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108 lines
3 KiB
CoffeeScript
108 lines
3 KiB
CoffeeScript
child = require "child_process"
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logger = require "logger-sharelatex"
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metrics = require "../../infrastructure/Metrics"
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fs = require "fs"
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Path = require "path"
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_ = require("underscore")
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ONE_MEG = 1024 * 1024
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module.exports = ArchiveManager =
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_isZipTooLarge: (source, callback = (err, isTooLarge)->)->
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callback = _.once callback
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unzip = child.spawn("unzip", ["-l", source])
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output = ""
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unzip.stdout.on "data", (d)->
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output += d
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error = null
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unzip.stderr.on "data", (chunk) ->
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error ||= ""
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error += chunk
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unzip.on "error", (err) ->
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logger.error {err, source}, "unzip failed"
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if err.code == "ENOENT"
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logger.error "unzip command not found. Please check the unzip command is installed"
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callback(err)
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unzip.on "close", (exitCode) ->
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if error?
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error = new Error(error)
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logger.error err:error, source: source, "error checking zip size"
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lines = output.split("\n")
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lastLine = lines[lines.length - 2]?.trim()
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totalSizeInBytes = lastLine?.split(" ")?[0]
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totalSizeInBytesAsInt = parseInt(totalSizeInBytes)
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if !totalSizeInBytesAsInt? or isNaN(totalSizeInBytesAsInt)
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logger.err source:source, totalSizeInBytes:totalSizeInBytes, totalSizeInBytesAsInt:totalSizeInBytesAsInt, lastLine:lastLine, exitCode:exitCode, "error getting bytes of zip"
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return callback(new Error("error getting bytes of zip"))
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isTooLarge = totalSizeInBytes > (ONE_MEG * 300)
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callback(error, isTooLarge)
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extractZipArchive: (source, destination, _callback = (err) ->) ->
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callback = (args...) ->
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_callback(args...)
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_callback = () ->
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ArchiveManager._isZipTooLarge source, (err, isTooLarge)->
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if err?
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logger.err err:err, "error checking size of zip file"
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return callback(err)
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if isTooLarge
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return callback(new Error("zip_too_large"))
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timer = new metrics.Timer("unzipDirectory")
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logger.log source: source, destination: destination, "unzipping file"
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unzip = child.spawn("unzip", [source, "-d", destination])
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# don't remove this line, some zips need
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# us to listen on this for some unknow reason
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unzip.stdout.on "data", (d)->
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error = null
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unzip.stderr.on "data", (chunk) ->
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error ||= ""
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error += chunk
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unzip.on "error", (err) ->
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logger.error {err, source, destination}, "unzip failed"
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if err.code == "ENOENT"
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logger.error "unzip command not found. Please check the unzip command is installed"
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callback(err)
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unzip.on "close", () ->
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timer.done()
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if error?
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error = new Error(error)
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logger.error err:error, source: source, destination: destination, "error unzipping file"
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callback(error)
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findTopLevelDirectory: (directory, callback = (error, topLevelDir) ->) ->
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fs.readdir directory, (error, files) ->
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return callback(error) if error?
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if files.length == 1
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childPath = Path.join(directory, files[0])
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fs.stat childPath, (error, stat) ->
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return callback(error) if error?
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if stat.isDirectory()
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return callback(null, childPath)
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else
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return callback(null, directory)
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else
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return callback(null, directory)
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