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- logger = require "logger-sharelatex"
- request = require "request"
- settings = require "settings-sharelatex"
- AuthenticationController = require "../Authentication/AuthenticationController"
- ProjectDetailsHandler = require "../Project/ProjectDetailsHandler"
- module.exports = HistoryController =
- selectHistoryApi: (req, res, next = (error) ->) ->
- project_id = req.params?.Project_id
- # find out which type of history service this project uses
- ProjectDetailsHandler.getDetails project_id, (err, project) ->
- return next(err) if err?
- history = project.overleaf?.history
- if history?.id? and history?.display
- req.useProjectHistory = true
- else
- req.useProjectHistory = false
- next()
- proxyToHistoryApi: (req, res, next = (error) ->) ->
- user_id = AuthenticationController.getLoggedInUserId req
- url = HistoryController.buildHistoryServiceUrl(req.useProjectHistory) + req.url
- logger.log url: url, "proxying to history api"
- getReq = request(
- url: url
- method: req.method
- headers:
- "X-User-Id": user_id
- )
- getReq.pipe(res)
- getReq.on "error", (error) ->
- logger.error url: url, err: error, "history API error"
- next(error)
- buildHistoryServiceUrl: (useProjectHistory) ->
- # choose a history service, either document-level (trackchanges)
- # or project-level (project_history)
- if useProjectHistory
- return settings.apis.project_history.url
- else
- return settings.apis.trackchanges.url
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