overleaf/services/filestore/app/coffee/KeyBuilder.coffee

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CoffeeScript
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settings = require("settings-sharelatex")
module.exports =
getConvertedFolderKey: (key)->
key = "#{key}-converted-cache/"
addCachingToKey: (key, opts)->
key = @getConvertedFolderKey(key)
if opts.format? and !opts.style?
key = "#{key}format-#{opts.format}"
if opts.style? and !opts.format?
key = "#{key}style-#{opts.style}"
if opts.style? and opts.format?
key = "#{key}format-#{opts.format}-style-#{opts.style}"
return key
userFileKey: (req, res, next)->
{project_id, file_id} = req.params
req.key = "#{project_id}/#{file_id}"
req.bucket = settings.filestore.stores.user_files
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next()
templateFileKey: (req, res, next)->
{template_id, format, version} = req.params
req.key = "#{template_id}/v/#{version}/#{format}"
req.bucket = settings.filestore.stores.template_files
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req.version = version
opts = req.query
next()