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