@sap-cloud-sdk/connectivity
Version:
SAP Cloud SDK for JavaScript connectivity
113 lines • 4.83 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getDestinationsFromEnv = getDestinationsFromEnv;
exports.getDestinationFromEnvByName = getDestinationFromEnvByName;
exports.getDestinationsEnvVariable = getDestinationsEnvVariable;
exports.searchEnvVariablesForDestination = searchEnvVariablesForDestination;
exports.validateNameAvailable = validateNameAvailable;
exports.setDestinationsInEnv = setDestinationsInEnv;
const util_1 = require("@sap-cloud-sdk/util");
const destination_1 = require("./destination");
const http_proxy_util_1 = require("./http-proxy-util");
const destination_service_types_1 = require("./destination-service-types");
const forward_auth_token_1 = require("./forward-auth-token");
const logger = (0, util_1.createLogger)({
package: 'connectivity',
messageContext: 'env-destination-accessor'
});
/**
* Get all destinations from the environment variable "destinations".
* This is discouraged for productive use! Use {@link useOrFetchDestination} for fetching destinations from the Cloud Foundry destination service.
*
* @returns A list of destinations
* @internal
*/
function getDestinationsFromEnv() {
const destinationsEnv = getDestinationsEnvVariable();
logger.debug(`The value for the destination environment variable is: ${destinationsEnv}`);
if (destinationsEnv) {
let destinations;
try {
destinations = JSON.parse(destinationsEnv);
}
catch (err) {
throw new util_1.ErrorWithCause('Error in parsing the destinations from the environment variable.', err);
}
validateDestinations(destinations);
return destinations.map(destination => (0, destination_1.isDestinationConfiguration)(destination)
? (0, destination_1.parseDestination)(destination)
: (0, destination_1.sanitizeDestination)(destination));
}
return [];
}
/**
* @internal
* Get a destination from the environment variables by name. If there are multiple destinations with the same name the first one will be used.
* This is discouraged for productive use! Use destination-accessor/useOrFetchDestination for fetching destinations
* from the Cloud Foundry destination service.
* @param name - Name of the destination
* @returns The requested destination if existent, otherwise `null`.
*/
function getDestinationFromEnvByName(name) {
const matchingDestinations = getDestinationsFromEnv().filter(dest => dest.name === name);
if (!matchingDestinations.length) {
return null;
}
if (matchingDestinations.length > 1) {
logger.warn(`The 'destinations' env variable contains multiple destinations with the name '${name}'. Only the first entry will be considered.`);
}
return matchingDestinations[0];
}
/**
* @internal
*/
function getDestinationsEnvVariable() {
return process.env['destinations'];
}
function validateDestinations(destinations) {
destinations.forEach(destination => {
if (typeof destination.name === 'undefined' &&
typeof destination.Name === 'undefined') {
logger.warn("Destination from 'destinations' env variable is missing 'name' or 'Name' property.");
}
});
}
/**
* @internal
*/
function searchEnvVariablesForDestination(options) {
logger.debug('Attempting to retrieve destination from environment variable.');
if (getDestinationsEnvVariable()) {
try {
const destination = getDestinationFromEnvByName(options.destinationName);
if (destination) {
logger.info(`Successfully retrieved destination '${options.destinationName}' from environment variable.`);
(0, forward_auth_token_1.setForwardedAuthTokenIfNeeded)(destination, options.jwt);
return (0, destination_service_types_1.isHttpDestination)(destination) &&
['internet', 'private-link'].includes((0, http_proxy_util_1.proxyStrategy)(destination))
? (0, http_proxy_util_1.addProxyConfigurationInternet)(destination)
: destination;
}
}
catch (error) {
logger.error(`Error in reading the given destinations from the environment variable ${error.message}.`);
}
}
logger.debug('No environment variable set.');
return null;
}
/**
* @internal
*/
function validateNameAvailable(destinationName, existingNames) {
if (existingNames.has(destinationName)) {
throw new Error(`Parsing destinations failed, destination with name "${destinationName}" already exists in the "destinations" environment variables.`);
}
}
/**
* @internal
*/
function setDestinationsInEnv(destinations) {
process.env.destinations = JSON.stringify(destinations);
}
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