@sap-cloud-sdk/core/dist/http-client/http-client.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.shouldHandleCsrfToken = exports.getAxiosConfigWithDefaultsWithoutMethod = exports.getAxiosConfigWithDefaults = exports.executeHttpRequest = exports.buildAxiosRequestConfig = exports.execute = exports.addDestinationToRequestConfig = exports.buildHttpRequest = void 0;
var http = __importStar(require("http"));
var https = __importStar(require("https"));
var util_1 = require("@sap-cloud-sdk/util");
var axios_1 = __importDefault(require("axios"));
var scp_cf_1 = require("../connectivity/scp-cf");
var http_client_1 = require("../http-client");
var http_agent_1 = require("../http-agent/http-agent");
var logger = (0, util_1.createLogger)({
    package: 'core',
    messageContext: 'http-client'
});
/**
 * Builds a [[DestinationHttpRequestConfig]] for the given destination.
 * If a destination name (and a JWT) are provided, it will try to resolve the destination.
 * @param destination - A destination or a destination name and a JWT.
 * @param customHeaders - Custom default headers for the resulting HTTP request.
 * @returns A [[DestinationHttpRequestConfig]].
 */
function buildHttpRequest(destination, customHeaders) {
    return __awaiter(this, void 0, void 0, function () {
        var resolvedDestination, headers;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    if (customHeaders) {
                        logger.info("The following custom headers will overwrite headers created by the SDK:\n".concat(Object.keys(customHeaders)
                            .map(function (key) { return "  - \"".concat(key, "\""); })
                            .join('\n')));
                    }
                    return [4 /*yield*/, resolveDestination(destination)];
                case 1:
                    resolvedDestination = _a.sent();
                    if (!resolvedDestination) {
                        throw Error("Failed to resolve the destination '".concat((0, scp_cf_1.toDestinationNameUrl)(destination), "'."));
                    }
                    return [4 /*yield*/, buildHeaders(resolvedDestination, customHeaders)];
                case 2:
                    headers = _a.sent();
                    return [2 /*return*/, buildDestinationHttpRequestConfig(resolvedDestination, headers)];
            }
        });
    });
}
exports.buildHttpRequest = buildHttpRequest;
/**
 * Builds a [[DestinationHttpRequestConfig]] for the given destination
 * and then merges it into the given request configuration.
 * Setting of the given request configuration take precedence over any destination related configuration.
 * @param destination - A destination or a destination name and a JWT.
 * @param requestConfig - Any object representing an HTTP request.
 * @returns The given request config merged with the config built for the given destination.
 */
function addDestinationToRequestConfig(destination, requestConfig) {
    return buildHttpRequest(destination).then(function (destinationConfig) {
        return merge(destinationConfig, requestConfig);
    });
}
exports.addDestinationToRequestConfig = addDestinationToRequestConfig;
/**
 * Takes as parameter a function that expects an [[HttpRequest]] and returns a Promise of [[HttpResponse]].
 * Returns a function that takes a destination and a request-config (extends [[HttpRequestConfig]]), builds an [[HttpRequest]] from them, and calls
 * the provided execute function.
 *
 * NOTE: If you simply want to execute a request without passing your own execute function, use [[executeHttpRequest]] instead.
 * @param executeFn - A function that can execute an [[HttpRequestConfig]].
 * @returns A function expecting destination and a request.
 */
function execute(executeFn) {
    return function (destination, requestConfig, options) {
        return __awaiter(this, void 0, void 0, function () {
            var destinationRequestConfig, request, _a;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0: return [4 /*yield*/, buildHttpRequest(destination, requestConfig.headers)];
                    case 1:
                        destinationRequestConfig = _b.sent();
                        request = merge(destinationRequestConfig, requestConfig);
                        _a = request;
                        return [4 /*yield*/, addCsrfTokenToHeader(destination, request, options)];
                    case 2:
                        _a.headers = _b.sent();
                        logRequestInformation(request);
                        return [2 /*return*/, executeFn(request)];
                }
            });
        });
    };
}
exports.execute = execute;
function logRequestInformation(request) {
    var basicRequestInfo = "Execute '".concat(request.method, "' request with target: ").concat(request.url, ".");
    var headerText = Object.keys(request.headers).reduce(function (previous, key) {
        if (key.toLowerCase().includes('authentication') ||
            key.toLowerCase().includes('authorization')) {
            return "".concat(previous).concat(util_1.unixEOL).concat(key, ":*******");
        }
        return "".concat(previous).concat(util_1.unixEOL).concat(key, ":").concat(request.headers[key]);
    }, 'The headers of the request are:');
    logger.debug("".concat(basicRequestInfo).concat(util_1.unixEOL).concat(headerText));
}
/**
 *
 * @experimental This API is experimental and might change in newer versions. Use with caution.
 * @param destination - A destination or a destination name and a JWT.
 * @param requestConfig - Any object representing an HTTP request.
 */
function buildAxiosRequestConfig(destination, requestConfig) {
    return __awaiter(this, void 0, void 0, function () {
        var destinationRequestConfig, request;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0: return [4 /*yield*/, buildHttpRequest(destination, requestConfig === null || requestConfig === void 0 ? void 0 : requestConfig.headers)];
                case 1:
                    destinationRequestConfig = _a.sent();
                    request = requestConfig
                        ? merge(destinationRequestConfig, requestConfig)
                        : destinationRequestConfig;
                    return [2 /*return*/, __assign(__assign({}, getAxiosConfigWithDefaultsWithoutMethod()), request)];
            }
        });
    });
}
exports.buildAxiosRequestConfig = buildAxiosRequestConfig;
/**
 * Builds a [[DestinationHttpRequestConfig]] for the given destination, merges it into the given requestConfig
 * and executes it (using Axios).
 * @param destination - A destination or a destination name and a JWT.
 * @param requestConfig - Any object representing an HTTP request.
 * @param options - An [[HttpRequestOptions]] of the http request for configuring e.g., csrf token delegation. By default, the SDK will not fetch the csrf token.
 * @returns A promise resolving to an [[HttpResponse]].
 */
function executeHttpRequest(destination, requestConfig, options) {
    return execute(executeWithAxios)(destination, requestConfig, options);
}
exports.executeHttpRequest = executeHttpRequest;
function buildDestinationHttpRequestConfig(destination, headers) {
    return __assign({ baseURL: destination.url, headers: headers, params: destination.queryParameters }, (0, http_agent_1.getAgentConfig)(destination));
}
function buildHeaders(destination, customHeaders) {
    return (0, scp_cf_1.buildHeadersForDestination)(destination, customHeaders).catch(function (error) {
        throw new util_1.ErrorWithCause('Failed to build headers.', error);
    });
}
function resolveDestination(destination) {
    return (0, scp_cf_1.useOrFetchDestination)(destination).catch(function (error) {
        throw new util_1.ErrorWithCause('Failed to load destination.', error);
    });
}
function merge(destinationRequestConfig, customRequestConfig) {
    return __assign(__assign(__assign({}, destinationRequestConfig), customRequestConfig), { headers: __assign(__assign({}, destinationRequestConfig.headers), customRequestConfig.headers) });
}
function mergeRequestWithAxiosDefaults(request) {
    return __assign(__assign({}, getAxiosConfigWithDefaults()), request);
}
function executeWithAxios(request) {
    return axios_1.default.request(mergeRequestWithAxiosDefaults(request));
}
/**
 * Builds an Axios config with default configuration i.e. no_proxy, default http and https agent and GET as request method.
 * @returns AxiosRequestConfig with default parameters
 */
function getAxiosConfigWithDefaults() {
    return __assign(__assign({}, getAxiosConfigWithDefaultsWithoutMethod()), { method: 'get' });
}
exports.getAxiosConfigWithDefaults = getAxiosConfigWithDefaults;
function getAxiosConfigWithDefaultsWithoutMethod() {
    return {
        proxy: false,
        httpAgent: new http.Agent(),
        httpsAgent: new https.Agent(),
        paramsSerializer: function (params) {
            if (params === void 0) { params = {}; }
            return Object.entries(params)
                .map(function (_a) {
                var key = _a[0], value = _a[1];
                return "".concat(key, "=").concat(value);
            })
                .join('&');
        }
    };
}
exports.getAxiosConfigWithDefaultsWithoutMethod = getAxiosConfigWithDefaultsWithoutMethod;
function getDefaultHttpRequestOptions() {
    // TODO: 2.0 change to true
    return {
        fetchCsrfToken: false
    };
}
function buildHttpRequestOptions(httpRequestOptions) {
    return httpRequestOptions
        ? __assign(__assign({}, getDefaultHttpRequestOptions()), httpRequestOptions) : getDefaultHttpRequestOptions();
}
function shouldHandleCsrfToken(requestConfig, options) {
    return (!!options.fetchCsrfToken &&
        requestConfig.method !== 'get' &&
        requestConfig.method !== 'GET');
}
exports.shouldHandleCsrfToken = shouldHandleCsrfToken;
function getCsrfHeaders(destination, request) {
    return __awaiter(this, void 0, void 0, function () {
        var csrfHeaders;
        return __generator(this, function (_a) {
            csrfHeaders = (0, util_1.pickIgnoreCase)(request.headers, 'x-csrf-token');
            return [2 /*return*/, Object.keys(csrfHeaders).length
                    ? csrfHeaders
                    : (0, http_client_1.buildCsrfHeaders)(destination, {
                        params: request.params,
                        headers: request.headers,
                        url: request.url,
                        proxy: request.proxy,
                        httpAgent: request.httpAgent,
                        httpsAgent: request.httpsAgent
                    })];
        });
    });
}
function addCsrfTokenToHeader(destination, request, httpRequestOptions) {
    return __awaiter(this, void 0, void 0, function () {
        var options, csrfHeaders, _a;
        return __generator(this, function (_b) {
            switch (_b.label) {
                case 0:
                    options = buildHttpRequestOptions(httpRequestOptions);
                    if (!shouldHandleCsrfToken(request, options)) return [3 /*break*/, 2];
                    return [4 /*yield*/, getCsrfHeaders(destination, request)];
                case 1:
                    _a = _b.sent();
                    return [3 /*break*/, 3];
                case 2:
                    _a = {};
                    _b.label = 3;
                case 3:
                    csrfHeaders = _a;
                    return [2 /*return*/, __assign(__assign({}, request.headers), csrfHeaders)];
            }
        });
    });
}
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