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96 lines
3 KiB
JavaScript
96 lines
3 KiB
JavaScript
import { promisify } from 'util'
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import request from 'requestretry' // allow retry on error https://github.com/FGRibreau/node-request-retry
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import logger from '@overleaf/logger'
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import Metrics from '@overleaf/metrics'
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import OError from '@overleaf/o-error'
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import Settings from '@overleaf/settings'
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import * as Errors from './Errors.js'
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import * as RedisManager from './RedisManager.js'
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// Don't let HTTP calls hang for a long time
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const DEFAULT_MAX_HTTP_REQUEST_LENGTH = 16000 // 16 seconds
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export function getHistoryId(projectId, callback) {
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Metrics.inc('history_id_cache_requests_total')
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RedisManager.getCachedHistoryId(projectId, (err, cachedHistoryId) => {
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if (err) return callback(err)
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if (cachedHistoryId) {
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Metrics.inc('history_id_cache_hits_total')
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callback(null, cachedHistoryId, true)
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} else {
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_getProjectDetails(projectId, function (error, project) {
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if (error) {
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return callback(error)
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}
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const historyId =
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project.overleaf &&
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project.overleaf.history &&
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project.overleaf.history.id
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if (historyId != null) {
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RedisManager.setCachedHistoryId(projectId, historyId, err => {
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if (err) return callback(err)
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callback(null, historyId, false)
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})
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} else {
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callback(null, historyId, false)
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}
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})
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}
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})
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}
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export function requestResync(projectId, callback) {
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const path = `/project/${projectId}/history/resync`
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_sendRequest(
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{ path, timeout: 6 * 60000, maxAttempts: 1, method: 'POST' },
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callback
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)
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}
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function _getProjectDetails(projectId, callback) {
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const path = `/project/${projectId}/details`
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logger.debug({ projectId }, 'getting project details from web')
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_sendRequest({ path, json: true }, callback)
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}
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function _sendRequest(options, callback) {
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const url = `${Settings.apis.web.url}${options.path}`
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request(
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{
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method: options.method || 'GET',
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url,
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json: options.json || false,
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timeout: options.timeout || DEFAULT_MAX_HTTP_REQUEST_LENGTH,
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maxAttempts: options.maxAttempts || 2, // for node-request-retry
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auth: {
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user: Settings.apis.web.user,
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pass: Settings.apis.web.pass,
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sendImmediately: true,
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},
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},
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function (error, res, body) {
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if (error != null) {
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return callback(OError.tag(error))
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}
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if (res.statusCode === 404) {
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logger.debug({ url }, 'got 404 from web api')
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error = new Errors.NotFoundError('got a 404 from web api')
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return callback(error)
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}
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if (res.statusCode >= 200 && res.statusCode < 300) {
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callback(null, body)
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} else {
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error = new OError(
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`web returned a non-success status code: ${res.statusCode} (attempts: ${res.attempts})`,
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{ url, res }
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)
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callback(error)
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}
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}
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)
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}
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export const promises = {
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getHistoryId: promisify(getHistoryId),
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requestResync: promisify(requestResync),
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}
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