overleaf/services/docstore/app.js
2020-09-10 18:07:14 +01:00

97 lines
3 KiB
JavaScript

/*
* 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 Metrics = require('@overleaf/metrics')
Metrics.initialize('docstore')
const Settings = require('settings-sharelatex')
const logger = require('logger-sharelatex')
const express = require('express')
const bodyParser = require('body-parser')
const mongodb = require('./app/js/mongodb')
const Errors = require('./app/js/Errors')
const HttpController = require('./app/js/HttpController')
logger.initialize('docstore')
if (Metrics.event_loop != null) {
Metrics.event_loop.monitor(logger)
}
const app = express()
app.use(Metrics.http.monitor(logger))
Metrics.injectMetricsRoute(app)
app.param('project_id', function (req, res, next, projectId) {
if (projectId != null ? projectId.match(/^[0-9a-f]{24}$/) : undefined) {
return next()
} else {
return next(new Error('invalid project id'))
}
})
app.param('doc_id', function (req, res, next, docId) {
if (docId != null ? docId.match(/^[0-9a-f]{24}$/) : undefined) {
return next()
} else {
return next(new Error('invalid doc id'))
}
})
Metrics.injectMetricsRoute(app)
app.get('/project/:project_id/doc', HttpController.getAllDocs)
app.get('/project/:project_id/ranges', HttpController.getAllRanges)
app.get('/project/:project_id/doc/:doc_id', HttpController.getDoc)
app.get('/project/:project_id/doc/:doc_id/raw', HttpController.getRawDoc)
// Add 64kb overhead for the JSON encoding, and double the size to allow for ranges in the json payload
app.post(
'/project/:project_id/doc/:doc_id',
bodyParser.json({ limit: (Settings.max_doc_length + 64 * 1024) * 2 }),
HttpController.updateDoc
)
app.delete('/project/:project_id/doc/:doc_id', HttpController.deleteDoc)
app.post('/project/:project_id/archive', HttpController.archiveAllDocs)
app.post('/project/:project_id/unarchive', HttpController.unArchiveAllDocs)
app.post('/project/:project_id/destroy', HttpController.destroyAllDocs)
app.get('/health_check', HttpController.healthCheck)
app.get('/status', (req, res) => res.send('docstore is alive'))
app.use(function (error, req, res, next) {
logger.error({ err: error, req }, 'request errored')
if (error instanceof Errors.NotFoundError) {
return res.sendStatus(404)
} else {
return res.status(500).send('Oops, something went wrong')
}
})
const { port } = Settings.internal.docstore
const { host } = Settings.internal.docstore
if (!module.parent) {
// Called directly
mongodb
.waitForDb()
.then(() => {
app.listen(port, host, function (err) {
if (err) {
logger.fatal({ err }, `Cannot bind to ${host}:${port}. Exiting.`)
process.exit(1)
}
return logger.info(`Docstore starting up, listening on ${host}:${port}`)
})
})
.catch((err) => {
logger.fatal({ err }, 'Cannot connect to mongo. Exiting.')
process.exit(1)
})
}
module.exports = app