -86,101 +84,63 @@
}
}
/* if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
//print_r($_SESSION);
if (time() > $_SESSION["cookie_lifetime"]) {
return false;
}
} */
return true;
}
function ttrss_open ($s, $n) {
global $session_connection;
$session_connection = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
return true;
}
function ttrss_read ($id){
global $session_expire;
global $session_connection,$session_read;
$res = Db::get()->query("SELECT data FROM ttrss_sessions WHERE id='$id'");
$query = "SELECT data FROM ttrss_sessions WHERE id='$id'";
if (Db::get()->num_rows($res) != 1) {
$res = db_query($session_connection, $query);
$expire = time() + $session_expire;
Db::get()->query("INSERT INTO ttrss_sessions (id, data, expire)
VALUES ('$id', '', '$expire')");
if (db_num_rows($res) != 1) {
return "";
} else {
$session_read = db_fetch_assoc($res);
$session_read["data"] = base64_decode($session_read["data"]);
return $session_read["data"];
return base64_decode(Db::get()->fetch_result($res, 0, "data"));
}
}
function ttrss_write ($id, $data) {
global $session_expire;
if (! $data) {
return false;
}
global $session_connection, $session_read, $session_expire;
$data = base64_encode($data);
$expire = time() + $session_expire;
$data = db_escape_string($session_connection, base64_encode($data), false);
Db::get()->query("UPDATE ttrss_sessions SET data='$data', expire='$expire' WHERE id='$id'");
if ($session_read) {
$query = "UPDATE ttrss_sessions SET data='$data',
expire='$expire' WHERE id='$id'";
} else {
$query = "INSERT INTO ttrss_sessions (id, data, expire)
VALUES ('$id', '$data', '$expire')";
}
db_query($session_connection, $query);
return true;
}
function ttrss_close () {
global $session_connection;
//db_close($session_connection);
return true;
}
function ttrss_destroy ($id) {
global $session_connection;
$query = "DELETE FROM ttrss_sessions WHERE id = '$id'";
db_query($session_connection, $query);
function ttrss_destroy($id) {
Db::get()->query("DELETE FROM ttrss_sessions WHERE id = '$id'");
return true;
}
function ttrss_gc ($expire) {
global $session_connection;
$query = "DELETE FROM ttrss_sessions WHERE expire < " . time();
db_query($session_connection, $query);
Db::get()->query("DELETE FROM ttrss_sessions WHERE expire < " . time());
}
if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) {
session_set_save_handler("ttrss_open",
"ttrss_close", "ttrss_read", "ttrss_write",
"ttrss_destroy", "ttrss_gc");
register_shutdown_function('session_write_close');
}
if (!defined('NO_SESSION_AUTOSTART')) {

1
index.php
View File

@ -19,6 +19,7 @@
set_include_path(dirname(__FILE__) ."/include" . PATH_SEPARATOR .
get_include_path());
require_once "autoload.php";
require_once "sessions.php";
require_once "functions.php";
require_once "sanity_check.php";

1
opml.php
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@ -2,6 +2,7 @@
set_include_path(dirname(__FILE__) ."/include" . PATH_SEPARATOR .
get_include_path());
require_once "autoload.php";
require_once "functions.php";
require_once "sessions.php";
require_once "sanity_check.php";

1
prefs.php
View File

@ -12,6 +12,7 @@
exit;
}
require_once "autoload.php";
require_once "sessions.php";
require_once "functions.php";
require_once "sanity_check.php";

1
public.php
View File

@ -17,6 +17,7 @@
$_REQUEST = array_map('stripslashes_deep', $_REQUEST);
}
require_once "autoload.php";
require_once "sessions.php";
require_once "functions.php";
require_once "sanity_check.php";

2
register.php
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@ -8,7 +8,7 @@
get_include_path());
require_once 'classes/ttrssmailer.php';
require_once "autoload.php";
require_once "functions.php";
require_once "sessions.php";
require_once "sanity_check.php";

1
update.php
View File

@ -7,6 +7,7 @@
chdir(dirname(__FILE__));
require_once "autoload.php";
require_once "functions.php";
require_once "rssfuncs.php";
require_once "config.php";

1
update_daemon2.php
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@ -14,6 +14,7 @@
define('DAEMON_EXTENDED_DEBUG', true);
}
require_once "autoload.php";
require_once "functions.php";
require_once "rssfuncs.php";
require_once "sanity_check.php";