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<?php
class FreshRSS_fever_Util {
private const FEVER_PATH = DATA_PATH . '/fever';
/**
* Make sure the fever path exists and is writable.
*
* @return bool true if the path is writable, false otherwise.
*/
public static function checkFeverPath(): bool {
if (!file_exists(self::FEVER_PATH)) {
@mkdir(self::FEVER_PATH, 0770, true);
}
$ok = touch(self::FEVER_PATH . '/index.html'); // is_writable() is not reliable for a folder on NFS
if (!$ok) {
Minz_Log::error("Could not save Fever API credentials. The directory does not have write access.");
}
return $ok;
}
/**
* Return the corresponding path for a fever key.
*/
public static function getKeyPath(string $feverKey): string {
if (FreshRSS_Context::$system_conf === null) {
throw new FreshRSS_Context_Exception('System configuration not initialised!');
}
$salt = sha1(FreshRSS_Context::$system_conf->salt);
return self::FEVER_PATH . '/.key-' . $salt . '-' . $feverKey . '.txt';
}
/**
* Update the fever key of a user.
* @return string|false the Fever key, or false if the update failed
*/
public static function updateKey(string $username, string $passwordPlain) {
if (!self::checkFeverPath()) {
return false;
}
self::deleteKey($username);
$feverKey = strtolower(md5("{$username}:{$passwordPlain}"));
$feverKeyPath = self::getKeyPath($feverKey);
$result = file_put_contents($feverKeyPath, $username);
if (is_int($result) && $result > 0) {
return $feverKey;
}
Minz_Log::warning('Could not save Fever API credentials. Unknown error.', ADMIN_LOG);
return false;
}
/**
* Delete the Fever key of a user.
*
* @return bool true if the deletion succeeded, else false.
*/
public static function deleteKey(string $username) {
$userConfig = get_user_configuration($username);
if ($userConfig === null) {
return false;
}
$feverKey = $userConfig->feverKey;
if (!ctype_xdigit($feverKey)) {
return false;
}
$feverKeyPath = self::getKeyPath($feverKey);
return @unlink($feverKeyPath);
}
}
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