/
functions.php
1929 lines (1497 loc) · 53.5 KB
/
functions.php
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<?php
define('EXPECTED_CONFIG_VERSION', 26);
define('SCHEMA_VERSION', 139);
define('LABEL_BASE_INDEX', -1024);
define('PLUGIN_FEED_BASE_INDEX', -128);
define('COOKIE_LIFETIME_LONG', 86400*365);
$fetch_last_error = false;
$fetch_last_error_code = false;
$fetch_last_content_type = false;
$fetch_last_error_content = false; // curl only for the time being
$fetch_effective_url = false;
$fetch_curl_used = false;
libxml_disable_entity_loader(true);
libxml_use_internal_errors(true);
// separate test because this is included before sanity checks
if (function_exists("mb_internal_encoding")) mb_internal_encoding("UTF-8");
date_default_timezone_set('UTC');
if (defined('E_DEPRECATED')) {
error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
} else {
error_reporting(E_ALL & ~E_NOTICE);
}
require_once 'config.php';
/**
* Define a constant if not already defined
*/
function define_default($name, $value) {
defined($name) or define($name, $value);
}
/* Some tunables you can override in config.php using define(): */
define_default('FEED_FETCH_TIMEOUT', 45);
// How may seconds to wait for response when requesting feed from a site
define_default('FEED_FETCH_NO_CACHE_TIMEOUT', 15);
// How may seconds to wait for response when requesting feed from a
// site when that feed wasn't cached before
define_default('FILE_FETCH_TIMEOUT', 45);
// Default timeout when fetching files from remote sites
define_default('FILE_FETCH_CONNECT_TIMEOUT', 15);
// How many seconds to wait for initial response from website when
// fetching files from remote sites
define_default('DAEMON_UPDATE_LOGIN_LIMIT', 30);
// stop updating feeds if users haven't logged in for X days
define_default('DAEMON_FEED_LIMIT', 500);
// feed limit for one update batch
define_default('DAEMON_SLEEP_INTERVAL', 120);
// default sleep interval between feed updates (sec)
define_default('MAX_CACHE_FILE_SIZE', 64*1024*1024);
// do not cache files larger than that (bytes)
define_default('MAX_DOWNLOAD_FILE_SIZE', 16*1024*1024);
// do not download general files larger than that (bytes)
define_default('CACHE_MAX_DAYS', 7);
// max age in days for various automatically cached (temporary) files
define_default('MAX_CONDITIONAL_INTERVAL', 3600*12);
// max interval between forced unconditional updates for servers
// not complying with http if-modified-since (seconds)
define_default('MAX_FETCH_REQUESTS_PER_HOST', 25);
// a maximum amount of allowed HTTP requests per destination host
// during a single update (i.e. within PHP process lifetime)
// this is used to not cause excessive load on the origin server on
// e.g. feed subscription when all articles are being processes
/* tunables end here */
if (DB_TYPE == "pgsql") {
define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
} else {
define('SUBSTRING_FOR_DATE', 'SUBSTRING');
}
/**
* Return available translations names.
*
* @access public
* @return array A array of available translations.
*/
function get_translations() {
$tr = array(
"auto" => __("Detect automatically"),
"ar_SA" => "العربيّة (Arabic)",
"bg_BG" => "Bulgarian",
"da_DA" => "Dansk",
"ca_CA" => "Català",
"cs_CZ" => "Česky",
"en_US" => "English",
"el_GR" => "Ελληνικά",
"es_ES" => "Español (España)",
"es_LA" => "Español",
"de_DE" => "Deutsch",
"fr_FR" => "Français",
"hu_HU" => "Magyar (Hungarian)",
"it_IT" => "Italiano",
"ja_JP" => "日本語 (Japanese)",
"lv_LV" => "Latviešu",
"nb_NO" => "Norwegian bokmål",
"nl_NL" => "Dutch",
"pl_PL" => "Polski",
"ru_RU" => "Русский",
"pt_BR" => "Portuguese/Brazil",
"pt_PT" => "Portuguese/Portugal",
"zh_CN" => "Simplified Chinese",
"zh_TW" => "Traditional Chinese",
"uk_UA" => "Українська",
"sv_SE" => "Svenska",
"fi_FI" => "Suomi",
"tr_TR" => "Türkçe");
return $tr;
}
require_once "lib/accept-to-gettext.php";
require_once "lib/gettext/gettext.inc";
function startup_gettext() {
# Get locale from Accept-Language header
$lang = al2gt(array_keys(get_translations()), "text/html");
if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
$lang = _TRANSLATION_OVERRIDE_DEFAULT;
}
if ($_SESSION["uid"] && get_schema_version() >= 120) {
$pref_lang = get_pref("USER_LANGUAGE", $_SESSION["uid"]);
if ($pref_lang && $pref_lang != 'auto') {
$lang = $pref_lang;
}
}
if ($lang) {
if (defined('LC_MESSAGES')) {
_setlocale(LC_MESSAGES, $lang);
} else if (defined('LC_ALL')) {
_setlocale(LC_ALL, $lang);
}
_bindtextdomain("messages", "locale");
_textdomain("messages");
_bind_textdomain_codeset("messages", "UTF-8");
}
}
require_once 'db-prefs.php';
require_once 'controls.php';
define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . get_version() . ' (http://tt-rss.org/)');
ini_set('user_agent', SELF_USER_AGENT);
$schema_version = false;
// TODO: compat wrapper, remove at some point
function _debug($msg) {
Debug::log($msg);
}
function reset_fetch_domain_quota() {
global $fetch_domain_hits;
$fetch_domain_hits = [];
}
// TODO: max_size currently only works for CURL transfers
// TODO: multiple-argument way is deprecated, first parameter is a hash now
function fetch_file_contents($options /* previously: 0: $url , 1: $type = false, 2: $login = false, 3: $pass = false,
4: $post_query = false, 5: $timeout = false, 6: $timestamp = 0, 7: $useragent = false*/) {
global $fetch_last_error;
global $fetch_last_error_code;
global $fetch_last_error_content;
global $fetch_last_content_type;
global $fetch_last_modified;
global $fetch_effective_url;
global $fetch_curl_used;
global $fetch_domain_hits;
$fetch_last_error = false;
$fetch_last_error_code = -1;
$fetch_last_error_content = "";
$fetch_last_content_type = "";
$fetch_curl_used = false;
$fetch_last_modified = "";
$fetch_effective_url = "";
if (!is_array($fetch_domain_hits))
$fetch_domain_hits = [];
if (!is_array($options)) {
// falling back on compatibility shim
$option_names = [ "url", "type", "login", "pass", "post_query", "timeout", "last_modified", "useragent" ];
$tmp = [];
for ($i = 0; $i < func_num_args(); $i++) {
$tmp[$option_names[$i]] = func_get_arg($i);
}
$options = $tmp;
/*$options = array(
"url" => func_get_arg(0),
"type" => @func_get_arg(1),
"login" => @func_get_arg(2),
"pass" => @func_get_arg(3),
"post_query" => @func_get_arg(4),
"timeout" => @func_get_arg(5),
"timestamp" => @func_get_arg(6),
"useragent" => @func_get_arg(7)
); */
}
$url = $options["url"];
$type = isset($options["type"]) ? $options["type"] : false;
$login = isset($options["login"]) ? $options["login"] : false;
$pass = isset($options["pass"]) ? $options["pass"] : false;
$post_query = isset($options["post_query"]) ? $options["post_query"] : false;
$timeout = isset($options["timeout"]) ? $options["timeout"] : false;
$last_modified = isset($options["last_modified"]) ? $options["last_modified"] : "";
$useragent = isset($options["useragent"]) ? $options["useragent"] : false;
$followlocation = isset($options["followlocation"]) ? $options["followlocation"] : true;
$max_size = isset($options["max_size"]) ? $options["max_size"] : MAX_DOWNLOAD_FILE_SIZE; // in bytes
$http_accept = isset($options["http_accept"]) ? $options["http_accept"] : false;
$http_referrer = isset($options["http_referrer"]) ? $options["http_referrer"] : false;
$url = ltrim($url, ' ');
$url = str_replace(' ', '%20', $url);
if (strpos($url, "//") === 0)
$url = 'http:' . $url;
$url_host = parse_url($url, PHP_URL_HOST);
$fetch_domain_hits[$url_host] += 1;
if ($fetch_domain_hits[$url_host] > MAX_FETCH_REQUESTS_PER_HOST) {
user_error("Exceeded fetch request quota for $url_host: " . $fetch_domain_hits[$url_host], E_USER_WARNING);
#return false;
}
if (!defined('NO_CURL') && function_exists('curl_init') && !ini_get("open_basedir")) {
$fetch_curl_used = true;
$ch = curl_init($url);
$curl_http_headers = [];
if ($last_modified && !$post_query)
array_push($curl_http_headers, "If-Modified-Since: $last_modified");
if ($http_accept)
array_push($curl_http_headers, "Accept: " . $http_accept);
if (count($curl_http_headers) > 0)
curl_setopt($ch, CURLOPT_HTTPHEADER, $curl_http_headers);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir") && $followlocation);
curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_USERAGENT, $useragent ? $useragent :
SELF_USER_AGENT);
curl_setopt($ch, CURLOPT_ENCODING, "");
if ($http_referrer)
curl_setopt($ch, CURLOPT_REFERER, $http_referrer);
if ($max_size) {
curl_setopt($ch, CURLOPT_NOPROGRESS, false);
curl_setopt($ch, CURLOPT_BUFFERSIZE, 16384); // needed to get 5 arguments in progress function?
// holy shit closures in php
// download & upload are *expected* sizes respectively, could be zero
curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, function($curl_handle, $download_size, $downloaded, $upload_size, $uploaded) use( &$max_size) {
Debug::log("[curl progressfunction] $downloaded $max_size", Debug::$LOG_EXTENDED);
return ($downloaded > $max_size) ? 1 : 0; // if max size is set, abort when exceeding it
});
}
if (!ini_get("open_basedir")) {
curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
}
if (defined('_HTTP_PROXY')) {
curl_setopt($ch, CURLOPT_PROXY, _HTTP_PROXY);
}
if ($post_query) {
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_query);
}
if ($login && $pass)
curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
$ret = @curl_exec($ch);
$headers_length = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$headers = explode("\r\n", substr($ret, 0, $headers_length));
$contents = substr($ret, $headers_length);
foreach ($headers as $header) {
if (strstr($header, ": ") !== FALSE) {
list ($key, $value) = explode(": ", $header);
if (strtolower($key) == "last-modified") {
$fetch_last_modified = $value;
}
}
if (substr(strtolower($header), 0, 7) == 'http/1.') {
$fetch_last_error_code = (int) substr($header, 9, 3);
$fetch_last_error = $header;
}
}
if (curl_errno($ch) === 23 || curl_errno($ch) === 61) {
curl_setopt($ch, CURLOPT_ENCODING, 'none');
$contents = @curl_exec($ch);
}
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$fetch_last_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
$fetch_effective_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
$fetch_last_error_code = $http_code;
if ($http_code != 200 || $type && strpos($fetch_last_content_type, "$type") === false) {
if (curl_errno($ch) != 0) {
$fetch_last_error .= "; " . curl_errno($ch) . " " . curl_error($ch);
}
$fetch_last_error_content = $contents;
curl_close($ch);
return false;
}
if (!$contents) {
$fetch_last_error = curl_errno($ch) . " " . curl_error($ch);
curl_close($ch);
return false;
}
curl_close($ch);
$is_gzipped = RSSUtils::is_gzipped($contents);
if ($is_gzipped) {
$tmp = @gzdecode($contents);
if ($tmp) $contents = $tmp;
}
return $contents;
} else {
$fetch_curl_used = false;
if ($login && $pass){
$url_parts = array();
preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
$pass = urlencode($pass);
if ($url_parts[1] && $url_parts[2]) {
$url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
}
}
// TODO: should this support POST requests or not? idk
$context_options = array(
'http' => array(
'header' => array(
'Connection: close'
),
'method' => 'GET',
'ignore_errors' => true,
'timeout' => $timeout ? $timeout : FILE_FETCH_TIMEOUT,
'protocol_version'=> 1.1)
);
if (!$post_query && $last_modified)
array_push($context_options['http']['header'], "If-Modified-Since: $last_modified");
if ($http_accept)
array_push($context_options['http']['header'], "Accept: $http_accept");
if ($http_referrer)
array_push($context_options['http']['header'], "Referer: $http_referrer");
if (defined('_HTTP_PROXY')) {
$context_options['http']['request_fulluri'] = true;
$context_options['http']['proxy'] = _HTTP_PROXY;
}
$context = stream_context_create($context_options);
$old_error = error_get_last();
$fetch_effective_url = $url;
$data = @file_get_contents($url, false, $context);
if (isset($http_response_header) && is_array($http_response_header)) {
foreach ($http_response_header as $header) {
if (strstr($header, ": ") !== FALSE) {
list ($key, $value) = explode(": ", $header);
$key = strtolower($key);
if ($key == 'content-type') {
$fetch_last_content_type = $value;
// don't abort here b/c there might be more than one
// e.g. if we were being redirected -- last one is the right one
} else if ($key == 'last-modified') {
$fetch_last_modified = $value;
} else if ($key == 'location') {
$fetch_effective_url = $value;
}
}
if (substr(strtolower($header), 0, 7) == 'http/1.') {
$fetch_last_error_code = (int) substr($header, 9, 3);
$fetch_last_error = $header;
}
}
}
if ($fetch_last_error_code != 200) {
$error = error_get_last();
if ($error['message'] != $old_error['message']) {
$fetch_last_error .= "; " . $error["message"];
}
$fetch_last_error_content = $data;
return false;
}
$is_gzipped = RSSUtils::is_gzipped($data);
if ($is_gzipped) {
$tmp = @gzdecode($data);
if ($tmp) $data = $tmp;
}
return $data;
}
}
function initialize_user_prefs($uid, $profile = false) {
if (get_schema_version() < 63) $profile_qpart = "";
$pdo = DB::pdo();
$in_nested_tr = false;
try {
$pdo->beginTransaction();
} catch (Exception $e) {
$in_nested_tr = true;
}
$sth = $pdo->query("SELECT pref_name,def_value FROM ttrss_prefs");
if (!is_numeric($profile) || !$profile || get_schema_version() < 63) $profile = null;
$u_sth = $pdo->prepare("SELECT pref_name
FROM ttrss_user_prefs WHERE owner_uid = :uid AND
(profile = :profile OR (:profile IS NULL AND profile IS NULL))");
$u_sth->execute([':uid' => $uid, ':profile' => $profile]);
$active_prefs = array();
while ($line = $u_sth->fetch()) {
array_push($active_prefs, $line["pref_name"]);
}
while ($line = $sth->fetch()) {
if (array_search($line["pref_name"], $active_prefs) === FALSE) {
// print "adding " . $line["pref_name"] . "<br>";
if (get_schema_version() < 63) {
$i_sth = $pdo->prepare("INSERT INTO ttrss_user_prefs
(owner_uid,pref_name,value) VALUES
(?, ?, ?)");
$i_sth->execute([$uid, $line["pref_name"], $line["def_value"]]);
} else {
$i_sth = $pdo->prepare("INSERT INTO ttrss_user_prefs
(owner_uid,pref_name,value, profile) VALUES
(?, ?, ?, ?)");
$i_sth->execute([$uid, $line["pref_name"], $line["def_value"], $profile]);
}
}
}
if (!$in_nested_tr) $pdo->commit();
}
function get_ssl_certificate_id() {
if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
$_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
$_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
$_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
}
if ($_SERVER["SSL_CLIENT_M_SERIAL"]) {
return sha1($_SERVER["SSL_CLIENT_M_SERIAL"] .
$_SERVER["SSL_CLIENT_V_START"] .
$_SERVER["SSL_CLIENT_V_END"] .
$_SERVER["SSL_CLIENT_S_DN"]);
}
return "";
}
function authenticate_user($login, $password, $check_only = false, $service = false) {
if (!SINGLE_USER_MODE) {
$user_id = false;
$auth_module = false;
foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_AUTH_USER) as $plugin) {
$user_id = (int) $plugin->authenticate($login, $password, $service);
if ($user_id) {
$auth_module = strtolower(get_class($plugin));
break;
}
}
if ($user_id && !$check_only) {
session_start();
session_regenerate_id(true);
$_SESSION["uid"] = $user_id;
$_SESSION["auth_module"] = $auth_module;
$pdo = DB::pdo();
$sth = $pdo->prepare("SELECT login,access_level,pwd_hash FROM ttrss_users
WHERE id = ?");
$sth->execute([$user_id]);
$row = $sth->fetch();
$_SESSION["name"] = $row["login"];
$_SESSION["access_level"] = $row["access_level"];
$_SESSION["csrf_token"] = uniqid_short();
$usth = $pdo->prepare("UPDATE ttrss_users SET last_login = NOW() WHERE id = ?");
$usth->execute([$user_id]);
$_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
$_SESSION["user_agent"] = sha1($_SERVER['HTTP_USER_AGENT']);
$_SESSION["pwd_hash"] = $row["pwd_hash"];
initialize_user_prefs($_SESSION["uid"]);
return true;
}
return false;
} else {
$_SESSION["uid"] = 1;
$_SESSION["name"] = "admin";
$_SESSION["access_level"] = 10;
$_SESSION["hide_hello"] = true;
$_SESSION["hide_logout"] = true;
$_SESSION["auth_module"] = false;
if (!$_SESSION["csrf_token"]) {
$_SESSION["csrf_token"] = uniqid_short();
}
$_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
initialize_user_prefs($_SESSION["uid"]);
return true;
}
}
// this is used for user http parameters unless HTML code is actually needed
function clean($param) {
if (is_array($param)) {
return array_map("strip_tags", $param);
} else if (is_string($param)) {
return strip_tags($param);
} else {
return $param;
}
}
function clean_filename($filename) {
return basename(preg_replace("/\.\.|[\/\\\]/", "", clean($filename)));
}
function make_password($length = 12) {
$password = "";
$possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ*%+^";
$i = 0;
while ($i < $length) {
try {
$idx = function_exists("random_int") ? random_int(0, strlen($possible) - 1) : mt_rand(0, strlen($possible) - 1);
} catch (Exception $e) {
$idx = mt_rand(0, strlen($possible) - 1);
}
$char = substr($possible, $idx, 1);
if (!strstr($password, $char)) {
$password .= $char;
$i++;
}
}
return $password;
}
// this is called after user is created to initialize default feeds, labels
// or whatever else
// user preferences are checked on every login, not here
function initialize_user($uid) {
$pdo = DB::pdo();
$sth = $pdo->prepare("insert into ttrss_feeds (owner_uid,title,feed_url)
values (?, 'Tiny Tiny RSS: Forum',
'http://tt-rss.org/forum/rss.php')");
$sth->execute([$uid]);
}
function logout_user() {
@session_destroy();
if (isset($_COOKIE[session_name()])) {
setcookie(session_name(), '', time()-42000, '/');
}
session_commit();
}
function validate_csrf($csrf_token) {
return $csrf_token == $_SESSION['csrf_token'];
}
function load_user_plugins($owner_uid, $pluginhost = false) {
if (!$pluginhost) $pluginhost = PluginHost::getInstance();
if ($owner_uid && SCHEMA_VERSION >= 100) {
$plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
$pluginhost->load($plugins, PluginHost::KIND_USER, $owner_uid);
if (get_schema_version() > 100) {
$pluginhost->load_data();
}
}
}
function login_sequence() {
$pdo = Db::pdo();
if (SINGLE_USER_MODE) {
@session_start();
authenticate_user("admin", null);
startup_gettext();
load_user_plugins($_SESSION["uid"]);
} else {
if (!validate_session()) $_SESSION["uid"] = false;
if (!$_SESSION["uid"]) {
if (AUTH_AUTO_LOGIN && authenticate_user(null, null)) {
$_SESSION["ref_schema_version"] = get_schema_version(true);
} else {
authenticate_user(null, null, true);
}
if (!$_SESSION["uid"]) {
logout_user();
render_login_form();
exit;
}
} else {
/* bump login timestamp */
$sth = $pdo->prepare("UPDATE ttrss_users SET last_login = NOW() WHERE id = ?");
$sth->execute([$_SESSION['uid']]);
$_SESSION["last_login_update"] = time();
}
if ($_SESSION["uid"]) {
startup_gettext();
load_user_plugins($_SESSION["uid"]);
/* cleanup ccache */
$sth = $pdo->prepare("DELETE FROM ttrss_counters_cache WHERE owner_uid = ?
AND
(SELECT COUNT(id) FROM ttrss_feeds WHERE
ttrss_feeds.id = feed_id) = 0");
$sth->execute([$_SESSION['uid']]);
$sth = $pdo->prepare("DELETE FROM ttrss_cat_counters_cache WHERE owner_uid = ?
AND
(SELECT COUNT(id) FROM ttrss_feed_categories WHERE
ttrss_feed_categories.id = feed_id) = 0");
$sth->execute([$_SESSION['uid']]);
}
}
}
function truncate_string($str, $max_len, $suffix = '…') {
if (mb_strlen($str, "utf-8") > $max_len) {
return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
} else {
return $str;
}
}
function mb_substr_replace($original, $replacement, $position, $length) {
$startString = mb_substr($original, 0, $position, "UTF-8");
$endString = mb_substr($original, $position + $length, mb_strlen($original), "UTF-8");
$out = $startString . $replacement . $endString;
return $out;
}
function truncate_middle($str, $max_len, $suffix = '…') {
if (mb_strlen($str) > $max_len) {
return mb_substr_replace($str, $suffix, $max_len / 2, mb_strlen($str) - $max_len);
} else {
return $str;
}
}
function convert_timestamp($timestamp, $source_tz, $dest_tz) {
try {
$source_tz = new DateTimeZone($source_tz);
} catch (Exception $e) {
$source_tz = new DateTimeZone('UTC');
}
try {
$dest_tz = new DateTimeZone($dest_tz);
} catch (Exception $e) {
$dest_tz = new DateTimeZone('UTC');
}
$dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
return $dt->format('U') + $dest_tz->getOffset($dt);
}
function make_local_datetime($timestamp, $long, $owner_uid = false,
$no_smart_dt = false, $eta_min = false) {
if (!$owner_uid) $owner_uid = $_SESSION['uid'];
if (!$timestamp) $timestamp = '1970-01-01 0:00';
global $utc_tz;
global $user_tz;
if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
$timestamp = substr($timestamp, 0, 19);
# We store date in UTC internally
$dt = new DateTime($timestamp, $utc_tz);
$user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
if ($user_tz_string != 'Automatic') {
try {
if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
} catch (Exception $e) {
$user_tz = $utc_tz;
}
$tz_offset = $user_tz->getOffset($dt);
} else {
$tz_offset = (int) -$_SESSION["clientTzOffset"];
}
$user_timestamp = $dt->format('U') + $tz_offset;
if (!$no_smart_dt) {
return smart_date_time($user_timestamp,
$tz_offset, $owner_uid, $eta_min);
} else {
if ($long)
$format = get_pref('LONG_DATE_FORMAT', $owner_uid);
else
$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
return date($format, $user_timestamp);
}
}
function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) {
if (!$owner_uid) $owner_uid = $_SESSION['uid'];
if ($eta_min && time() + $tz_offset - $timestamp < 3600) {
return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp));
} else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
if (strpos((strtolower($format)), "a") === false)
return date("G:i", $timestamp);
else
return date("g:i a", $timestamp);
} else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
return date($format, $timestamp);
} else {
$format = get_pref('LONG_DATE_FORMAT', $owner_uid);
return date($format, $timestamp);
}
}
function sql_bool_to_bool($s) {
return $s && ($s !== "f" && $s !== "false"); //no-op for PDO, backwards compat for legacy layer
}
function bool_to_sql_bool($s) {
return $s ? 1 : 0;
}
// Session caching removed due to causing wrong redirects to upgrade
// script when get_schema_version() is called on an obsolete session
// created on a previous schema version.
function get_schema_version($nocache = false) {
global $schema_version;
$pdo = DB::pdo();
if (!$schema_version && !$nocache) {
$row = $pdo->query("SELECT schema_version FROM ttrss_version")->fetch();
$version = $row["schema_version"];
$schema_version = $version;
return $version;
} else {
return $schema_version;
}
}
function sanity_check() {
require_once 'errors.php';
global $ERRORS;
$error_code = 0;
$schema_version = get_schema_version(true);
if ($schema_version != SCHEMA_VERSION) {
$error_code = 5;
}
return array("code" => $error_code, "message" => $ERRORS[$error_code]);
}
function file_is_locked($filename) {
if (file_exists(LOCK_DIRECTORY . "/$filename")) {
if (function_exists('flock')) {
$fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
if ($fp) {
if (flock($fp, LOCK_EX | LOCK_NB)) {
flock($fp, LOCK_UN);
fclose($fp);
return false;
}
fclose($fp);
return true;
} else {
return false;
}
}
return true; // consider the file always locked and skip the test
} else {
return false;
}
}
function make_lockfile($filename) {
$fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
$stat_h = fstat($fp);
$stat_f = stat(LOCK_DIRECTORY . "/$filename");
if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
if ($stat_h["ino"] != $stat_f["ino"] ||
$stat_h["dev"] != $stat_f["dev"]) {
return false;
}
}
if (function_exists('posix_getpid')) {
fwrite($fp, posix_getpid() . "\n");
}
return $fp;
} else {
return false;
}
}
function make_stampfile($filename) {
$fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
if (flock($fp, LOCK_EX | LOCK_NB)) {
fwrite($fp, time() . "\n");
flock($fp, LOCK_UN);
fclose($fp);
return true;
} else {
return false;
}
}
function sql_random_function() {
if (DB_TYPE == "mysql") {
return "RAND()";
} else {
return "RANDOM()";
}
}
function getFeedUnread($feed, $is_cat = false) {
return Feeds::getFeedArticles($feed, $is_cat, true, $_SESSION["uid"]);
}
function checkbox_to_sql_bool($val) {
return ($val == "on") ? 1 : 0;
}
function uniqid_short() {
return uniqid(base_convert(rand(), 10, 36));
}
function make_init_params() {
$params = array();
foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
"ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
"CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE",
"HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
$params[strtolower($param)] = (int) get_pref($param);
}
$params["check_for_updates"] = CHECK_FOR_UPDATES;
$params["icons_url"] = ICONS_URL;
$params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
$params["default_view_mode"] = get_pref("_DEFAULT_VIEW_MODE");
$params["default_view_limit"] = (int) get_pref("_DEFAULT_VIEW_LIMIT");
$params["default_view_order_by"] = get_pref("_DEFAULT_VIEW_ORDER_BY");
$params["bw_limit"] = (int) $_SESSION["bw_limit"];
$params["is_default_pw"] = Pref_Prefs::isdefaultpassword();
$params["label_base_index"] = (int) LABEL_BASE_INDEX;