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collector.js
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/*********************
Collector - The collector will query AWS APIs for the information required
to run the CloudSploit scans. This data will be returned in the callback
as a JSON object.
Arguments:
- AWSConfig: If using an access key/secret, pass in the config object. Pass null if not.
- settings: custom settings for the scan. Properties:
- skip_regions: (Optional) List of regions to skip
- api_calls: (Optional) If provided, will only query these APIs.
- Example:
{
"skip_regions": ["us-east-2", "eu-west-1"],
"api_calls": ["EC2:describeInstances", "S3:listBuckets"]
}
- callback: Function to call when the collection is complete
*********************/
var AWS = require('aws-sdk');
var async = require('async');
var https = require('https');
var helpers = require(__dirname + '/../../helpers/aws');
var collectors = require(__dirname + '/../../collectors/aws');
var collectData = require(__dirname + '/../../helpers/shared.js');
// Override max sockets
var agent = new https.Agent({maxSockets: 100});
AWS.config.update({httpOptions: {agent: agent}});
var rateError = {message: 'rate', statusCode: 429};
var apiRetryAttempts = 2;
var apiRetryBackoff = 500;
var apiRetryCap = 1000;
// Loop through all of the top-level collectors for each service
var collect = function(AWSConfig, settings, callback) {
let apiCallErrors = 0;
let apiCallTypeErrors = 0;
let totalApiCallErrors = 0;
// Used to track rate limiting retries
let retries = [];
// Used to gather info only
if (settings.gather) {
return callback(null, helpers.calls, helpers.postcalls);
}
// Configure an opt-in debug logger
var AWSXRay;
var debugMode = settings.debug_mode;
if (debugMode) AWSXRay = require('aws-xray-sdk');
AWSConfig.maxRetries = 8;
AWSConfig.retryDelayOptions = {base: 100};
var regions = helpers.regions(settings);
var collection = {};
var errors = {};
var errorSummary = {};
var errorTypeSummary = {};
let runApiCalls = [];
var AWSEC2 = new AWS.EC2(AWSConfig);
var params = {AllRegions: true};
var excludeRegions = [];
AWSEC2.describeRegions(params, function(err, accountRegions) {
if (err) {
console.log(`[INFO][REGIONS] Could not load all regions from EC2: ${JSON.stringify(err)}`);
} else {
if (accountRegions &&
accountRegions.Regions) {
excludeRegions = accountRegions.Regions.filter(region => {
return region.OptInStatus == 'not-opted-in';
});
}
}
async.eachOfLimit(helpers.calls, 10, function(call, service, serviceCb) {
var serviceName = service;
var serviceLower = service.toLowerCase();
if (!collection[serviceLower]) collection[serviceLower] = {};
// Loop through each of the service's functions
async.eachOfLimit(call, 15, function(callObj, callKey, callCb) {
if (settings.api_calls && settings.api_calls.indexOf(serviceName + ':' + callKey) === -1) return callCb();
runApiCalls.push(serviceName + ':' + callKey);
if (!collection[serviceLower][callKey]) {
collection[serviceLower][callKey] = {};
apiCallErrors = 0;
apiCallTypeErrors = 0;
}
helpers.debugApiCalls(callKey, serviceName, debugMode);
var callRegions;
if (callObj.default) {
callRegions = regions.default;
} else {
callRegions = regions[serviceLower];
}
async.eachLimit(callRegions, helpers.MAX_REGIONS_AT_A_TIME, function(region, regionCb) {
if (settings.skip_regions &&
settings.skip_regions.indexOf(region) > -1 &&
helpers.globalServices.indexOf(serviceName) === -1) return regionCb();
if (excludeRegions &&
excludeRegions.filter(excluded=> {
if (excluded.RegionName == region) {
return true;
}
}).length){
return regionCb();
}
if (!collection[serviceLower][callKey][region]) collection[serviceLower][callKey][region] = {};
var LocalAWSConfig = JSON.parse(JSON.stringify(AWSConfig));
LocalAWSConfig.region = region;
if (callObj.override) {
collectors[serviceLower][callKey](LocalAWSConfig, collection, retries, function() {
if (callObj.rateLimit) {
setTimeout(function() {
regionCb();
}, callObj.rateLimit);
} else {
regionCb();
}
});
} else {
var executor = debugMode ? (AWSXRay.captureAWSClient(new AWS[serviceName](LocalAWSConfig))) : new AWS[serviceName](LocalAWSConfig);
var paginating = false;
var executorCb = function(err, data) {
if (err) {
collection[serviceLower][callKey][region].err = err;
helpers.logError(serviceLower, callKey, region, err, errors, apiCallErrors, apiCallTypeErrors, totalApiCallErrors, errorSummary, errorTypeSummary, debugMode);
}
if (!data) return regionCb();
if (callObj.property && !data[callObj.property]) return regionCb();
if (callObj.secondProperty && !data[callObj.secondProperty]) return regionCb();
var dataToAdd = callObj.secondProperty ? data[callObj.property][callObj.secondProperty] : data[callObj.property] ? data[callObj.property] : data;
if (paginating) {
collection[serviceLower][callKey][region].data = collection[serviceLower][callKey][region].data.concat(dataToAdd);
} else {
collection[serviceLower][callKey][region].data = dataToAdd;
}
// If a "paginate" property is set, e.g. NextToken
var nextToken = callObj.paginate;
if (settings.paginate && nextToken && data[nextToken]) {
paginating = true;
var paginateProp = callObj.paginateReqProp ? callObj.paginateReqProp : nextToken;
return execute([paginateProp, data[nextToken]]);
}
regionCb();
};
function execute(nextTokens) { // eslint-disable-line no-inner-declarations
// Each region needs its own local copy of callObj.params
// so that the injection of the NextToken doesn't break other calls
var localParams = JSON.parse(JSON.stringify(callObj.params || {}));
if (nextTokens) localParams[nextTokens[0]] = nextTokens[1];
if (callObj.params || nextTokens) {
async.retry({
times: apiRetryAttempts,
interval: function(retryCount){
let retryExponential = 3;
let retryLeveler = 3;
let timestamp = parseInt(((new Date()).getTime()).toString().slice(-1));
let retry_temp = Math.min(apiRetryCap, (apiRetryBackoff * (retryExponential + timestamp) ** retryCount));
let retry_seconds = Math.round(retry_temp/retryLeveler + Math.random(0, retry_temp) * 5000);
console.log(`Trying ${callKey} again in: ${retry_seconds/1000} seconds`);
retries.push({seconds: Math.round(retry_seconds/1000)});
return retry_seconds;
},
errorFilter: function(err) {
return helpers.collectRateError(err, rateError);
}
}, function(cb) {
executor[callKey](localParams, function(err, data) {
return cb(err, data);
});
}, function(err, data){
executorCb(err, data);
});
} else {
async.retry({
times: apiRetryAttempts,
interval: function(retryCount){
let retryExponential = 3;
let retryLeveler = 3;
let timestamp = parseInt(((new Date()).getTime()).toString().slice(-1));
let retry_temp = Math.min(apiRetryCap, (apiRetryBackoff * (retryExponential + timestamp) ** retryCount));
let retry_seconds = Math.round(retry_temp/retryLeveler + Math.random(0, retry_temp) * 5000);
console.log(`Trying ${callKey} again in: ${retry_seconds/1000} seconds`);
retries.push({seconds: Math.round(retry_seconds/1000)});
return retry_seconds;
},
errorFilter: function(err) {
return helpers.collectRateError(err, rateError);
}
}, function(cb) {
executor[callKey](function(err, data) {
return cb(err, data);
});
}, function(err, data){
executorCb(err, data);
});
}
}
execute();
}
}, function() {
helpers.debugApiCalls(callKey, serviceName, debugMode);
callCb();
});
}, function() {
return serviceCb();
});
}, function() {
// Now loop through the follow up calls
async.eachSeries(helpers.postcalls, function(postcallObj, postcallCb) {
async.eachOfLimit(postcallObj, 10, function(serviceObj, service, serviceCb) {
var serviceName = service;
var serviceLower = service.toLowerCase();
var serviceIntegration = {
enabled : postcallObj && postcallObj[serviceName] && postcallObj[serviceName].sendIntegration && postcallObj[serviceName].sendIntegration.enabled ? true : false,
sendLast : postcallObj && postcallObj[serviceName] && postcallObj[serviceName].sendIntegration && postcallObj[serviceName].sendIntegration.sendLast ? true : false
};
if (!collection[serviceLower]) collection[serviceLower] = {};
async.eachOfLimit(serviceObj, 1, function(callObj, callKey, callCb) {
if (settings.api_calls && settings.api_calls.indexOf(serviceName + ':' + callKey) === -1) return callCb();
runApiCalls.push(serviceName + ':' + callKey);
if (!collection[serviceLower][callKey]) {
collection[serviceLower][callKey] = {};
apiCallErrors = 0;
apiCallTypeErrors = 0;
}
helpers.debugApiCalls(callKey, serviceName, debugMode);
async.eachLimit(regions[serviceLower], helpers.MAX_REGIONS_AT_A_TIME, function(region, regionCb) {
if (settings.skip_regions &&
settings.skip_regions.indexOf(region) > -1 &&
helpers.globalServices.indexOf(serviceName) === -1) return regionCb();
if (excludeRegions &&
excludeRegions.filter(excluded=> {
if (excluded.RegionName == region) {
return true;
}
}).length){
return regionCb();
}
if (!collection[serviceLower][callKey][region]) collection[serviceLower][callKey][region] = {};
// Ensure pre-requisites are met
if (callObj.reliesOnService && !collection[callObj.reliesOnService]) return regionCb();
if (callObj.reliesOnCall &&
(!collection[callObj.reliesOnService] ||
!collection[callObj.reliesOnService][callObj.reliesOnCall] ||
!collection[callObj.reliesOnService][callObj.reliesOnCall][region] ||
!collection[callObj.reliesOnService][callObj.reliesOnCall][region].data ||
!collection[callObj.reliesOnService][callObj.reliesOnCall][region].data.length))
return regionCb();
var LocalAWSConfig = JSON.parse(JSON.stringify(AWSConfig));
if (callObj.deleteRegion) {
//delete LocalAWSConfig.region;
LocalAWSConfig.region = settings.govcloud ? 'us-gov-west-1' : settings.china ? 'cn-north-1' : 'us-east-1';
} else {
LocalAWSConfig.region = region;
}
if (callObj.signatureVersion) LocalAWSConfig.signatureVersion = callObj.signatureVersion;
if (callObj.override) {
collectors[serviceLower][callKey](LocalAWSConfig, collection, retries, function() {
if (callObj.rateLimit) {
setTimeout(function() {
regionCb();
}, callObj.rateLimit);
} else {
regionCb();
}
});
} else {
var executor = debugMode ? (AWSXRay.captureAWSClient(new AWS[serviceName](LocalAWSConfig))) : new AWS[serviceName](LocalAWSConfig);
if (!collection[callObj.reliesOnService][callObj.reliesOnCall][LocalAWSConfig.region] ||
!collection[callObj.reliesOnService][callObj.reliesOnCall][LocalAWSConfig.region].data) {
return regionCb();
}
async.eachLimit(collection[callObj.reliesOnService][callObj.reliesOnCall][LocalAWSConfig.region].data, 10, function(dep, depCb) {
collection[serviceLower][callKey][LocalAWSConfig.region][dep[callObj.filterValue]] = {};
var filter = {};
filter[callObj.filterKey] = dep[callObj.filterValue];
async.retry({
times: apiRetryAttempts,
interval: function(retryCount){
let retryExponential = 3;
let retryLeveler = 3;
let timestamp = parseInt(((new Date()).getTime()).toString().slice(-1));
let retry_temp = Math.min(apiRetryCap, (apiRetryBackoff * (retryExponential + timestamp) ** retryCount));
let retry_seconds = Math.round(retry_temp/retryLeveler + Math.random(0, retry_temp) * 5000);
console.log(`Trying ${callKey} again in: ${retry_seconds/1000} seconds`);
retries.push({seconds: Math.round(retry_seconds/1000)});
return retry_seconds;
},
errorFilter: function(err) {
return helpers.collectRateError(err, rateError);
}
}, function(cb) {
executor[callKey](filter, function(err, data) {
if (helpers.collectRateError(err, rateError)) {
return cb(err);
} else if (err) {
collection[serviceLower][callKey][LocalAWSConfig.region][dep[callObj.filterValue]].err = err;
helpers.logError(serviceLower, callKey, region, err, errors, apiCallErrors, apiCallTypeErrors, totalApiCallErrors, errorSummary, errorTypeSummary, debugMode);
return cb();
} else {
collection[serviceLower][callKey][LocalAWSConfig.region][dep[callObj.filterValue]].data = data;
return cb();
}
});
}, function(){
if (callObj.rateLimit) {
setTimeout(function() {
depCb();
}, callObj.rateLimit);
} else {
depCb();
}
});
}, function() {
regionCb();
});
}
}, function() {
helpers.debugApiCalls(callKey, serviceName, debugMode);
callCb();
});
}, function() {
if (serviceIntegration.enabled &&
!serviceIntegration.sendLast &&
settings.identifier &&
collection[serviceLower] &&
Object.keys(collection[serviceLower]) &&
Object.keys(collection[serviceLower]).length &&
collectData.callsCollected(serviceName, collection, helpers.calls, helpers.postcalls)
) {
try {
collectData.processIntegration(serviceName, settings, collection, helpers.calls, helpers.postcalls, debugMode,function() {
return serviceCb();
});
} catch (e) {
return serviceCb();
}
} else {
return serviceCb();
}
});
}, function() {
postcallCb();
});
}, function() {
if (settings.identifier) {
async.each(helpers.integrationSendLast, function(serv, cb) {
settings.identifier.service = serv.toLowerCase();
if (collection[serv.toLowerCase()] &&
Object.keys(collection[serv.toLowerCase()]) &&
Object.keys(collection[serv.toLowerCase()]).length &&
collectData.callsCollected(serv, collection, helpers.calls, helpers.postcalls)
) {
try {
collectData.processIntegration(serv, settings, collection, helpers.calls, helpers.postcalls, debugMode, function() {
console.log(`Integration for service ${serv} processed.`);
cb();
});
} catch (e) {
cb();
}
} else {
cb();
}
}, function() {
callback(null, collection, runApiCalls, errorSummary, errorTypeSummary, errors, retries);
});
} else {
callback(null, collection, runApiCalls, errorSummary, errorTypeSummary, errors, retries);
}
});
});
});
};
module.exports = collect;