function classAutoloader($class) { if (strpos($class, 'FreshRSS') === 0) { $components = explode('_', $class); switch (count($components)) { case 1: include(APP_PATH . '/' . $components[0] . '.php'); return; case 2: include(APP_PATH . '/Models/' . $components[1] . '.php'); return; case 3: //Controllers, Exceptions include(APP_PATH . '/' . $components[2] . 's/' . $components[1] . $components[2] . '.php'); return; } } elseif (strpos($class, 'Minz') === 0) { include(LIB_PATH . '/' . str_replace('_', '/', $class) . '.php'); } elseif (strpos($class, 'SimplePie') === 0) { include(LIB_PATH . '/SimplePie/' . str_replace('_', '/', $class) . '.php'); } elseif (strpos($class, 'CssXPath') !== false) { include(LIB_PATH . '/CssXPath/' . basename(str_replace('\\', '/', $class)) . '.php'); } elseif (str_starts_with($class, 'PHPMailer\\PHPMailer\\')) { $prefix = 'PHPMailer\\PHPMailer\\'; $base_dir = LIB_PATH . '/phpmailer/phpmailer/src/'; $relative_class_name = substr($class, strlen($prefix)); require $base_dir . str_replace('\\', '/', $relative_class_name) . '.php'; } } spl_autoload_register('classAutoloader'); // /** * @param string $url * @return string */ function idn_to_puny($url) { if (function_exists('idn_to_ascii')) { $idn = parse_url($url, PHP_URL_HOST); if ($idn != '') { // https://wiki.php.net/rfc/deprecate-and-remove-intl_idna_variant_2003 if (defined('INTL_IDNA_VARIANT_UTS46')) { $puny = idn_to_ascii($idn, IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46); } elseif (defined('INTL_IDNA_VARIANT_2003')) { $puny = idn_to_ascii($idn, IDNA_DEFAULT, INTL_IDNA_VARIANT_2003); } else { $puny = idn_to_ascii($idn); } $pos = strpos($url, $idn); if ($puny != '' && $pos !== false) { $url = substr_replace($url, $puny, $pos, strlen($idn)); } } } return $url; } /** * @param string $url * @param bool $fixScheme * @return string|false */ function checkUrl($url, $fixScheme = true) { $url = trim($url); if ($url == '') { return ''; } if ($fixScheme && !preg_match('#^https?://#i', $url)) { $url = 'https://' . ltrim($url, '/'); } $url = idn_to_puny($url); //PHP bug #53474 IDN $urlRelaxed = str_replace('_', 'z', $url); //PHP discussion #64948 Underscore if (filter_var($urlRelaxed, FILTER_VALIDATE_URL)) { return $url; } else { return false; } } /** * @param string $text * @return string */ function safe_ascii($text) { return filter_var($text, FILTER_DEFAULT, FILTER_FLAG_STRIP_LOW | FILTER_FLAG_STRIP_HIGH); } if (function_exists('mb_convert_encoding')) { /** * @param string $text * @return string */ function safe_utf8($text) { return mb_convert_encoding($text, 'UTF-8', 'UTF-8'); } } elseif (function_exists('iconv')) { /** * @param string $text * @return string */ function safe_utf8($text) { return iconv('UTF-8', 'UTF-8//IGNORE', $text); } } else { /** * @param string $text * @return string */ function safe_utf8($text) { return $text; } } /** * @param string $text * @param bool $extended * @return string */ function escapeToUnicodeAlternative($text, $extended = true) { $text = htmlspecialchars_decode($text, ENT_QUOTES); //Problematic characters $problem = array('&', '<', '>'); //Use their fullwidth Unicode form instead: $replace = array('＆', '＜', '＞'); // https://raw.githubusercontent.com/mihaip/google-reader-api/master/wiki/StreamId.wiki if ($extended) { $problem += array("'", '"', '^', '?', '\\', '/', ',', ';'); $replace += array("’", '＂', '＾', '？', '＼', '／', '，', '；'); } return trim(str_replace($problem, $replace, $text)); } function format_number($n, $precision = 0) { // number_format does not seem to be Unicode-compatible return str_replace(' ', ' ', // Thin non-breaking space number_format($n, $precision, '.', ' ') ); } function format_bytes($bytes, $precision = 2, $system = 'IEC') { if ($system === 'IEC') { $base = 1024; $units = array('B', 'KiB', 'MiB', 'GiB', 'TiB'); } elseif ($system === 'SI') { $base = 1000; $units = array('B', 'KB', 'MB', 'GB', 'TB'); } else { return format_number($bytes, $precision); } $bytes = max(intval($bytes), 0); $pow = $bytes === 0 ? 0 : floor(log($bytes) / log($base)); $pow = min($pow, count($units) - 1); $bytes /= pow($base, $pow); return format_number($bytes, $precision) . ' ' . $units[$pow]; } function timestamptodate ($t, $hour = true) { $month = _t('gen.date.' . date('M', $t)); if ($hour) { $date = _t('gen.date.format_date_hour', $month); } else { $date = _t('gen.date.format_date', $month); } return @date ($date, $t); } /** * Decode HTML entities but preserve XML entities. * @param string|null $text */ function html_only_entity_decode($text): string { static $htmlEntitiesOnly = null; if ($htmlEntitiesOnly === null) { $htmlEntitiesOnly = array_flip(array_diff( get_html_translation_table(HTML_ENTITIES, ENT_NOQUOTES, 'UTF-8'), //Decode HTML entities get_html_translation_table(HTML_SPECIALCHARS, ENT_NOQUOTES, 'UTF-8') //Preserve XML entities )); } return $text == '' ? '' : strtr($text, $htmlEntitiesOnly); } /** * @param array $attributes */ function customSimplePie($attributes = array()): SimplePie { $limits = FreshRSS_Context::$system_conf->limits; $simplePie = new SimplePie(); $simplePie->set_useragent(FRESHRSS_USERAGENT); $simplePie->set_syslog(FreshRSS_Context::$system_conf->simplepie_syslog_enabled); $simplePie->set_cache_name_function('sha1'); $simplePie->set_cache_location(CACHE_PATH); $simplePie->set_cache_duration($limits['cache_duration']); $simplePie->enable_order_by_date(false); $feed_timeout = empty($attributes['timeout']) ? 0 : intval($attributes['timeout']); $simplePie->set_timeout($feed_timeout > 0 ? $feed_timeout : $limits['timeout']); $curl_options = FreshRSS_Context::$system_conf->curl_options; if (isset($attributes['ssl_verify'])) { $curl_options[CURLOPT_SSL_VERIFYHOST] = $attributes['ssl_verify'] ? 2 : 0; $curl_options[CURLOPT_SSL_VERIFYPEER] = $attributes['ssl_verify'] ? true : false; if (!$attributes['ssl_verify']) { $curl_options[CURLOPT_SSL_CIPHER_LIST] = 'DEFAULT@SECLEVEL=1'; } } if (!empty($attributes['curl_params']) && is_array($attributes['curl_params'])) { foreach ($attributes['curl_params'] as $co => $v) { $curl_options[$co] = $v; } } $simplePie->set_curl_options($curl_options); $simplePie->strip_comments(true); $simplePie->strip_htmltags(array( 'base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'link', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'plaintext', 'script', 'style', 'svg', //TODO: Support SVG after sanitizing and URL rewriting of xlink:href )); $simplePie->rename_attributes(array('id', 'class')); $simplePie->strip_attributes(array_merge($simplePie->strip_attributes, array( 'autoplay', 'class', 'onload', 'onunload', 'onclick', 'ondblclick', 'onmousedown', 'onmouseup', 'onmouseover', 'onmousemove', 'onmouseout', 'onfocus', 'onblur', 'onkeypress', 'onkeydown', 'onkeyup', 'onselect', 'onchange', 'seamless', 'sizes', 'srcset'))); $simplePie->add_attributes(array( 'audio' => array('controls' => 'controls', 'preload' => 'none'), 'iframe' => array('sandbox' => 'allow-scripts allow-same-origin'), 'video' => array('controls' => 'controls', 'preload' => 'none'), )); $simplePie->set_url_replacements(array( 'a' => 'href', 'area' => 'href', 'audio' => 'src', 'blockquote' => 'cite', 'del' => 'cite', 'form' => 'action', 'iframe' => 'src', 'img' => array( 'longdesc', 'src' ), 'input' => 'src', 'ins' => 'cite', 'q' => 'cite', 'source' => 'src', 'track' => 'src', 'video' => array( 'poster', 'src', ), )); $https_domains = array(); $force = @file(FRESHRSS_PATH . '/force-https.default.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); if (is_array($force)) { $https_domains = array_merge($https_domains, $force); } $force = @file(DATA_PATH . '/force-https.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); if (is_array($force)) { $https_domains = array_merge($https_domains, $force); } $simplePie->set_https_domains($https_domains); return $simplePie; } /** * @param int|false $maxLength */ function sanitizeHTML($data, string $base = '', $maxLength = false) { if (!is_string($data) || ($maxLength !== false && $maxLength <= 0)) { return ''; } if ($maxLength !== false) { $data = mb_strcut($data, 0, $maxLength, 'UTF-8'); } static $simplePie = null; if ($simplePie == null) { $simplePie = customSimplePie(); $simplePie->init(); } $result = html_only_entity_decode($simplePie->sanitize->sanitize($data, SIMPLEPIE_CONSTRUCT_HTML, $base)); if ($maxLength !== false && strlen($result) > $maxLength) { //Sanitizing has made the result too long so try again shorter $data = mb_strcut($result, 0, (2 * $maxLength) - strlen($result) - 2, 'UTF-8'); return sanitizeHTML($data, $base, $maxLength); } return $result; } function cleanCache(int $hours = 720) { $files = glob(CACHE_PATH . '/*.{html,spc}', GLOB_BRACE | GLOB_NOSORT); foreach ($files as $file) { if (substr($file, -10) === 'index.html') { continue; } $cacheMtime = @filemtime($file); if ($cacheMtime !== false && $cacheMtime < time() - (3600 * $hours)) { unlink($file); } } } /** * Set an XML preamble to enforce the HTML content type charset received by HTTP. * @param string $html the row downloaded HTML content * @param string $contentType an HTTP Content-Type such as 'text/html; charset=utf-8' * @return string an HTML string with XML encoding information for DOMDocument::loadHTML() */ function enforceHttpEncoding(string $html, string $contentType = ''): string { $httpCharset = preg_match('/\bcharset=([0-9a-z_-]{2,12})$/i', $contentType, $matches) === false ? '' : $matches[1] ?? ''; if ($httpCharset == '') { // No charset defined by HTTP, do nothing return $html; } $httpCharsetNormalized = SimplePie_Misc::encoding($httpCharset); if ($httpCharsetNormalized === 'windows-1252') { // Default charset for HTTP, do nothing return $html; } if (substr($html, 0, 3) === "\xEF\xBB\xBF" || // UTF-8 BOM substr($html, 0, 2) === "\xFF\xFE" || // UTF-16 Little Endian BOM substr($html, 0, 2) === "\xFE\xFF" || // UTF-16 Big Endian BOM substr($html, 0, 4) === "\xFF\xFE\x00\x00" || // UTF-32 Little Endian BOM substr($html, 0, 4) === "\x00\x00\xFE\xFF") { // UTF-32 Big Endian BOM // Existing byte order mark, do nothing return $html; } if (preg_match('/^<[?]xml[^>]+encoding\b/', substr($html, 0, 64))) { // Existing XML declaration, do nothing return $html; } return '<' . '?xml version="1.0" encoding="' . $httpCharsetNormalized . '" ?' . ">\n" . $html; } /** * @param array $attributes */ function getHtml(string $url, array $attributes = []): string { $limits = FreshRSS_Context::$system_conf->limits; $feed_timeout = empty($attributes['timeout']) ? 0 : intval($attributes['timeout']); $cachePath = FreshRSS_Feed::cacheFilename($url, $attributes, FreshRSS_Feed::KIND_HTML_XPATH); $cacheMtime = @filemtime($cachePath); if ($cacheMtime !== false && $cacheMtime > time() - intval($limits['cache_duration'])) { $html = @file_get_contents($cachePath); if ($html != '') { syslog(LOG_DEBUG, 'FreshRSS uses cache for ' . SimplePie_Misc::url_remove_credentials($url)); return $html; } } if (mt_rand(0, 30) === 1) { // Remove old entries once in a while cleanCache(); } if (FreshRSS_Context::$system_conf->simplepie_syslog_enabled) { syslog(LOG_INFO, 'FreshRSS GET ' . SimplePie_Misc::url_remove_credentials($url)); } // TODO: Implement HTTP 1.1 conditional GET If-Modified-Since $ch = curl_init(); curl_setopt_array($ch, [ CURLOPT_URL => $url, CURLOPT_REFERER => SimplePie_Misc::url_remove_credentials($url), CURLOPT_HTTPHEADER => array('Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'), CURLOPT_USERAGENT => FRESHRSS_USERAGENT, CURLOPT_CONNECTTIMEOUT => $feed_timeout > 0 ? $feed_timeout : $limits['timeout'], CURLOPT_TIMEOUT => $feed_timeout > 0 ? $feed_timeout : $limits['timeout'], //CURLOPT_FAILONERROR => true; CURLOPT_MAXREDIRS => 4, CURLOPT_RETURNTRANSFER => true, CURLOPT_FOLLOWLOCATION => true, CURLOPT_ENCODING => '', //Enable all encodings ]); curl_setopt_array($ch, FreshRSS_Context::$system_conf->curl_options); if (isset($attributes['curl_params']) && is_array($attributes['curl_params'])) { curl_setopt_array($ch, $attributes['curl_params']); } if (isset($attributes['ssl_verify'])) { curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, $attributes['ssl_verify'] ? 2 : 0); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $attributes['ssl_verify'] ? true : false); if (!$attributes['ssl_verify']) { curl_setopt($ch, CURLOPT_SSL_CIPHER_LIST, 'DEFAULT@SECLEVEL=1'); } } $html = curl_exec($ch); $c_status = curl_getinfo($ch, CURLINFO_HTTP_CODE); $c_content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE); //TODO: Check if that may be null $c_error = curl_error($ch); curl_close($ch); if ($c_status != 200 || $c_error != '' || $html === false) { Minz_Log::warning('Error fetching content: HTTP code ' . $c_status . ': ' . $c_error . ' ' . $url); // TODO: Implement HTTP 410 Gone } if ($html == false) { $html = ''; } else { $html = enforceHttpEncoding($html, $c_content_type); } if (file_put_contents($cachePath, $html) === false) { Minz_Log::warning("Error saving cache $cachePath for $url"); } return $html; } /** * Validate an email address, supports internationalized addresses. * * @param string $email The address to validate * * @return bool true if email is valid, else false */ function validateEmailAddress($email) { $mailer = new PHPMailer\PHPMailer\PHPMailer(); $mailer->CharSet = 'utf-8'; $punyemail = $mailer->punyencodeAddress($email); return PHPMailer\PHPMailer\PHPMailer::validateAddress($punyemail, 'html5'); } /** * Add support of image lazy loading * Move content from src attribute to data-original * @param string $content is the text we want to parse * @return string */ function lazyimg($content) { return preg_replace([ '/<((?:img|iframe)[^>]+?)src="([^"]+)"([^>]*)>/i', "/<((?:img|iframe)[^>]+?)src='([^']+)'([^>]*)>/i", ], [ '<$1src="' . Minz_Url::display('/themes/icons/grey.gif') . '" data-original="$2"$3>', "<$1src='" . Minz_Url::display('/themes/icons/grey.gif') . "' data-original='$2'$3>", ], $content ); } /** * @return string */ function uTimeString() { $t = @gettimeofday(); return $t['sec'] . str_pad('' . $t['usec'], 6, '0', STR_PAD_LEFT); } function invalidateHttpCache($username = '') { if (!FreshRSS_user_Controller::checkUsername($username)) { Minz_Session::_param('touch', uTimeString()); $username = Minz_Session::param('currentUser', '_'); } $ok = @touch(DATA_PATH . '/users/' . $username . '/log.txt'); //if (!$ok) { //TODO: Display notification error on front-end //} return $ok; } /** * @return array */ function listUsers() { $final_list = array(); $base_path = join_path(DATA_PATH, 'users'); $dir_list = array_values(array_diff( scandir($base_path), array('..', '.', '_') )); foreach ($dir_list as $file) { if ($file[0] !== '.' && is_dir(join_path($base_path, $file)) && file_exists(join_path($base_path, $file, 'config.php'))) { $final_list[] = $file; } } return $final_list; } /** * Return if the maximum number of registrations has been reached. * * Note a max_regstrations of 0 means there is no limit. * * @return boolean true if number of users >= max registrations, false else. */ function max_registrations_reached() { $limit_registrations = FreshRSS_Context::$system_conf->limits['max_registrations']; $number_accounts = count(listUsers()); return $limit_registrations > 0 && $number_accounts >= $limit_registrations; } /** * Register and return the configuration for a given user. * * Note this function has been created to generate temporary configuration * objects. If you need a long-time configuration, please don't use this function. * * @param string $username the name of the user of which we want the configuration. * @return FreshRSS_UserConfiguration|null object, or null if the configuration cannot be loaded. */ function get_user_configuration($username) { if (!FreshRSS_user_Controller::checkUsername($username)) { return null; } $namespace = 'user_' . $username; try { Minz_Configuration::register($namespace, USERS_PATH . '/' . $username . '/config.php', FRESHRSS_PATH . '/config-user.default.php'); } catch (Minz_ConfigurationNamespaceException $e) { // namespace already exists, do nothing. Minz_Log::warning($e->getMessage(), USERS_PATH . '/_/log.txt'); } catch (Minz_FileNotExistException $e) { Minz_Log::warning($e->getMessage(), USERS_PATH . '/_/log.txt'); return null; } /** * @var FreshRSS_UserConfiguration $user_conf */ $user_conf = Minz_Configuration::get($namespace); return $user_conf; } /** * Converts an IP (v4 or v6) to a binary representation using inet_pton * * @param string $ip the IP to convert * @return string a binary representation of the specified IP */ function ipToBits(string $ip): string { $binaryip = ''; foreach (str_split(inet_pton($ip)) as $char) { $binaryip .= str_pad(decbin(ord($char)), 8, '0', STR_PAD_LEFT); } return $binaryip; } /** * Check if an ip belongs to the provided range (in CIDR format) * * @param string $ip the IP that we want to verify (ex: 192.168.16.1) * @param string $range the range to check against (ex: 192.168.16.0/24) * @return boolean true if the IP is in the range, otherwise false */ function checkCIDR(string $ip, string $range): bool { $binary_ip = ipToBits($ip); list($subnet, $mask_bits) = explode('/', $range); $mask_bits = intval($mask_bits); $binary_subnet = ipToBits($subnet); $ip_net_bits = substr($binary_ip, 0, $mask_bits); $subnet_bits = substr($binary_subnet, 0, $mask_bits); return $ip_net_bits === $subnet_bits; } /** * Check if the client is allowed to send unsafe headers * This uses the REMOTE_ADDR header to determine the sender's IP * and the configuration option "trusted_sources" to get an array of the authorized ranges * * @return boolean, true if the sender's IP is in one of the ranges defined in the configuration, else false */ function checkTrustedIP(): bool { if (!empty($_SERVER['REMOTE_ADDR'])) { foreach (FreshRSS_Context::$system_conf->trusted_sources as $cidr) { if (checkCIDR($_SERVER['REMOTE_ADDR'], $cidr)) { return true; } } } return false; } /** * @return string */ function httpAuthUser() { if (!empty($_SERVER['REMOTE_USER'])) { return $_SERVER['REMOTE_USER']; } elseif (!empty($_SERVER['HTTP_REMOTE_USER']) && checkTrustedIP()) { return $_SERVER['HTTP_REMOTE_USER']; } elseif (!empty($_SERVER['REDIRECT_REMOTE_USER'])) { return $_SERVER['REDIRECT_REMOTE_USER']; } elseif (!empty($_SERVER['HTTP_X_WEBAUTH_USER']) && checkTrustedIP()) { return $_SERVER['HTTP_X_WEBAUTH_USER']; } return ''; } /** * @return bool */ function cryptAvailable() { try { $hash = '$2y$04$usesomesillystringfore7hnbRJHxXVLeakoG8K30oukPsA.ztMG'; return $hash === @crypt('password', $hash); } catch (Exception $e) { Minz_Log::warning($e->getMessage()); } return false; } /** * Check PHP and its extensions are well-installed. * * @return array of tested values. */ function check_install_php() { $pdo_mysql = extension_loaded('pdo_mysql'); $pdo_pgsql = extension_loaded('pdo_pgsql'); $pdo_sqlite = extension_loaded('pdo_sqlite'); return array( 'php' => version_compare(PHP_VERSION, FRESHRSS_MIN_PHP_VERSION) >= 0, 'curl' => extension_loaded('curl'), 'pdo' => $pdo_mysql || $pdo_sqlite || $pdo_pgsql, 'pcre' => extension_loaded('pcre'), 'ctype' => extension_loaded('ctype'), 'fileinfo' => extension_loaded('fileinfo'), 'dom' => class_exists('DOMDocument'), 'json' => extension_loaded('json'), 'mbstring' => extension_loaded('mbstring'), 'zip' => extension_loaded('zip'), ); } /** * Check different data files and directories exist. * * @return array of tested values. */ function check_install_files() { return array( // @phpstan-ignore-next-line 'data' => DATA_PATH && is_writable(DATA_PATH), // @phpstan-ignore-next-line 'cache' => CACHE_PATH && is_writable(CACHE_PATH), // @phpstan-ignore-next-line 'users' => USERS_PATH && is_writable(USERS_PATH), 'favicons' => is_writable(DATA_PATH . '/favicons'), 'tokens' => is_writable(DATA_PATH . '/tokens'), ); } /** * Check database is well-installed. * * @return array of tested values. */ function check_install_database() { $status = array( 'connection' => true, 'tables' => false, 'categories' => false, 'feeds' => false, 'entries' => false, 'entrytmp' => false, 'tag' => false, 'entrytag' => false, ); try { $dbDAO = FreshRSS_Factory::createDatabaseDAO(); $status['tables'] = $dbDAO->tablesAreCorrect(); $status['categories'] = $dbDAO->categoryIsCorrect(); $status['feeds'] = $dbDAO->feedIsCorrect(); $status['entries'] = $dbDAO->entryIsCorrect(); $status['entrytmp'] = $dbDAO->entrytmpIsCorrect(); $status['tag'] = $dbDAO->tagIsCorrect(); $status['entrytag'] = $dbDAO->entrytagIsCorrect(); } catch(Minz_PDOConnectionException $e) { $status['connection'] = false; } return $status; } /** * Remove a directory recursively. * * From http://php.net/rmdir#110489 * * @param string $dir the directory to remove */ function recursive_unlink($dir) { if (!is_dir($dir)) { return true; } $files = array_diff(scandir($dir), array('.', '..')); foreach ($files as $filename) { $filename = $dir . '/' . $filename; if (is_dir($filename)) { @chmod($filename, 0777); recursive_unlink($filename); } else { unlink($filename); } } return rmdir($dir); } /** * Remove queries where $get is appearing. * @param string $get the get attribute which should be removed. * @param array> $queries an array of queries. * @return array> without queries where $get is appearing. */ function remove_query_by_get($get, $queries) { $final_queries = array(); foreach ($queries as $key => $query) { if (empty($query['get']) || $query['get'] !== $get) { $final_queries[$key] = $query; } } return $final_queries; } function _i($icon, $url_only = false) { return FreshRSS_Themes::icon($icon, $url_only); } const SHORTCUT_KEYS = [ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'F1', 'F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9', 'F10', 'F11', 'F12', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'ArrowUp', 'Backspace', 'Delete', 'End', 'Enter', 'Escape', 'Home', 'Insert', 'PageDown', 'PageUp', 'Space', 'Tab', ]; function getNonStandardShortcuts($shortcuts) { $standard = strtolower(implode(' ', SHORTCUT_KEYS)); $nonStandard = array_filter($shortcuts, function ($shortcut) use ($standard) { $shortcut = trim($shortcut); return $shortcut !== '' & stripos($standard, $shortcut) === false; }); return $nonStandard; } function errorMessageInfo($errorTitle, $error = '') { $errorTitle = htmlspecialchars($errorTitle, ENT_NOQUOTES, 'UTF-8'); $message = ''; $details = ''; // Prevent empty tags by checking if error isn not empty first if ($error) { $error = htmlspecialchars($error, ENT_NOQUOTES, 'UTF-8'); // First line is the main message, other lines are the details list($message, $details) = explode("\n", $error, 2); $message = "

{$message}

"; $details = "

{$details}

"; } return <<{$errorTitle} {$message} {$details}

Check the logs

FreshRSS logs are located in ./FreshRSS/data/users/*/log*.txt

N.B.: A typical problem is wrong file permissions in the ./FreshRSS/data/ folder so make sure the Web server can write there and in sub-directories.

Common locations for additional logs

N.B.: Adapt names and paths according to your local setup.

If using Docker: docker logs -f freshrss
To check Web server logs on a Linux system using systemd: journalctl -xeu apache2 and if you are using php-fpm: journalctl -xeu php-fpm
Otherwise, Web server logs are typically located in /var/log/apache2/ or similar
System logs may also contain relevant information in /var/log/syslog, or if using systemd: sudo journalctl -xe

More logs can be generated by enabling 'environment' => 'development', in ./FreshRSS/data/config.php

Running the feed update script (with the same user and PHP version as your Web server) might provide other hints, e.g.: sudo -u www-data /usr/bin/php ./FreshRSS/app/actualize_script.php

MSG; }