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87 lines
2.9 KiB
87 lines
2.9 KiB
<?php |
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class FreshRSS_FormAuth { |
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public static function checkCredentials(string $username, string $hash, string $nonce, string $challenge): bool { |
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if (!FreshRSS_user_Controller::checkUsername($username) || |
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!ctype_graph($hash) || |
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!ctype_graph($challenge) || |
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!ctype_alnum($nonce)) { |
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Minz_Log::debug("Invalid credential parameters: user={$username}, challenge={$challenge}, nonce={$nonce}"); |
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return false; |
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} |
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return password_verify($nonce . $hash, $challenge); |
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} |
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public static function getCredentialsFromCookie() { |
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$token = Minz_Session::getLongTermCookie('FreshRSS_login'); |
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if (!ctype_alnum($token)) { |
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return array(); |
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} |
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$token_file = DATA_PATH . '/tokens/' . $token . '.txt'; |
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$mtime = @filemtime($token_file); |
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$limits = FreshRSS_Context::$system_conf->limits; |
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$cookie_duration = empty($limits['cookie_duration']) ? FreshRSS_Auth::DEFAULT_COOKIE_DURATION : $limits['cookie_duration']; |
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if ($mtime + $cookie_duration < time()) { |
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// Token has expired (> cookie_duration) or does not exist. |
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@unlink($token_file); |
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return array(); |
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} |
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$credentials = @file_get_contents($token_file); |
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if ($credentials !== false && self::renewCookie($token)) { |
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return explode("\t", $credentials, 2); |
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} |
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return []; |
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} |
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private static function renewCookie(string $token) { |
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$token_file = DATA_PATH . '/tokens/' . $token . '.txt'; |
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if (touch($token_file)) { |
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$limits = FreshRSS_Context::$system_conf->limits; |
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$cookie_duration = empty($limits['cookie_duration']) ? FreshRSS_Auth::DEFAULT_COOKIE_DURATION : $limits['cookie_duration']; |
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$expire = time() + $cookie_duration; |
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Minz_Session::setLongTermCookie('FreshRSS_login', $token, $expire); |
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return $token; |
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} |
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return false; |
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} |
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public static function makeCookie(string $username, string $password_hash) { |
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do { |
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$token = sha1(FreshRSS_Context::$system_conf->salt . $username . uniqid('' . mt_rand(), true)); |
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$token_file = DATA_PATH . '/tokens/' . $token . '.txt'; |
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} while (file_exists($token_file)); |
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if (@file_put_contents($token_file, $username . "\t" . $password_hash) === false) { |
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return false; |
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} |
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return self::renewCookie($token); |
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} |
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public static function deleteCookie() { |
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$token = Minz_Session::getLongTermCookie('FreshRSS_login'); |
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if (ctype_alnum($token)) { |
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Minz_Session::deleteLongTermCookie('FreshRSS_login'); |
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@unlink(DATA_PATH . '/tokens/' . $token . '.txt'); |
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} |
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if (rand(0, 10) === 1) { |
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self::purgeTokens(); |
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} |
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} |
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public static function purgeTokens() { |
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$limits = FreshRSS_Context::$system_conf->limits; |
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$cookie_duration = empty($limits['cookie_duration']) ? FreshRSS_Auth::DEFAULT_COOKIE_DURATION : $limits['cookie_duration']; |
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$oldest = time() - $cookie_duration; |
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foreach (new DirectoryIterator(DATA_PATH . '/tokens/') as $file_info) { |
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$extension = $file_info->getExtension(); |
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if ($extension === 'txt' && $file_info->getMTime() < $oldest) { |
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@unlink($file_info->getPathname()); |
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} |
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} |
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} |
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}
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