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<?php
class Auth_Internal extends Auth_Base {
private $host;
function about() {
return array(1.0,
"Authenticates against internal tt-rss database",
"fox",
true);
}
/* @var PluginHost $host */
function init($host) {
$this->host = $host;
$host->add_hook($host::HOOK_AUTH_USER, $this);
}
function authenticate($login, $password, $service = '') {
$pwd_hash1 = encrypt_password($password);
$pwd_hash2 = encrypt_password($password, $login);
$otp = (int) ($_REQUEST["otp"] ?? 0);
if (get_schema_version() > 96) {
$sth = $this->pdo->prepare("SELECT otp_enabled,salt FROM ttrss_users WHERE
LOWER(login) = LOWER(?)");
$sth->execute([$login]);
if ($row = $sth->fetch()) {
$otp_enabled = $row['otp_enabled'];
if ($otp_enabled) {
// only allow app password checking if OTP is enabled
if ($service && get_schema_version() > 138) {
return $this->check_app_password($login, $password, $service);
}
if ($otp) {
$base32 = new \OTPHP\Base32();
$secret = $base32->encode(mb_substr(sha1($row["salt"]), 0, 12), false);
$secret_legacy = $base32->encode(sha1($row["salt"]));
$totp = new \OTPHP\TOTP($secret);
$otp_check = $totp->now();
$totp_legacy = new \OTPHP\TOTP($secret_legacy);
$otp_check_legacy = $totp_legacy->now();
if ($otp !== $otp_check && $otp !== $otp_check_legacy) {
return false;
}
} else {
$return = urlencode($_REQUEST["return"]);
?>
<!DOCTYPE html>
<html>
<head>
<title>Tiny Tiny RSS</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<?= stylesheet_tag("themes/light.css") ?>
<body class="ttrss_utility otp">
<h1><?= __("Authentication") ?></h1>
<div class="content">
<form action="public.php?return=<?= $return ?>"
method="POST" class="otpform">
<input type="hidden" name="op" value="login">
<input type="hidden" name="login" value="<?= htmlspecialchars($login) ?>">
<input type="hidden" name="password" value="<?= htmlspecialchars($password) ?>">
<input type="hidden" name="bw_limit" value="<?= htmlspecialchars($_POST["bw_limit"] ?? "") ?>">
<input type="hidden" name="safe_mode" value="<?= htmlspecialchars($_POST["safe_mode"] ?? "") ?>">
<input type="hidden" name="remember_me" value="<?= htmlspecialchars($_POST["remember_me"] ?? "") ?>">
<input type="hidden" name="profile" value="<?= htmlspecialchars($_POST["profile"] ?? "") ?>">
<fieldset>
<label><?= __("Please enter your one time password:") ?></label>
<input autocomplete="off" size="6" name="otp" value=""/>
<input type="submit" value="Continue"/>
</fieldset>
</form></div>
<script type="text/javascript">
document.forms[0].otp.focus();
</script>
<?php
exit;
}
}
}
}
// check app passwords first but allow regular password as a fallback for the time being
// if OTP is not enabled
if ($service && get_schema_version() > 138) {
$user_id = $this->check_app_password($login, $password, $service);
if ($user_id)
return $user_id;
}
if (get_schema_version() > 87) {
$sth = $this->pdo->prepare("SELECT salt FROM ttrss_users WHERE LOWER(login) = LOWER(?)");
$sth->execute([$login]);
if ($row = $sth->fetch()) {
$salt = $row['salt'];
if ($salt == "") {
$sth = $this->pdo->prepare("SELECT id FROM ttrss_users WHERE
LOWER(login) = LOWER(?) AND (pwd_hash = ? OR pwd_hash = ?)");
$sth->execute([$login, $pwd_hash1, $pwd_hash2]);
// verify and upgrade password to new salt base
if ($row = $sth->fetch()) {
// upgrade password to MODE2
$user_id = $row['id'];
$salt = substr(bin2hex(get_random_bytes(125)), 0, 250);
$pwd_hash = encrypt_password($password, $salt, true);
$sth = $this->pdo->prepare("UPDATE ttrss_users SET
pwd_hash = ?, salt = ? WHERE LOWER(login) = LOWER(?)");
$sth->execute([$pwd_hash, $salt, $login]);
return $user_id;
} else {
return false;
}
} else {
$pwd_hash = encrypt_password($password, $salt, true);
$sth = $this->pdo->prepare("SELECT id
FROM ttrss_users WHERE
LOWER(login) = LOWER(?) AND pwd_hash = ?");
$sth->execute([$login, $pwd_hash]);
if ($row = $sth->fetch()) {
return $row['id'];
}
}
} else {
$sth = $this->pdo->prepare("SELECT id
FROM ttrss_users WHERE
LOWER(login) = LOWER(?) AND (pwd_hash = ? OR pwd_hash = ?)");
$sth->execute([$login, $pwd_hash1, $pwd_hash2]);
if ($row = $sth->fetch()) {
return $row['id'];
}
}
} else {
$sth = $this->pdo->prepare("SELECT id
FROM ttrss_users WHERE
LOWER(login) = LOWER(?) AND (pwd_hash = ? OR pwd_hash = ?)");
$sth->execute([$login, $pwd_hash1, $pwd_hash2]);
if ($row = $sth->fetch()) {
return $row['id'];
}
}
return false;
}
function check_password($owner_uid, $password, $service = '') {
$sth = $this->pdo->prepare("SELECT salt,login,otp_enabled FROM ttrss_users WHERE
id = ?");
$sth->execute([$owner_uid]);
if ($row = $sth->fetch()) {
$salt = $row['salt'];
$login = $row['login'];
// check app password only if service is specified
if ($service && get_schema_version() > 138) {
return $this->check_app_password($login, $password, $service);
}
if (!$salt) {
$password_hash1 = encrypt_password($password);
$password_hash2 = encrypt_password($password, $login);
$sth = $this->pdo->prepare("SELECT id FROM ttrss_users WHERE
id = ? AND (pwd_hash = ? OR pwd_hash = ?)");
$sth->execute([$owner_uid, $password_hash1, $password_hash2]);
return $sth->fetch();
} else {
$password_hash = encrypt_password($password, $salt, true);
$sth = $this->pdo->prepare("SELECT id FROM ttrss_users WHERE
id = ? AND pwd_hash = ?");
$sth->execute([$owner_uid, $password_hash]);
return $sth->fetch();
}
}
return false;
}
function change_password($owner_uid, $old_password, $new_password) {
if ($this->check_password($owner_uid, $old_password)) {
$new_salt = substr(bin2hex(get_random_bytes(125)), 0, 250);
$new_password_hash = encrypt_password($new_password, $new_salt, true);
$sth = $this->pdo->prepare("UPDATE ttrss_users SET
pwd_hash = ?, salt = ?, otp_enabled = false
WHERE id = ?");
$sth->execute([$new_password_hash, $new_salt, $owner_uid]);
$_SESSION["pwd_hash"] = $new_password_hash;
$sth = $this->pdo->prepare("SELECT email, login FROM ttrss_users WHERE id = ?");
$sth->execute([$owner_uid]);
if ($row = $sth->fetch()) {
$mailer = new Mailer();
$tpl = new Templator();
$tpl->readTemplateFromFile("password_change_template.txt");
$tpl->setVariable('LOGIN', $row["login"]);
$tpl->setVariable('TTRSS_HOST', Config::get(Config::SELF_URL_PATH));
$tpl->addBlock('message');
$tpl->generateOutputToString($message);
$mailer->mail(["to_name" => $row["login"],
"to_address" => $row["email"],
"subject" => "[tt-rss] Password change notification",
"message" => $message]);
}
return __("Password has been changed.");
} else {
return "ERROR: ".__('Old password is incorrect.');
}
}
private function check_app_password($login, $password, $service) {
$sth = $this->pdo->prepare("SELECT p.id, p.pwd_hash, u.id AS uid
FROM ttrss_app_passwords p, ttrss_users u
WHERE p.owner_uid = u.id AND LOWER(u.login) = LOWER(?) AND service = ?");
$sth->execute([$login, $service]);
while ($row = $sth->fetch()) {
list ($algo, $hash, $salt) = explode(":", $row["pwd_hash"]);
if ($algo == "SSHA-512") {
$test_hash = hash('sha512', $salt . $password);
if ($test_hash == $hash) {
$usth = $this->pdo->prepare("UPDATE ttrss_app_passwords SET last_used = NOW() WHERE id = ?");
$usth->execute([$row['id']]);
return $row['uid'];
}
} else {
user_error("Got unknown algo of app password for user $login: $algo");
}
}
return false;
}
function api_version() {
return 2;
}
}
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