overleaf/services/filestore/app/coffee/S3PersistorManager.coffee
2014-06-02 17:25:40 +01:00

133 lines
4.9 KiB
CoffeeScript

http = require('http')
http.globalAgent.maxSockets = 300
https = require('https')
https.globalAgent.maxSockets = 300
settings = require("settings-sharelatex")
request = require("request")
logger = require("logger-sharelatex")
fs = require("fs")
knox = require("knox")
path = require("path")
LocalFileWriter = require("./LocalFileWriter")
_ = require("underscore")
thirtySeconds = 30 * 1000
printSockets = ->
console.log require('https').globalAgent.sockets
console.log require('http').globalAgent.sockets
setTimeout printSockets, thirtySeconds
printSockets()
buildDefaultOptions = (bucketName, method, key)->
return {
aws:
key: settings.filestore.s3.key
secret: settings.filestore.s3.secret
bucket: bucketName
method: method
timeout: thirtySeconds
uri:"https://#{bucketName}.s3.amazonaws.com/#{key}"
}
module.exports =
sendFile: (bucketName, key, fsPath, callback)->
s3Client = knox.createClient
key: settings.filestore.s3.key
secret: settings.filestore.s3.secret
bucket: bucketName
putEventEmiter = s3Client.putFile fsPath, key, (err, res)->
if err?
logger.err err:err, bucketName:bucketName, key:key, fsPath:fsPath,"something went wrong uploading file to s3"
return callback(err)
if !res?
logger.err err:err, res:res, bucketName:bucketName, key:key, fsPath:fsPath, "no response from s3 put file"
return callback("no response from put file")
if res.statusCode != 200
logger.err bucketName:bucketName, key:key, fsPath:fsPath, "non 200 response from s3 putting file"
return callback("non 200 response from s3 on put file")
LocalFileWriter.deleteFile fsPath, (err)->
logger.log res:res, bucketName:bucketName, key:key, fsPath:fsPath,"file uploaded to s3"
callback(err)
putEventEmiter.on "error", (err)->
logger.err err:err, bucketName:bucketName, key:key, fsPath:fsPath, "error emmited on put of file"
callback err
sendStream: (bucketName, key, readStream, callback)->
logger.log bucketName:bucketName, key:key, "sending file to s3"
readStream.on "error", (err)->
logger.err bucketName:bucketName, key:key, "error on stream to send to s3"
LocalFileWriter.writeStream readStream, null, (err, fsPath)=>
if err?
logger.err bucketName:bucketName, key:key, fsPath:fsPath, err:err, "something went wrong writing stream to disk"
return callback(err)
@sendFile bucketName, key, fsPath, callback
getFileStream: (bucketName, key, callback = (err, res)->)->
logger.log bucketName:bucketName, key:key, "getting file from s3"
s3Client = knox.createClient
key: settings.filestore.s3.key
secret: settings.filestore.s3.secret
bucket: bucketName
s3Stream = s3Client.get(key)
s3Stream.end()
s3Stream.on 'response', (res) ->
callback null, res
s3Stream.on 'error', (err) ->
logger.err err:err, bucketName:bucketName, key:key, "error getting file stream from s3"
callback err
copyFile: (bucketName, sourceKey, destKey, callback)->
logger.log bucketName:bucketName, sourceKey:sourceKey, destKey:destKey, "copying file in s3"
s3Client = knox.createClient
key: settings.filestore.s3.key
secret: settings.filestore.s3.secret
bucket: bucketName
s3Client.copyFile sourceKey, destKey, (err)->
if err?
logger.err err:err, bucketName:bucketName, sourceKey:sourceKey, destKey:destKey, "something went wrong copying file in aws"
callback(err)
deleteFile: (bucketName, key, callback)->
logger.log bucketName:bucketName, key:key, "delete file in s3"
options = buildDefaultOptions(bucketName, "delete", key)
request options, (err, res)->
if err?
logger.err err:err, res:res, bucketName:bucketName, key:key, "something went wrong deleting file in aws"
callback(err)
deleteDirectory: (bucketName, key, _callback)->
# deleteMultiple can call the callback multiple times so protect against this.
callback = (args...) ->
_callback(args...)
_callback = () ->
logger.log key: key, bucketName: bucketName, "deleting directory"
s3Client = knox.createClient
key: settings.filestore.s3.key
secret: settings.filestore.s3.secret
bucket: bucketName
s3Client.list prefix:key, (err, data)->
keys = _.map data.Contents, (entry)->
return entry.Key
s3Client.deleteMultiple keys, callback
checkIfFileExists:(bucketName, key, callback)->
logger.log bucketName:bucketName, key:key, "checking if file exists in s3"
options = buildDefaultOptions(bucketName, "head", key)
request options, (err, res)->
if err?
logger.err err:err, res:res, bucketName:bucketName, key:key, "something went wrong checking file in aws"
return callback(err)
if !res?
logger.err err:err, res:res, bucketName:bucketName, key:key, "no response object returned when checking if file exists"
err = new Error("no response from s3 #{bucketName} #{key}")
return callback(err)
exists = res.statusCode == 200
logger.log bucketName:bucketName, key:key, exists:exists, "checked if file exsists in s3"
callback(err, exists)