58 lines
2.7 KiB
JavaScript
58 lines
2.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.resolveDefaultsModeConfig = void 0;
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const config_resolver_1 = require("@aws-sdk/config-resolver");
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const credential_provider_imds_1 = require("@aws-sdk/credential-provider-imds");
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const node_config_provider_1 = require("@aws-sdk/node-config-provider");
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const property_provider_1 = require("@aws-sdk/property-provider");
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const constants_1 = require("./constants");
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const defaultsModeConfig_1 = require("./defaultsModeConfig");
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const resolveDefaultsModeConfig = ({ region = (0, node_config_provider_1.loadConfig)(config_resolver_1.NODE_REGION_CONFIG_OPTIONS), defaultsMode = (0, node_config_provider_1.loadConfig)(defaultsModeConfig_1.NODE_DEFAULTS_MODE_CONFIG_OPTIONS), } = {}) => (0, property_provider_1.memoize)(async () => {
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const mode = typeof defaultsMode === "function" ? await defaultsMode() : defaultsMode;
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switch (mode === null || mode === void 0 ? void 0 : mode.toLowerCase()) {
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case "auto":
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return resolveNodeDefaultsModeAuto(region);
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case "in-region":
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case "cross-region":
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case "mobile":
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case "standard":
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case "legacy":
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return Promise.resolve(mode === null || mode === void 0 ? void 0 : mode.toLocaleLowerCase());
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case undefined:
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return Promise.resolve("legacy");
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default:
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throw new Error(`Invalid parameter for "defaultsMode", expect ${constants_1.DEFAULTS_MODE_OPTIONS.join(", ")}, got ${mode}`);
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}
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});
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exports.resolveDefaultsModeConfig = resolveDefaultsModeConfig;
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const resolveNodeDefaultsModeAuto = async (clientRegion) => {
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if (clientRegion) {
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const resolvedRegion = typeof clientRegion === "function" ? await clientRegion() : clientRegion;
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const inferredRegion = await inferPhysicalRegion();
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if (!inferredRegion) {
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return "standard";
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}
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if (resolvedRegion === inferredRegion) {
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return "in-region";
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}
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else {
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return "cross-region";
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}
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}
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return "standard";
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};
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const inferPhysicalRegion = async () => {
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var _a;
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if (process.env[constants_1.AWS_EXECUTION_ENV] && (process.env[constants_1.AWS_REGION_ENV] || process.env[constants_1.AWS_DEFAULT_REGION_ENV])) {
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return (_a = process.env[constants_1.AWS_REGION_ENV]) !== null && _a !== void 0 ? _a : process.env[constants_1.AWS_DEFAULT_REGION_ENV];
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}
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if (!process.env[constants_1.ENV_IMDS_DISABLED]) {
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try {
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const endpoint = await (0, credential_provider_imds_1.getInstanceMetadataEndpoint)();
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return (await (0, credential_provider_imds_1.httpRequest)({ ...endpoint, path: constants_1.IMDS_REGION_PATH })).toString();
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}
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catch (e) {
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}
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}
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};
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