overleaf/server-ce/migrations/10_update_project_tokens.js

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2019-09-20 09:56:25 +00:00
const Settings = require('settings-sharelatex')
const Async = require('async')
const mongojs = require('mongojs')
const db = mongojs(Settings.mongo.url, ['users'])
const indexKeys = { 'tokens.readAndWritePrefix': 1 }
const indexOpts = {
unique: true,
partialFilterExpression: {
'tokens.readAndWritePrefix': { $exists: true }
},
background: true
}
// Index on Prefix
const addReadAndWritePrefixIndex = (db, callback) => {
db.projects.ensureIndex(indexKeys, indexOpts, callback)
}
const removeReadAndWritePrefixIndex = (db, callback) => {
db.projects.dropIndex(indexKeys, callback)
}
// Extract prefix data
const extractPrefix = (db, callback) => {
db.projects.find(
{
'tokens.readAndWrite': { $exists: true },
'tokens.readAndWritePrefix': { $exists: false }
},
{ tokens: 1 },
(err, projects) => {
if (err) {
return callback(err)
}
console.log(`>> Updating ${projects.length} projects`)
Async.eachLimit(
projects,
5,
(project, cb) => {
const rwToken = project.tokens.readAndWrite
const prefixMatch = rwToken.match(/^(\d+).*$/)
if (!prefixMatch) {
const err = new Error(
`no prefix on token: ${project._id}, ${rwToken}`
)
console.log(`>> Error, ${err.message}`)
return cb(err)
}
db.projects.update(
{ _id: project._id },
{ $set: { 'tokens.readAndWritePrefix': prefixMatch[1] } },
cb
)
},
err => {
if (err) {
return callback(err)
}
console.log('>> done')
callback()
}
)
}
)
}
const erasePrefix = (db, callback) => {
db.projects.update({$unset: 'tokens.readAndWritePrefix'}, callback)
}
// Migrations
exports.migrate = (client, done) => {
console.log(`>> Adding index to projects: ${JSON.stringify(indexKeys)}, with options: ${JSON.stringify(indexOpts)}`)
addReadAndWritePrefixIndex(db, (err) => {
if(err) {
console.log(">> Error while adding index")
return done(err)
}
console.log(">> Extracting tokens.readAndWritePrefix field for existing projects")
extractPrefix(db, (err) => {
if(err) {
console.log(">> Error while extracting prefix data")
return done(err)
}
done()
})
})
}
exports.rollback = (client, done) => {
console.log(`>> Dropping index on projects: ${JSON.stringify(indexKeys)}`)
removeReadAndWritePrefixIndex(db, (err) => {
if(err) {
console.log(">> Error while dropping index")
return done(err)
}
console.log(">> Erasing tokens.readAndWritePrefix field for existing projects")
erasePrefix(db, (err) => {
if(err) {
console.log(">> Error while erasing prefix data")
return done(err)
}
done()
})
})
}