@sap-cloud-sdk/core
Version:
SAP Cloud SDK for JavaScript core
165 lines • 8.6 kB
JavaScript
;
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return __assign.apply(this, arguments);
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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Object.defineProperty(exports, "__esModule", { value: true });
exports.proxyHostAndPort = exports.addProxyConfigurationOnPrem = exports.addProxyConfiguration = void 0;
var util_1 = require("@sap-cloud-sdk/util");
var protocol_1 = require("./protocol");
var environment_accessor_1 = require("./environment-accessor");
var token_accessor_1 = require("./token-accessor");
var jwt_1 = require("./jwt");
var logger = (0, util_1.createLogger)({
package: 'core',
messageContext: 'connectivity-service'
});
/**
* Given a destination and a JWT (required for subscriber destinations), this function will add a proxy configuration to a destination.
* See also [[ProxyConfiguration]].
*
* This function will reject if no connectivity service is bound, no XSUAA service with plan application is bound or the client credentials grant with the XSUAA service fails.
*
* @Deprecated Since v1.16.0. Use [[addProxyConfigurationOnPrem]] instead.
* @param destination - The destination to which the proxy configuration should be added.
* @param jwt - The JWT of the current user.
* @returns A promise resolving to the destination with the added proxy configuration.
*/
function addProxyConfiguration(destination, jwt) {
return __awaiter(this, void 0, void 0, function () {
var proxyConfiguration, _a, _b;
var _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
_a = [__assign({}, proxyHostAndPort())];
_c = {};
_b = [{}];
return [4 /*yield*/, proxyHeaders(destination.authentication, jwt)];
case 1:
proxyConfiguration = __assign.apply(void 0, _a.concat([(_c.headers = __assign.apply(void 0, _b.concat([(_d.sent())])), _c)]));
return [2 /*return*/, __assign(__assign({}, destination), { proxyConfiguration: proxyConfiguration })];
}
});
});
}
exports.addProxyConfiguration = addProxyConfiguration;
// TODO: remove string argument in v2.0
function addProxyConfigurationOnPrem(destination, jwt) {
var jwtPair = typeof jwt === 'string' ? { encoded: jwt, decoded: (0, jwt_1.decodeJwt)(jwt) } : jwt;
if (destination.authentication === 'PrincipalPropagation' &&
!(0, jwt_1.isUserToken)(jwtPair)) {
throw new Error('For principal propagation a user JWT is needed.');
}
return addProxyConfiguration(destination, jwtPair === null || jwtPair === void 0 ? void 0 : jwtPair.encoded);
}
exports.addProxyConfigurationOnPrem = addProxyConfigurationOnPrem;
function proxyHostAndPort() {
var service = readConnectivityServiceBinding();
return {
host: service.credentials.onpremise_proxy_host,
port: service.credentials.onpremise_proxy_http_port ||
service.credentials.onpremise_proxy_port,
protocol: protocol_1.Protocol.HTTP
};
}
exports.proxyHostAndPort = proxyHostAndPort;
function readConnectivityServiceBinding() {
var serviceBindings = environment_accessor_1.EnvironmentAccessor.getServiceList('connectivity');
if (!serviceBindings.length) {
throw new Error('No binding to a connectivity service found! Please make sure to bind an instance of the connectivity service to your app if you want to connect to on-premise destinations.');
}
return serviceBindings[0];
}
function proxyHeaders(authenticationType, jwt) {
return __awaiter(this, void 0, void 0, function () {
var proxyAuthHeader, sapConnectivityHeader;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, proxyAuthorizationHeader(jwt)];
case 1:
proxyAuthHeader = _a.sent();
sapConnectivityHeader = sapConnectivityAuthenticationHeader(authenticationType, jwt);
return [2 /*return*/, __assign(__assign({}, proxyAuthHeader), sapConnectivityHeader)];
}
});
});
}
function proxyAuthorizationHeader(userJwt) {
return __awaiter(this, void 0, void 0, function () {
var connServiceBinding, token, error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
connServiceBinding = readConnectivityServiceBinding();
return [4 /*yield*/, (0, token_accessor_1.serviceToken)(connServiceBinding, { userJwt: userJwt })];
case 1:
token = _a.sent();
return [2 /*return*/, { 'Proxy-Authorization': "Bearer ".concat(token) }];
case 2:
error_1 = _a.sent();
throw new util_1.ErrorWithCause('Failed to add proxy authorization header - client credentials grant failed!', error_1);
case 3: return [2 /*return*/];
}
});
});
}
function sapConnectivityAuthenticationHeader(authenticationType, jwt) {
if (authenticationType === 'PrincipalPropagation') {
if (jwt) {
return {
'SAP-Connectivity-Authentication': "Bearer ".concat(jwt)
};
}
throw new Error("Unable to create \"SAP-Connectivity-Authentication\" header: no JWT found on the current request.\n Connecting to on-premise systems via principle propagation is not possible.");
}
if (authenticationType === 'BasicAuthentication') {
logger.warn('You are connecting to an On-Premise system using basic authentication. For productive usage Principal propagation is recommended.');
}
return {};
}
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