import { callbackify } from 'util' import { setTimeout } from 'timers/promises' import logger from '@overleaf/logger' import Metrics from '@overleaf/metrics' import Settings from '@overleaf/settings' import { fetchNothing, fetchJson, RequestFailedError, } from '@overleaf/fetch-utils' import * as Errors from './Errors.js' import * as RedisManager from './RedisManager.js' let RETRY_TIMEOUT_MS = 5000 async function getHistoryId(projectId) { Metrics.inc('history_id_cache_requests_total') const cachedHistoryId = await RedisManager.promises.getCachedHistoryId(projectId) if (cachedHistoryId) { Metrics.inc('history_id_cache_hits_total') return cachedHistoryId } else { const project = await _getProjectDetails(projectId) const historyId = project.overleaf && project.overleaf.history && project.overleaf.history.id if (historyId != null) { await RedisManager.promises.setCachedHistoryId(projectId, historyId) } return historyId } } async function requestResync(projectId) { try { await fetchNothing( `${Settings.apis.web.url}/project/${projectId}/history/resync`, { method: 'POST', signal: AbortSignal.timeout(6 * 60000), basicAuth: { user: Settings.apis.web.user, password: Settings.apis.web.pass, }, } ) } catch (err) { if (err instanceof RequestFailedError && err.response.status === 404) { throw new Errors.NotFoundError('got a 404 from web api').withCause(err) } else { throw err } } } async function _getProjectDetails(projectId, callback) { logger.debug({ projectId }, 'getting project details from web') let attempts = 0 while (true) { attempts += 1 try { return await fetchJson( `${Settings.apis.web.url}/project/${projectId}/details`, { signal: AbortSignal.timeout(16000), basicAuth: { user: Settings.apis.web.user, password: Settings.apis.web.pass, }, } ) } catch (err) { if (err instanceof RequestFailedError && err.response.status === 404) { throw new Errors.NotFoundError('got a 404 from web api').withCause(err) } else if (attempts < 2) { // retry after 5 seconds await setTimeout(RETRY_TIMEOUT_MS) } else { throw err } } } } /** * Adjust the retry timeout in tests */ export async function setRetryTimeoutMs(timeoutMs) { RETRY_TIMEOUT_MS = timeoutMs } // EXPORTS const getHistoryIdCb = callbackify(getHistoryId) const requestResyncCb = callbackify(requestResync) export { getHistoryIdCb as getHistoryId, requestResyncCb as requestResync } export const promises = { getHistoryId, requestResync, }