netconf-client/dist/cli/parse-conn-str.js

Netconf Client

/**
 * Regex for user:pass@host:port
 */
const CONN_STR_REGEX = /^(?:([^\s:@]+)(?::([^\s@]+))?@)?([\w.-]+)(?::(\d{1,5}))?$/;
const MAX_HOST_LENGTH = 255;
const MAX_PORT_NUMBER = 65535;
/**
 * Parse user:pass@host:port connection string
 *
 * @param conn - Connection string in the format of user:pass@host:port where only host is required. If some of the
 *   parameters are not provided, they will be undefined.
 *
 * @returns Connection string object
 */
export function parseConnStr(conn) {
    // Parse conn str using regexp
    const match = conn.match(CONN_STR_REGEX);
    if (!match) {
        throw new Error('Invalid connection string. Connection string must be in the form of user:pass@host:port');
    }
    const user = match[1] ?? undefined;
    const pass = match[2] ?? undefined;
    const host = match[3];
    const port = match[4] ? parseInt(match[4], 10) : undefined;
    if (host.length > MAX_HOST_LENGTH) {
        throw new Error(`Host name too long, max length is ${MAX_HOST_LENGTH}`);
    }
    if (port && port > MAX_PORT_NUMBER) {
        throw new Error(`Invalid port number, must be between 0 and ${MAX_PORT_NUMBER}`);
    }
    return { host, port, user, pass };
}
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