overleaf/services/docstore/app/js/HealthChecker.js

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// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
* decaffeinate suggestions:
* DS102: Remove unnecessary code created because of implicit returns
* DS207: Consider shorter variations of null checks
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
*/
const { db, ObjectId } = require('./mongodb')
const request = require('request')
const async = require('async')
const _ = require('lodash')
const crypto = require('crypto')
const settings = require('@overleaf/settings')
const { port } = settings.internal.docstore
const logger = require('@overleaf/logger')
module.exports = {
check(callback) {
const docId = new ObjectId()
const projectId = new ObjectId(settings.docstore.healthCheck.project_id)
const url = `http://localhost:${port}/project/${projectId}/doc/${docId}`
const lines = [
'smoke test - delete me',
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`${crypto.randomBytes(32).toString('hex')}`,
]
const getOpts = () => ({
url,
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timeout: 3000,
})
logger.debug({ lines, url, docId, projectId }, 'running health check')
const jobs = [
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function (cb) {
const opts = getOpts()
opts.json = { lines, version: 42, ranges: {} }
return request.post(opts, cb)
},
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function (cb) {
const opts = getOpts()
opts.json = true
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return request.get(opts, function (err, res, body) {
if (err != null) {
logger.err({ err }, 'docstore returned a error in health check get')
return cb(err)
} else if (res == null) {
return cb(new Error('no response from docstore with get check'))
} else if ((res != null ? res.statusCode : undefined) !== 200) {
return cb(new Error(`status code not 200, its ${res.statusCode}`))
} else if (
_.isEqual(body != null ? body.lines : undefined, lines) &&
(body != null ? body._id : undefined) === docId.toString()
) {
return cb()
} else {
return cb(
new Error(
`health check lines not equal ${body.lines} != ${lines}`
)
)
}
})
},
cb => db.docs.deleteOne({ _id: docId, project_id: projectId }, cb),
]
return async.series(jobs, callback)
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},
}