113 lines
3.3 KiB
JavaScript
113 lines
3.3 KiB
JavaScript
var util = require('./util');
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var regionConfig = require('./region_config_data.json');
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function generateRegionPrefix(region) {
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if (!region) return null;
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var parts = region.split('-');
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if (parts.length < 3) return null;
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return parts.slice(0, parts.length - 2).join('-') + '-*';
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}
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function derivedKeys(service) {
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var region = service.config.region;
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var regionPrefix = generateRegionPrefix(region);
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var endpointPrefix = service.api.endpointPrefix;
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return [
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[region, endpointPrefix],
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[regionPrefix, endpointPrefix],
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[region, '*'],
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[regionPrefix, '*'],
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['*', endpointPrefix],
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[region, 'internal-*'],
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['*', '*']
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].map(function(item) {
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return item[0] && item[1] ? item.join('/') : null;
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});
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}
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function applyConfig(service, config) {
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util.each(config, function(key, value) {
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if (key === 'globalEndpoint') return;
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if (service.config[key] === undefined || service.config[key] === null) {
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service.config[key] = value;
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}
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});
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}
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function configureEndpoint(service) {
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var keys = derivedKeys(service);
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var useFipsEndpoint = service.config.useFipsEndpoint;
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var useDualstackEndpoint = service.config.useDualstackEndpoint;
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for (var i = 0; i < keys.length; i++) {
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var key = keys[i];
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if (!key) continue;
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var rules = useFipsEndpoint
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? useDualstackEndpoint
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? regionConfig.dualstackFipsRules
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: regionConfig.fipsRules
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: useDualstackEndpoint
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? regionConfig.dualstackRules
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: regionConfig.rules;
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if (Object.prototype.hasOwnProperty.call(rules, key)) {
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var config = rules[key];
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if (typeof config === 'string') {
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config = regionConfig.patterns[config];
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}
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// set global endpoint
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service.isGlobalEndpoint = !!config.globalEndpoint;
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if (config.signingRegion) {
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service.signingRegion = config.signingRegion;
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}
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// signature version
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if (!config.signatureVersion) {
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// Note: config is a global object and should not be mutated here.
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// However, we are retaining this line for backwards compatibility.
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// The non-v4 signatureVersion will be set in a copied object below.
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config.signatureVersion = 'v4';
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}
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var useBearer = (service.api && service.api.signatureVersion) === 'bearer';
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// merge config
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applyConfig(service, Object.assign(
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{},
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config,
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{ signatureVersion: useBearer ? 'bearer' : config.signatureVersion }
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));
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return;
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}
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}
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}
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function getEndpointSuffix(region) {
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var regionRegexes = {
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'^(us|eu|ap|sa|ca|me)\\-\\w+\\-\\d+$': 'amazonaws.com',
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'^cn\\-\\w+\\-\\d+$': 'amazonaws.com.cn',
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'^us\\-gov\\-\\w+\\-\\d+$': 'amazonaws.com',
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'^us\\-iso\\-\\w+\\-\\d+$': 'c2s.ic.gov',
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'^us\\-isob\\-\\w+\\-\\d+$': 'sc2s.sgov.gov',
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'^eu\\-isoe\\-west\\-1$': 'cloud.adc-e.uk',
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'^us\\-isof\\-\\w+\\-\\d+$': 'csp.hci.ic.gov',
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};
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var defaultSuffix = 'amazonaws.com';
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var regexes = Object.keys(regionRegexes);
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for (var i = 0; i < regexes.length; i++) {
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var regionPattern = RegExp(regexes[i]);
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var dnsSuffix = regionRegexes[regexes[i]];
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if (regionPattern.test(region)) return dnsSuffix;
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}
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return defaultSuffix;
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}
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/**
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* @api private
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*/
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module.exports = {
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configureEndpoint: configureEndpoint,
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getEndpointSuffix: getEndpointSuffix,
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};
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