@curveball/kernel/dist/global-origin.js

Curveball is a framework writting in Typescript for Node.js

let globalOrigin = null;
/**
 * This function is the standard altogrithm to 'guess' the origin of where
 * a curveball app is running.
 *
 * The origin is 'base url', but more specifically it's the URL right up the
 * end of the path.
 *
 * For example: http://localhost is an origin, but https://localhost/ is not.
 *
 * Knowning where a server is running is often useful. We don't want to
 * auto-detect it based on the request, because we can't absolutely trust it.
 *
 * If the origin was detected wrong, set the CURVEBALL_ORIGIN environemtn
 * variable.
 */
export function getGlobalOrigin() {
    if (globalOrigin) {
        return globalOrigin;
    }
    if (process.env.CURVEBALL_ORIGIN) {
        return process.env.CURVEBALL_ORIGIN;
    }
    if (process.env.PUBLIC_URI) {
        return new URL(process.env.PUBLIC_URI).origin;
    }
    const port = process.env.PORT ? +process.env.PORT : 80;
    return 'http://localhost' + (port !== 80 ? ':' + port : '');
}
/**
 * Overrides the global origin
 */
export function setGlobalOrigin(origin) {
    globalOrigin = origin;
}
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